Java org.apache.commons.lang3 CharUtils fields, constructors, methods, implement or subclass

Checks whether the character is ASCII 7 bit.

 CharUtils.isAscii('a')  = true CharUtils.isAscii('A')  = true CharUtils.isAscii('3')  = true CharUtils.isAscii('-')  = true CharUtils.isAscii('\n') = true CharUtils.isAscii('©') = false 

Checks whether the character is ASCII 7 bit alphabetic.

 CharUtils.isAsciiAlpha('a')  = true CharUtils.isAsciiAlpha('A')  = true CharUtils.isAsciiAlpha('3')  = false CharUtils.isAsciiAlpha('-')  = false CharUtils.isAsciiAlpha('\n') = false CharUtils.isAsciiAlpha('©') = false 

Checks whether the character is ASCII 7 bit alphabetic lower case.

 CharUtils.isAsciiAlphaLower('a')  = true CharUtils.isAsciiAlphaLower('A')  = false CharUtils.isAsciiAlphaLower('3')  = false CharUtils.isAsciiAlphaLower('-')  = false CharUtils.isAsciiAlphaLower('\n') = false CharUtils.isAsciiAlphaLower('©') = false 

Checks whether the character is ASCII 7 bit numeric.

 CharUtils.isAsciiAlphanumeric('a')  = true CharUtils.isAsciiAlphanumeric('A')  = true CharUtils.isAsciiAlphanumeric('3')  = true CharUtils.isAsciiAlphanumeric('-')  = false CharUtils.isAsciiAlphanumeric('\n') = false CharUtils.isAsciiAlphanumeric('©') = false 

Checks whether the character is ASCII 7 bit alphabetic upper case.

 CharUtils.isAsciiAlphaUpper('a')  = false CharUtils.isAsciiAlphaUpper('A')  = true CharUtils.isAsciiAlphaUpper('3')  = false CharUtils.isAsciiAlphaUpper('-')  = false CharUtils.isAsciiAlphaUpper('\n') = false CharUtils.isAsciiAlphaUpper('©') = false 

Checks whether the character is ASCII 7 bit control.

 CharUtils.isAsciiControl('a')  = false CharUtils.isAsciiControl('A')  = false CharUtils.isAsciiControl('3')  = false CharUtils.isAsciiControl('-')  = false CharUtils.isAsciiControl('\n') = true CharUtils.isAsciiControl('©') = false 

Checks whether the character is ASCII 7 bit numeric.

 CharUtils.isAsciiNumeric('a')  = false CharUtils.isAsciiNumeric('A')  = false CharUtils.isAsciiNumeric('3')  = true CharUtils.isAsciiNumeric('-')  = false CharUtils.isAsciiNumeric('\n') = false CharUtils.isAsciiNumeric('©') = false 

Checks whether the character is ASCII 7 bit printable.

 CharUtils.isAsciiPrintable('a')  = true CharUtils.isAsciiPrintable('A')  = true CharUtils.isAsciiPrintable('3')  = true CharUtils.isAsciiPrintable('-')  = true CharUtils.isAsciiPrintable('\n') = false CharUtils.isAsciiPrintable('©') = false 

Converts the Character to a char throwing an exception for null .

 CharUtils.toChar(' ')  = ' ' CharUtils.toChar('A')  = 'A' CharUtils.toChar(null) throws IllegalArgumentException 

Converts the String to a char using the first character, throwing an exception on empty Strings.

 CharUtils.toChar("A")  = 'A' CharUtils.toChar("BA") = 'B' CharUtils.toChar(null) throws IllegalArgumentException CharUtils.toChar("")   throws IllegalArgumentException 

Converts the character to the Integer it represents, throwing an exception if the character is not numeric.

This method coverts the char '1' to the int 1 and so on.

 CharUtils.toIntValue('3')  = 3 CharUtils.toIntValue('A')  throws IllegalArgumentException 

Converts the character to the Integer it represents, throwing an exception if the character is not numeric.

This method coverts the char '1' to the int 1 and so on.

 CharUtils.toIntValue('3')  = 3 CharUtils.toIntValue(null) throws IllegalArgumentException CharUtils.toIntValue('A')  throws IllegalArgumentException 

Converts the character to a String that contains the one character.

For ASCII 7 bit characters, this uses a cache that will return the same String object each time.

 CharUtils.toString(' ')  = " " CharUtils.toString('A')  = "A" 

Converts the character to a String that contains the one character.

For ASCII 7 bit characters, this uses a cache that will return the same String object each time.

If null is passed in, null will be returned.

 CharUtils.toString(null) = null CharUtils.toString(' ')  = " " CharUtils.toString('A')  = "A"