Operations on char primitives and Character objects.
* *This class tries to handle null
input gracefully.
* An exception will not be thrown for a null
input.
* Each method documents its behaviour in more detail.
Converts the string to the unicode format '\u0020'.
* *This format is the Java source code format.
* ** CharUtils.unicodeEscaped(' ') = "\u0020" * CharUtils.unicodeEscaped('A') = "\u0041" ** * @param ch the character to convert * @return the escaped unicode string */ public static String unicodeEscaped(char ch) { if (ch < 0x10) { return "\\u000" + Integer.toHexString(ch); } else if (ch < 0x100) { return "\\u00" + Integer.toHexString(ch); } else if (ch < 0x1000) { return "\\u0" + Integer.toHexString(ch); } return "\\u" + Integer.toHexString(ch); } /** *
Converts the string to the unicode format '\u0020'.
* *This format is the Java source code format.
* *If null
is passed in, null
will be returned.
* CharUtils.unicodeEscaped(null) = null * CharUtils.unicodeEscaped(' ') = "\u0020" * CharUtils.unicodeEscaped('A') = "\u0041" ** * @param ch the character to convert, may be null * @return the escaped unicode string, null if null input */ public static String unicodeEscaped(Character ch) { if (ch == null) { return null; } return unicodeEscaped(ch.charValue()); } }