Java Utililty Methods Unicode Escape

List of utility methods to do Unicode Escape

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Description

The list of methods to do Unicode Escape are organized into topic(s).

Method

StringunicodeEscape(char c)
unicode Escape 
if (c <= 0xf)
    return "\\u000" + Integer.toHexString(c);
else if (c <= 0xff)
    return "\\u00" + Integer.toHexString(c);
else if (c <= 0xfff)
    return "\\u0" + Integer.toHexString(c);
else
    return "\\u" + Integer.toHexString(c);
...
StringunicodeEscape(Character ch)
converts a Character to a java-style unicode escaped string 
return unicodeHexEscapeJava(ch.charValue());
StringunicodeEscape(String s)
unicode Escape 
StringBuilder sb = new StringBuilder();
for (int i = 0; i < s.length(); i++) {
    char c = s.charAt(i);
    if ((c >> 7) > 0) {
        sb.append("\\u");
        sb.append(hexChar[(c >> 12) & 0xF]); 
        sb.append(hexChar[(c >> 8) & 0xF]); 
        sb.append(hexChar[(c >> 4) & 0xF]); 
...
StringunicodeEscape(String s)
unicode Escape 
StringBuffer sb = new StringBuffer();
for (int i = 0; i < s.length(); i++) {
    char c = s.charAt(i);
    sb.append(unicodeEscape(c));
return sb.toString();
intunicodeEscape(StringBuilder result, int in, int index)
Given a char, and its location in a StringBuilder, replace it with an escaped unicode if necessary 
if (in >= 32 && in <= 127) {
    return index;
if (in > '\uffff') {
    final char[] surrogatePair = Character.toChars(in);
    final String first = hex(surrogatePair[0]);
    final String second = hex(surrogatePair[1]);
    result.ensureCapacity(result.capacity() + 2 + first.length() + second.length());
...
StringunicodeEscaped(char ch)
unicode Escaped 
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);
...
StringunicodeEscaped(Character ch)
unicode Escaped 
if (ch == null) {
    return null;
return unicodeEscaped(ch.charValue());
StringunicodeEscaped(Character 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" 
if (ch == null) {
    return null;
return unicodeEscaped(ch.charValue());
StringunicodeEscaped(final Character 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" 
if (ch == null) {
    return null;
return unicodeEscaped(ch.charValue());
StringunicodeEscaped(final String str)
Returns the Subl escaped string representing the input string Each character that is not 7 bit ASCII and ASCII control characters are escaped in the following form where xxxx is the hex representation of the character (it may be from 2 to 6 hex digits as needed). 
String estr = escapeDoubleQuotes(str);
StringBuilder sb = new StringBuilder(str.length());
char c = 0; 
int i;
for (i = 0; i < estr.length(); i++) {
    c = estr.charAt(i);
    if (c >= 0x20 && c < 0x80) {
        if (c == '&')
...