java.lang.Object
- org.apache.commons.csv.CSVFormat

All Implemented Interfaces:

java.io.Serializable
```
public final class CSVFormat
extends java.lang.Object
implements java.io.Serializable
```
Specifies the format of a CSV file and parses input.
Using predefined formats

You can use one of the predefined formats:
For example:
```
 CSVParser parser = CSVFormat.EXCEL.parse(reader);
 
```
The CSVParser provides static methods to parse other input types, for example:
```
 CSVParser parser = CSVParser.parse(file, StandardCharsets.US_ASCII, CSVFormat.EXCEL);
 
```
Defining formats

You can extend a format by calling the with methods. For example:
```
 CSVFormat.EXCEL.withNullString("N/A").withIgnoreSurroundingSpaces(true);
 
```
Defining column names

To define the column names you want to use to access records, write:
```
 CSVFormat.EXCEL.withHeader("Col1", "Col2", "Col3");
 
```
Calling withHeader(String...) let's you use the given names to address values in a CSVRecord, and assumes that your CSV source does not contain a first record that also defines column names. If it does, then you are overriding this metadata with your names and you should skip the first record by calling withSkipHeaderRecord(boolean) with true.

Parsing

You can use a format directly to parse a reader. For example, to parse an Excel file with columns header, write:
```
 Reader in = ...;
 CSVFormat.EXCEL.withHeader("Col1", "Col2", "Col3").parse(in);
 
```
For other input types, like resources, files, and URLs, use the static methods on CSVParser.

Referencing columns safely

If your source contains a header record, you can simplify your code and safely reference columns, by using withHeader(String...) with no arguments:
```
 CSVFormat.EXCEL.withHeader();
 
```
This causes the parser to read the first record and use its values as column names. Then, call one of the CSVRecord get method that takes a String column name argument:
```
 String value = record.get("Col1");
 
```
This makes your code impervious to changes in column order in the CSV file.

Notes

This class is immutable.
See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class CSVFormat.Predefined
Predefines formats.

Field Summary

Fields
Modifier and Type	Field	Description
`static CSVFormat`	`DEFAULT`	Standard Comma Separated Value format, as for `RFC4180` but allowing empty lines.
`static CSVFormat`	`EXCEL`	Excel file format (using a comma as the value delimiter).
`static CSVFormat`	`INFORMIX_UNLOAD`	Default Informix CSV UNLOAD format used by the `UNLOAD TO file_name` operation.
`static CSVFormat`	`INFORMIX_UNLOAD_CSV`	Default Informix CSV UNLOAD format used by the `UNLOAD TO file_name` operation (escaping is disabled.)
`static CSVFormat`	`MONGODB_CSV`	Default MongoDB CSV format used by the `mongoexport` operation.
`static CSVFormat`	`MONGODB_TSV`	Default MongoDB TSV format used by the `mongoexport` operation.
`static CSVFormat`	`MYSQL`	Default MySQL format used by the `SELECT INTO OUTFILE` and `LOAD DATA INFILE` operations.
`static CSVFormat`	`ORACLE`	Default Oracle format used by the SQL*Loader utility.
`static CSVFormat`	`POSTGRESQL_CSV`	Default PostgreSQL CSV format used by the `COPY` operation.
`static CSVFormat`	`POSTGRESQL_TEXT`	Default PostgreSQL text format used by the `COPY` operation.
`static CSVFormat`	`RFC4180`	Comma separated format as defined by RFC 4180.
`static CSVFormat`	`TDF`	Tab-delimited format.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(java.lang.Object obj)`
`java.lang.String`	`format(java.lang.Object... values)`	Formats the specified values.
`boolean`	`getAllowMissingColumnNames()`	Specifies whether missing column names are allowed when parsing the header line.
`boolean`	`getAutoFlush()`	Returns whether to flush on close.
`java.lang.Character`	`getCommentMarker()`	Returns the character marking the start of a line comment.
`char`	`getDelimiter()`	Returns the character delimiting the values (typically ';', ',' or '\t').
`java.lang.Character`	`getEscapeCharacter()`	Returns the escape character.
`java.lang.String[]`	`getHeader()`	Returns a copy of the header array.
`java.lang.String[]`	`getHeaderComments()`	Returns a copy of the header comment array.
`boolean`	`getIgnoreEmptyLines()`	Specifies whether empty lines between records are ignored when parsing input.
`boolean`	`getIgnoreHeaderCase()`	Specifies whether header names will be accessed ignoring case.
`boolean`	`getIgnoreSurroundingSpaces()`	Specifies whether spaces around values are ignored when parsing input.
`java.lang.String`	`getNullString()`	Gets the String to convert to and from `null`.
`java.lang.Character`	`getQuoteCharacter()`	Returns the character used to encapsulate values containing special characters.
`QuoteMode`	`getQuoteMode()`	Returns the quote policy output fields.
`java.lang.String`	`getRecordSeparator()`	Returns the record separator delimiting output records.
`boolean`	`getSkipHeaderRecord()`	Returns whether to skip the header record.
`boolean`	`getTrailingDelimiter()`	Returns whether to add a trailing delimiter.
`boolean`	`getTrim()`	Returns whether to trim leading and trailing blanks.
`int`	`hashCode()`
`boolean`	`isCommentMarkerSet()`	Specifies whether comments are supported by this format.
`boolean`	`isEscapeCharacterSet()`	Returns whether escape are being processed.
`boolean`	`isNullStringSet()`	Returns whether a nullString has been defined.
`boolean`	`isQuoteCharacterSet()`	Returns whether a quoteChar has been defined.
`static CSVFormat`	`newFormat(char delimiter)`	Creates a new CSV format with the specified delimiter.
`CSVParser`	`parse(java.io.Reader in)`	Parses the specified content.
`CSVPrinter`	`print(java.io.File out, java.nio.charset.Charset charset)`	Prints to the specified output.
`CSVPrinter`	`print(java.lang.Appendable out)`	Prints to the specified output.
`void`	`print(java.lang.Object value, java.lang.Appendable out, boolean newRecord)`	Prints the `value` as the next value on the line to `out`.
`CSVPrinter`	`print(java.nio.file.Path out, java.nio.charset.Charset charset)`	Prints to the specified output.
`CSVPrinter`	`printer()`	Prints to the `System.out`.
`void`	`println(java.lang.Appendable out)`	Outputs the trailing delimiter (if set) followed by the record separator (if set).
`void`	`printRecord(java.lang.Appendable out, java.lang.Object... values)`	Prints the given `values` to `out` as a single record of delimiter separated values followed by the record separator.
`java.lang.String`	`toString()`
`static CSVFormat`	`valueOf(java.lang.String format)`	Gets one of the predefined formats from `CSVFormat.Predefined`.
`CSVFormat`	`withAllowMissingColumnNames()`	Returns a new `CSVFormat` with the missing column names behavior of the format set to `true`
`CSVFormat`	`withAllowMissingColumnNames(boolean allowMissingColumnNames)`	Returns a new `CSVFormat` with the missing column names behavior of the format set to the given value.
`CSVFormat`	`withAutoFlush(boolean autoFlush)`	Returns a new `CSVFormat` with whether to flush on close.
`CSVFormat`	`withCommentMarker(char commentMarker)`	Returns a new `CSVFormat` with the comment start marker of the format set to the specified character.
`CSVFormat`	`withCommentMarker(java.lang.Character commentMarker)`	Returns a new `CSVFormat` with the comment start marker of the format set to the specified character.
`CSVFormat`	`withDelimiter(char delimiter)`	Returns a new `CSVFormat` with the delimiter of the format set to the specified character.
`CSVFormat`	`withEscape(char escape)`	Returns a new `CSVFormat` with the escape character of the format set to the specified character.
`CSVFormat`	`withEscape(java.lang.Character escape)`	Returns a new `CSVFormat` with the escape character of the format set to the specified character.
`CSVFormat`	`withFirstRecordAsHeader()`	Returns a new `CSVFormat` using the first record as header.
`CSVFormat`	`withHeader(java.lang.Class<? extends java.lang.Enum<?>> headerEnum)`	Returns a new `CSVFormat` with the header of the format defined by the enum class.
`CSVFormat`	`withHeader(java.lang.String... header)`	Returns a new `CSVFormat` with the header of the format set to the given values.
`CSVFormat`	`withHeaderComments(java.lang.Object... headerComments)`	Returns a new `CSVFormat` with the header comments of the format set to the given values.
`CSVFormat`	`withIgnoreEmptyLines()`	Returns a new `CSVFormat` with the empty line skipping behavior of the format set to `true`.
`CSVFormat`	`withIgnoreEmptyLines(boolean ignoreEmptyLines)`	Returns a new `CSVFormat` with the empty line skipping behavior of the format set to the given value.
`CSVFormat`	`withIgnoreHeaderCase()`	Returns a new `CSVFormat` with the header ignore case behavior set to `true`.
`CSVFormat`	`withIgnoreHeaderCase(boolean ignoreHeaderCase)`	Returns a new `CSVFormat` with whether header names should be accessed ignoring case.
`CSVFormat`	`withIgnoreSurroundingSpaces()`	Returns a new `CSVFormat` with the trimming behavior of the format set to `true`.
`CSVFormat`	`withIgnoreSurroundingSpaces(boolean ignoreSurroundingSpaces)`	Returns a new `CSVFormat` with the trimming behavior of the format set to the given value.
`CSVFormat`	`withNullString(java.lang.String nullString)`	Returns a new `CSVFormat` with conversions to and from null for strings on input and output.
`CSVFormat`	`withQuote(char quoteChar)`	Returns a new `CSVFormat` with the quoteChar of the format set to the specified character.
`CSVFormat`	`withQuote(java.lang.Character quoteChar)`	Returns a new `CSVFormat` with the quoteChar of the format set to the specified character.
`CSVFormat`	`withQuoteMode(QuoteMode quoteModePolicy)`	Returns a new `CSVFormat` with the output quote policy of the format set to the specified value.
`CSVFormat`	`withRecordSeparator(char recordSeparator)`	Returns a new `CSVFormat` with the record separator of the format set to the specified character.
`CSVFormat`	`withRecordSeparator(java.lang.String recordSeparator)`	Returns a new `CSVFormat` with the record separator of the format set to the specified String.
`CSVFormat`	`withSkipHeaderRecord()`	Returns a new `CSVFormat` with skipping the header record set to `true`.
`CSVFormat`	`withSkipHeaderRecord(boolean skipHeaderRecord)`	Returns a new `CSVFormat` with whether to skip the header record.
`CSVFormat`	`withSystemRecordSeparator()`	Returns a new `CSVFormat` with the record separator of the format set to the operating system's line separator string, typically CR+LF on Windows and LF on Linux.
`CSVFormat`	`withTrailingDelimiter()`	Returns a new `CSVFormat` to add a trailing delimiter.
`CSVFormat`	`withTrailingDelimiter(boolean trailingDelimiter)`	Returns a new `CSVFormat` with whether to add a trailing delimiter.
`CSVFormat`	`withTrim()`	Returns a new `CSVFormat` to trim leading and trailing blanks.
`CSVFormat`	`withTrim(boolean trim)`	Returns a new `CSVFormat` with whether to trim leading and trailing blanks.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - DEFAULT
```
public static final CSVFormat DEFAULT
```
    Standard Comma Separated Value format, as for RFC4180 but allowing empty lines.
    Settings are:
    
    withDelimiter(',')
    
    withQuote('"')
    
    withRecordSeparator("\r\n")
    
    withIgnoreEmptyLines(true)
    See Also:
    
    CSVFormat.Predefined.Default
  - EXCEL
```
public static final CSVFormat EXCEL
```
    Excel file format (using a comma as the value delimiter). Note that the actual value delimiter used by Excel is locale dependent, it might be necessary to customize this format to accommodate to your regional settings.
    For example for parsing or generating a CSV file on a French system the following format will be used:
    
    CSVFormat fmt = CSVFormat.EXCEL.withDelimiter(';');
    
    Settings are:
    
    {@link #withDelimiter(char) withDelimiter(',')}
    
    {@link #withQuote(char) withQuote('"')}
    
    {@link #withRecordSeparator(String) withRecordSeparator("\r\n")}
    
    {@link #withIgnoreEmptyLines(boolean) withIgnoreEmptyLines(false)}
    
    {@link #withAllowMissingColumnNames(boolean) withAllowMissingColumnNames(true)}
    
    Note: This is currently like RFC4180 plus withAllowMissingColumnNames(true) and withIgnoreEmptyLines(false).
    See Also:
    
    CSVFormat.Predefined.Excel
  - INFORMIX_UNLOAD
```
public static final CSVFormat INFORMIX_UNLOAD
```
    Default Informix CSV UNLOAD format used by the UNLOAD TO file_name operation.
    This is a comma-delimited format with a LF character as the line separator. Values are not quoted and special characters are escaped with '\'. The default NULL string is "\\N".
    
    Settings are:
    
    withDelimiter(',')
    
    withEscape('\\')
    
    withQuote("\"")
    
    withRecordSeparator('\n')
    Since:
    
    1.3
    
    See Also:
    
    CSVFormat.Predefined.MySQL, http://www.ibm.com/support/knowledgecenter/SSBJG3_2.5.0/com.ibm.gen_busug.doc/c_fgl_InOutSql_UNLOAD.htm
  - INFORMIX_UNLOAD_CSV
```
public static final CSVFormat INFORMIX_UNLOAD_CSV
```
    Default Informix CSV UNLOAD format used by the UNLOAD TO file_name operation (escaping is disabled.)
    This is a comma-delimited format with a LF character as the line separator. Values are not quoted and special characters are escaped with '\'. The default NULL string is "\\N".
    
    Settings are:
    
    withDelimiter(',')
    
    withQuote("\"")
    
    withRecordSeparator('\n')
    Since:
    
    1.3
    
    See Also:
    
    CSVFormat.Predefined.MySQL, http://www.ibm.com/support/knowledgecenter/SSBJG3_2.5.0/com.ibm.gen_busug.doc/c_fgl_InOutSql_UNLOAD.htm
  - MONGODB_CSV
```
public static final CSVFormat MONGODB_CSV
```
    Default MongoDB CSV format used by the mongoexport operation.
    Parsing is not supported yet.
    
    This is a comma-delimited format. Values are double quoted only if needed and special characters are escaped with '"'. A header line with field names is expected.
    
    Settings are:
    
    withDelimiter(',')
    
    withEscape('"')
    
    withQuote('"')
    
    withQuoteMode(QuoteMode.ALL_NON_NULL)
    
    withSkipHeaderRecord(false)
    Since:
    
    1.7
    
    See Also:
    
    CSVFormat.Predefined.MongoDBCsv, MongoDB mongoexport command documentation
  - MONGODB_TSV
```
public static final CSVFormat MONGODB_TSV
```
    Default MongoDB TSV format used by the mongoexport operation.
    Parsing is not supported yet.
    
    This is a tab-delimited format. Values are double quoted only if needed and special characters are escaped with '"'. A header line with field names is expected.
    
    Settings are:
    
    withDelimiter('\t')
    
    withEscape('"')
    
    withQuote('"')
    
    withQuoteMode(QuoteMode.ALL_NON_NULL)
    
    withSkipHeaderRecord(false)
    Since:
    
    1.7
    
    See Also:
    
    CSVFormat.Predefined.MongoDBCsv, MongoDB mongoexport command documentation
  - MYSQL
```
public static final CSVFormat MYSQL
```
    Default MySQL format used by the SELECT INTO OUTFILE and LOAD DATA INFILE operations.
    This is a tab-delimited format with a LF character as the line separator. Values are not quoted and special characters are escaped with '\'. The default NULL string is "\\N".
    
    Settings are:
    
    withDelimiter('\t')
    
    withEscape('\\')
    
    withIgnoreEmptyLines(false)
    
    withQuote(null)
    
    withRecordSeparator('\n')
    
    withNullString("\\N")
    
    withQuoteMode(QuoteMode.ALL_NON_NULL)
    See Also:
    
    CSVFormat.Predefined.MySQL, http://dev.mysql.com/doc/refman/5.1/en/load -data.html
  - ORACLE
```
public static final CSVFormat ORACLE
```
    Default Oracle format used by the SQL*Loader utility.
    This is a comma-delimited format with the system line separator character as the record separator.Values are double quoted when needed and special characters are escaped with '"'. The default NULL string is "". Values are trimmed.
    
    Settings are:
    
    withDelimiter(',') // default is {@code FIELDS TERMINATED BY ','}
    
    withEscape('\\')
    
    withIgnoreEmptyLines(false)
    
    withQuote('"') // default is {@code OPTIONALLY ENCLOSED BY '"'}
    
    withNullString("\\N")
    
    withTrim()
    
    withSystemRecordSeparator()
    
    withQuoteMode(QuoteMode.MINIMAL)
    Since:
    
    1.6
    
    See Also:
    
    CSVFormat.Predefined.Oracle, Oracle CSV Format Specification
  - POSTGRESQL_CSV
```
public static final CSVFormat POSTGRESQL_CSV
```
    Default PostgreSQL CSV format used by the COPY operation.
    This is a comma-delimited format with a LF character as the line separator. Values are double quoted and special characters are escaped with '"'. The default NULL string is "".
    
    Settings are:
    
    withDelimiter(',')
    
    withEscape('"')
    
    withIgnoreEmptyLines(false)
    
    withQuote('"')
    
    withRecordSeparator('\n')
    
    withNullString("")
    
    withQuoteMode(QuoteMode.ALL_NON_NULL)
    Since:
    
    1.5
    
    See Also:
    
    CSVFormat.Predefined.MySQL, PostgreSQL COPY command documentation
  - POSTGRESQL_TEXT
```
public static final CSVFormat POSTGRESQL_TEXT
```
    Default PostgreSQL text format used by the COPY operation.
    This is a tab-delimited format with a LF character as the line separator. Values are double quoted and special characters are escaped with '"'. The default NULL string is "\\N".
    
    Settings are:
    
    withDelimiter('\t')
    
    withEscape('\\')
    
    withIgnoreEmptyLines(false)
    
    withQuote('"')
    
    withRecordSeparator('\n')
    
    withNullString("\\N")
    
    withQuoteMode(QuoteMode.ALL_NON_NULL)
    Since:
    
    1.5
    
    See Also:
    
    CSVFormat.Predefined.MySQL, PostgreSQL COPY command documentation
  - RFC4180
```
public static final CSVFormat RFC4180
```
    Comma separated format as defined by RFC 4180.
    Settings are:
    
    withDelimiter(',')
    
    withQuote('"')
    
    withRecordSeparator("\r\n")
    
    withIgnoreEmptyLines(false)
    See Also:
    
    CSVFormat.Predefined.RFC4180
  - TDF
```
public static final CSVFormat TDF
```
    Tab-delimited format.
    Settings are:
    
    withDelimiter('\t')
    
    withQuote('"')
    
    withRecordSeparator("\r\n")
    
    withIgnoreSurroundingSpaces(true)
    See Also:
    
    CSVFormat.Predefined.TDF
- Method Detail
  - newFormat
```
public static CSVFormat newFormat(char delimiter)
```
    Creates a new CSV format with the specified delimiter.
    Use this method if you want to create a CSVFormat from scratch. All fields but the delimiter will be initialized with null/false.
    
    Parameters:
    
    delimiter - the char used for value separation, must not be a line break character
    
    Returns:
    
    a new CSV format.
    
    Throws:
    
    java.lang.IllegalArgumentException - if the delimiter is a line break character
    
    See Also:
    
    DEFAULT, RFC4180, MYSQL, EXCEL, TDF
  - valueOf
```
public static CSVFormat valueOf(java.lang.String format)
```
    Gets one of the predefined formats from CSVFormat.Predefined.
    
    Parameters:
    
    format - name
    
    Returns:
    
    one of the predefined formats
    
    Since:
    
    1.2
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Overrides:
    
    equals in class java.lang.Object
  - format
```
public java.lang.String format(java.lang.Object... values)
```
    Formats the specified values.
    
    Parameters:
    
    values - the values to format
    
    Returns:
    
    the formatted values
  - getAllowMissingColumnNames
```
public boolean getAllowMissingColumnNames()
```
    Specifies whether missing column names are allowed when parsing the header line.
    
    Returns:
    
    true if missing column names are allowed when parsing the header line, false to throw an IllegalArgumentException.
  - getAutoFlush
```
public boolean getAutoFlush()
```
    Returns whether to flush on close.
    
    Returns:
    
    whether to flush on close.
    
    Since:
    
    1.6
  - getCommentMarker
```
public java.lang.Character getCommentMarker()
```
    Returns the character marking the start of a line comment.
    
    Returns:
    
    the comment start marker, may be null
  - getDelimiter
```
public char getDelimiter()
```
    Returns the character delimiting the values (typically ';', ',' or '\t').
    
    Returns:
    
    the delimiter character
  - getEscapeCharacter
```
public java.lang.Character getEscapeCharacter()
```
    Returns the escape character.
    
    Returns:
    
    the escape character, may be null
  - getHeader
```
public java.lang.String[] getHeader()
```
    Returns a copy of the header array.
    
    Returns:
    
    a copy of the header array; null if disabled, the empty array if to be read from the file
  - getHeaderComments
```
public java.lang.String[] getHeaderComments()
```
    Returns a copy of the header comment array.
    
    Returns:
    
    a copy of the header comment array; null if disabled.
  - getIgnoreEmptyLines
```
public boolean getIgnoreEmptyLines()
```
    Specifies whether empty lines between records are ignored when parsing input.
    
    Returns:
    
    true if empty lines between records are ignored, false if they are turned into empty records.
  - getIgnoreHeaderCase
```
public boolean getIgnoreHeaderCase()
```
    Specifies whether header names will be accessed ignoring case.
    
    Returns:
    
    true if header names cases are ignored, false if they are case sensitive.
    
    Since:
    
    1.3
  - getIgnoreSurroundingSpaces
```
public boolean getIgnoreSurroundingSpaces()
```
    Specifies whether spaces around values are ignored when parsing input.
    
    Returns:
    
    true if spaces around values are ignored, false if they are treated as part of the value.
  - getNullString
```
public java.lang.String getNullString()
```
    Gets the String to convert to and from null.
    
    Reading: Converts strings equal to the given nullString to null when reading records.
    
    Writing: Writes null as the given nullString when writing records.
    Returns:
    
    the String to convert to and from null. No substitution occurs if null
  - getQuoteCharacter
```
public java.lang.Character getQuoteCharacter()
```
    Returns the character used to encapsulate values containing special characters.
    
    Returns:
    
    the quoteChar character, may be null
  - getQuoteMode
```
public QuoteMode getQuoteMode()
```
    Returns the quote policy output fields.
    
    Returns:
    
    the quote policy
  - getRecordSeparator
```
public java.lang.String getRecordSeparator()
```
    Returns the record separator delimiting output records.
    
    Returns:
    
    the record separator
  - getSkipHeaderRecord
```
public boolean getSkipHeaderRecord()
```
    Returns whether to skip the header record.
    
    Returns:
    
    whether to skip the header record.
  - getTrailingDelimiter
```
public boolean getTrailingDelimiter()
```
    Returns whether to add a trailing delimiter.
    
    Returns:
    
    whether to add a trailing delimiter.
    
    Since:
    
    1.3
  - getTrim
```
public boolean getTrim()
```
    Returns whether to trim leading and trailing blanks.
    
    Returns:
    
    whether to trim leading and trailing blanks.
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - isCommentMarkerSet
```
public boolean isCommentMarkerSet()
```
    Specifies whether comments are supported by this format. Note that the comment introducer character is only recognized at the start of a line.
    
    Returns:
    
    true is comments are supported, false otherwise
  - isEscapeCharacterSet
```
public boolean isEscapeCharacterSet()
```
    Returns whether escape are being processed.
    
    Returns:
    
    true if escapes are processed
  - isNullStringSet
```
public boolean isNullStringSet()
```
    Returns whether a nullString has been defined.
    
    Returns:
    
    true if a nullString is defined
  - isQuoteCharacterSet
```
public boolean isQuoteCharacterSet()
```
    Returns whether a quoteChar has been defined.
    
    Returns:
    
    true if a quoteChar is defined
  - parse
```
public CSVParser parse(java.io.Reader in)
                throws java.io.IOException
```
    Parses the specified content.
    See also the various static parse methods on CSVParser.
    
    Parameters:
    
    in - the input stream
    
    Returns:
    
    a parser over a stream of CSVRecords.
    
    Throws:
    
    java.io.IOException - If an I/O error occurs
  - print
```
public CSVPrinter print(java.lang.Appendable out)
                 throws java.io.IOException
```
    Prints to the specified output.
    See also CSVPrinter.
    
    Parameters:
    
    out - the output.
    
    Returns:
    
    a printer to an output.
    
    Throws:
    
    java.io.IOException - thrown if the optional header cannot be printed.
  - print
```
public CSVPrinter print(java.io.File out,
                        java.nio.charset.Charset charset)
                 throws java.io.IOException
```
    Prints to the specified output.
    See also CSVPrinter.
    
    Parameters:
    
    out - the output.
    
    charset - A charset.
    
    Returns:
    
    a printer to an output.
    
    Throws:
    
    java.io.IOException - thrown if the optional header cannot be printed.
    
    Since:
    
    1.5
  - print
```
public void print(java.lang.Object value,
                  java.lang.Appendable out,
                  boolean newRecord)
           throws java.io.IOException
```
    Prints the value as the next value on the line to out. The value will be escaped or encapsulated as needed. Useful when one wants to avoid creating CSVPrinters.
    
    Parameters:
    
    value - value to output.
    
    out - where to print the value.
    
    newRecord - if this a new record.
    
    Throws:
    
    java.io.IOException - If an I/O error occurs.
    
    Since:
    
    1.4
  - print
```
public CSVPrinter print(java.nio.file.Path out,
                        java.nio.charset.Charset charset)
                 throws java.io.IOException
```
    Prints to the specified output.
    See also CSVPrinter.
    
    Parameters:
    
    out - the output.
    
    charset - A charset.
    
    Returns:
    
    a printer to an output.
    
    Throws:
    
    java.io.IOException - thrown if the optional header cannot be printed.
    
    Since:
    
    1.5
  - printer
```
public CSVPrinter printer()
                   throws java.io.IOException
```
    Prints to the System.out.
    See also CSVPrinter.
    
    Returns:
    
    a printer to System.out.
    
    Throws:
    
    java.io.IOException - thrown if the optional header cannot be printed.
    
    Since:
    
    1.5
  - println
```
public void println(java.lang.Appendable out)
             throws java.io.IOException
```
    Outputs the trailing delimiter (if set) followed by the record separator (if set).
    
    Parameters:
    
    out - where to write
    
    Throws:
    
    java.io.IOException - If an I/O error occurs
    
    Since:
    
    1.4
  - printRecord
```
public void printRecord(java.lang.Appendable out,
                        java.lang.Object... values)
                 throws java.io.IOException
```
    Prints the given values to out as a single record of delimiter separated values followed by the record separator.
    The values will be quoted if needed. Quotes and new-line characters will be escaped. This method adds the record separator to the output after printing the record, so there is no need to call println(Appendable).
    
    Parameters:
    
    out - where to write.
    
    values - values to output.
    
    Throws:
    
    java.io.IOException - If an I/O error occurs.
    
    Since:
    
    1.4
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - withAllowMissingColumnNames
```
public CSVFormat withAllowMissingColumnNames()
```
    Returns a new CSVFormat with the missing column names behavior of the format set to true
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified missing column names behavior.
    
    Since:
    
    1.1
    
    See Also:
    
    withAllowMissingColumnNames(boolean)
  - withAllowMissingColumnNames
```
public CSVFormat withAllowMissingColumnNames(boolean allowMissingColumnNames)
```
    Returns a new CSVFormat with the missing column names behavior of the format set to the given value.
    
    Parameters:
    
    allowMissingColumnNames - the missing column names behavior, true to allow missing column names in the header line, false to cause an IllegalArgumentException to be thrown.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified missing column names behavior.
  - withAutoFlush
```
public CSVFormat withAutoFlush(boolean autoFlush)
```
    Returns a new CSVFormat with whether to flush on close.
    
    Parameters:
    
    autoFlush - whether to flush on close.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified autoFlush setting.
    
    Since:
    
    1.6
  - withCommentMarker
```
public CSVFormat withCommentMarker(char commentMarker)
```
    Returns a new CSVFormat with the comment start marker of the format set to the specified character. Note that the comment start character is only recognized at the start of a line.
    
    Parameters:
    
    commentMarker - the comment start marker
    
    Returns:
    
    A new CSVFormat that is equal to this one but with the specified character as the comment start marker
    
    Throws:
    
    java.lang.IllegalArgumentException - thrown if the specified character is a line break
  - withCommentMarker
```
public CSVFormat withCommentMarker(java.lang.Character commentMarker)
```
    Returns a new CSVFormat with the comment start marker of the format set to the specified character. Note that the comment start character is only recognized at the start of a line.
    
    Parameters:
    
    commentMarker - the comment start marker, use null to disable
    
    Returns:
    
    A new CSVFormat that is equal to this one but with the specified character as the comment start marker
    
    Throws:
    
    java.lang.IllegalArgumentException - thrown if the specified character is a line break
  - withDelimiter
```
public CSVFormat withDelimiter(char delimiter)
```
    Returns a new CSVFormat with the delimiter of the format set to the specified character.
    
    Parameters:
    
    delimiter - the delimiter character
    
    Returns:
    
    A new CSVFormat that is equal to this with the specified character as delimiter
    
    Throws:
    
    java.lang.IllegalArgumentException - thrown if the specified character is a line break
  - withEscape
```
public CSVFormat withEscape(char escape)
```
    Returns a new CSVFormat with the escape character of the format set to the specified character.
    
    Parameters:
    
    escape - the escape character
    
    Returns:
    
    A new CSVFormat that is equal to his but with the specified character as the escape character
    
    Throws:
    
    java.lang.IllegalArgumentException - thrown if the specified character is a line break
  - withEscape
```
public CSVFormat withEscape(java.lang.Character escape)
```
    Returns a new CSVFormat with the escape character of the format set to the specified character.
    
    Parameters:
    
    escape - the escape character, use null to disable
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified character as the escape character
    
    Throws:
    
    java.lang.IllegalArgumentException - thrown if the specified character is a line break
  - withFirstRecordAsHeader
```
public CSVFormat withFirstRecordAsHeader()
```
    Returns a new CSVFormat using the first record as header.
    Calling this method is equivalent to calling:
    
    CSVFormat format = aFormat.withHeader().withSkipHeaderRecord();
    Returns:
    
    A new CSVFormat that is equal to this but using the first record as header.
    
    Since:
    
    1.3
    
    See Also:
    
    withSkipHeaderRecord(boolean), withHeader(String...)
  - withHeader
```
public CSVFormat withHeader(java.lang.Class<? extends java.lang.Enum<?>> headerEnum)
```
    Returns a new CSVFormat with the header of the format defined by the enum class.
    Example:
    
    public enum Header { Name, Email, Phone } CSVFormat format = aformat.withHeader(Header.class);
    
    The header is also used by the CSVPrinter.
    Parameters:
    
    headerEnum - the enum defining the header, null if disabled, empty if parsed automatically, user specified otherwise.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified header
    
    Since:
    
    1.3
    
    See Also:
    
    withHeader(String...), withSkipHeaderRecord(boolean)
  - withHeader
```
public CSVFormat withHeader(java.lang.String... header)
```
    Returns a new CSVFormat with the header of the format set to the given values. The header can either be parsed automatically from the input file with:
    CSVFormat format = aformat.withHeader();
    or specified manually with:
    CSVFormat format = aformat.withHeader("name", "email", "phone");
    
    The header is also used by the CSVPrinter.
    Parameters:
    
    header - the header, null if disabled, empty if parsed automatically, user specified otherwise.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified header
    
    See Also:
    
    withSkipHeaderRecord(boolean)
  - withHeaderComments
```
public CSVFormat withHeaderComments(java.lang.Object... headerComments)
```
    Returns a new CSVFormat with the header comments of the format set to the given values. The comments will be printed first, before the headers. This setting is ignored by the parser.
    CSVFormat format = aformat.withHeaderComments("Generated by Apache Commons CSV 1.1.", new Date());
    Parameters:
    
    headerComments - the headerComments which will be printed by the Printer before the actual CSV data.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified header
    
    Since:
    
    1.1
    
    See Also:
    
    withSkipHeaderRecord(boolean)
  - withIgnoreEmptyLines
```
public CSVFormat withIgnoreEmptyLines()
```
    Returns a new CSVFormat with the empty line skipping behavior of the format set to true.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified empty line skipping behavior.
    
    Since:
    
    withIgnoreEmptyLines(boolean), 1.1
  - withIgnoreEmptyLines
```
public CSVFormat withIgnoreEmptyLines(boolean ignoreEmptyLines)
```
    Returns a new CSVFormat with the empty line skipping behavior of the format set to the given value.
    
    Parameters:
    
    ignoreEmptyLines - the empty line skipping behavior, true to ignore the empty lines between the records, false to translate empty lines to empty records.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified empty line skipping behavior.
  - withIgnoreHeaderCase
```
public CSVFormat withIgnoreHeaderCase()
```
    Returns a new CSVFormat with the header ignore case behavior set to true.
    
    Returns:
    
    A new CSVFormat that will ignore case header name.
    
    Since:
    
    1.3
    
    See Also:
    
    withIgnoreHeaderCase(boolean)
  - withIgnoreHeaderCase
```
public CSVFormat withIgnoreHeaderCase(boolean ignoreHeaderCase)
```
    Returns a new CSVFormat with whether header names should be accessed ignoring case.
    
    Parameters:
    
    ignoreHeaderCase - the case mapping behavior, true to access name/values, false to leave the mapping as is.
    
    Returns:
    
    A new CSVFormat that will ignore case header name if specified as true
    
    Since:
    
    1.3
  - withIgnoreSurroundingSpaces
```
public CSVFormat withIgnoreSurroundingSpaces()
```
    Returns a new CSVFormat with the trimming behavior of the format set to true.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified trimming behavior.
    
    Since:
    
    1.1
    
    See Also:
    
    withIgnoreSurroundingSpaces(boolean)
  - withIgnoreSurroundingSpaces
```
public CSVFormat withIgnoreSurroundingSpaces(boolean ignoreSurroundingSpaces)
```
    Returns a new CSVFormat with the trimming behavior of the format set to the given value.
    
    Parameters:
    
    ignoreSurroundingSpaces - the trimming behavior, true to remove the surrounding spaces, false to leave the spaces as is.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified trimming behavior.
  - withNullString
```
public CSVFormat withNullString(java.lang.String nullString)
```
    Returns a new CSVFormat with conversions to and from null for strings on input and output.
    
    Reading: Converts strings equal to the given nullString to null when reading records.
    
    Writing: Writes null as the given nullString when writing records.
    Parameters:
    
    nullString - the String to convert to and from null. No substitution occurs if null
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified null conversion string.
  - withQuote
```
public CSVFormat withQuote(char quoteChar)
```
    Returns a new CSVFormat with the quoteChar of the format set to the specified character.
    
    Parameters:
    
    quoteChar - the quoteChar character
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified character as quoteChar
    
    Throws:
    
    java.lang.IllegalArgumentException - thrown if the specified character is a line break
  - withQuote
```
public CSVFormat withQuote(java.lang.Character quoteChar)
```
    Returns a new CSVFormat with the quoteChar of the format set to the specified character.
    
    Parameters:
    
    quoteChar - the quoteChar character, use null to disable
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified character as quoteChar
    
    Throws:
    
    java.lang.IllegalArgumentException - thrown if the specified character is a line break
  - withQuoteMode
```
public CSVFormat withQuoteMode(QuoteMode quoteModePolicy)
```
    Returns a new CSVFormat with the output quote policy of the format set to the specified value.
    
    Parameters:
    
    quoteModePolicy - the quote policy to use for output.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified quote policy
  - withRecordSeparator
```
public CSVFormat withRecordSeparator(char recordSeparator)
```
    Returns a new CSVFormat with the record separator of the format set to the specified character.
    Note: This setting is only used during printing and does not affect parsing. Parsing currently only works for inputs with '\n', '\r' and "\r\n"
    
    Parameters:
    
    recordSeparator - the record separator to use for output.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified output record separator
  - withRecordSeparator
```
public CSVFormat withRecordSeparator(java.lang.String recordSeparator)
```
    Returns a new CSVFormat with the record separator of the format set to the specified String.
    Note: This setting is only used during printing and does not affect parsing. Parsing currently only works for inputs with '\n', '\r' and "\r\n"
    
    Parameters:
    
    recordSeparator - the record separator to use for output.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified output record separator
    
    Throws:
    
    java.lang.IllegalArgumentException - if recordSeparator is none of CR, LF or CRLF
  - withSkipHeaderRecord
```
public CSVFormat withSkipHeaderRecord()
```
    Returns a new CSVFormat with skipping the header record set to true.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified skipHeaderRecord setting.
    
    Since:
    
    1.1
    
    See Also:
    
    withSkipHeaderRecord(boolean), withHeader(String...)
  - withSkipHeaderRecord
```
public CSVFormat withSkipHeaderRecord(boolean skipHeaderRecord)
```
    Returns a new CSVFormat with whether to skip the header record.
    
    Parameters:
    
    skipHeaderRecord - whether to skip the header record.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified skipHeaderRecord setting.
    
    See Also:
    
    withHeader(String...)
  - withSystemRecordSeparator
```
public CSVFormat withSystemRecordSeparator()
```
    Returns a new CSVFormat with the record separator of the format set to the operating system's line separator string, typically CR+LF on Windows and LF on Linux.
    Note: This setting is only used during printing and does not affect parsing. Parsing currently only works for inputs with '\n', '\r' and "\r\n"
    
    Returns:
    
    A new CSVFormat that is equal to this but with the operating system's line separator string.
    
    Since:
    
    1.6
  - withTrailingDelimiter
```
public CSVFormat withTrailingDelimiter()
```
    Returns a new CSVFormat to add a trailing delimiter.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the trailing delimiter setting.
    
    Since:
    
    1.3
  - withTrailingDelimiter
```
public CSVFormat withTrailingDelimiter(boolean trailingDelimiter)
```
    Returns a new CSVFormat with whether to add a trailing delimiter.
    
    Parameters:
    
    trailingDelimiter - whether to add a trailing delimiter.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified trailing delimiter setting.
    
    Since:
    
    1.3
  - withTrim
```
public CSVFormat withTrim()
```
    Returns a new CSVFormat to trim leading and trailing blanks.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the trim setting on.
    
    Since:
    
    1.3
  - withTrim
```
public CSVFormat withTrim(boolean trim)
```
    Returns a new CSVFormat with whether to trim leading and trailing blanks.
    
    Parameters:
    
    trim - whether to trim leading and trailing blanks.
    
    Returns:
    
    A new CSVFormat that is equal to this but with the specified trim setting.
    
    Since:
    
    1.3

Class CSVFormat

Using predefined formats

Defining formats

Defining column names

Parsing

Referencing columns safely

Notes

Nested Class Summary

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEFAULT

EXCEL

INFORMIX_UNLOAD

INFORMIX_UNLOAD_CSV

MONGODB_CSV

MONGODB_TSV

MYSQL

ORACLE

POSTGRESQL_CSV

POSTGRESQL_TEXT

RFC4180

TDF

Method Detail

newFormat

valueOf

equals

format

getAllowMissingColumnNames

getAutoFlush

getCommentMarker

getDelimiter

getEscapeCharacter

getHeader

getHeaderComments

getIgnoreEmptyLines

getIgnoreHeaderCase

getIgnoreSurroundingSpaces

getNullString

getQuoteCharacter

getQuoteMode

getRecordSeparator

getSkipHeaderRecord

getTrailingDelimiter

getTrim

hashCode

isCommentMarkerSet

isEscapeCharacterSet

isNullStringSet

isQuoteCharacterSet

parse

print

print

print

print

printer

println

printRecord

toString

withAllowMissingColumnNames

withAllowMissingColumnNames

withAutoFlush

withCommentMarker

withCommentMarker

withDelimiter

withEscape

withEscape

withFirstRecordAsHeader

withHeader

withHeader

withHeaderComments

withIgnoreEmptyLines

withIgnoreEmptyLines

withIgnoreHeaderCase

withIgnoreHeaderCase

withIgnoreSurroundingSpaces

withIgnoreSurroundingSpaces

withNullString

withQuote