Java Utililty Methods Char Convert To

List of utility methods to do Char Convert To

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Description

The list of methods to do Char Convert To are organized into topic(s).

Method

intcharToDigit(char c)
char To Digit 
return CODEX.indexOf(c);
StringcharToEscape(char ch)
Return the Java Unicode escape sequence for the given character. 
String hexValue = Integer.toHexString(ch);
if (hexValue.length() == 1) {
    return "\\u000" + hexValue;
if (hexValue.length() == 2) {
    return "\\u00" + hexValue;
if (hexValue.length() == 3) {
...
StringcharToHTML(char ch, boolean xml)
Converts a character to HTML or XML entity. 
int c;
if (ch == '<') {
    return ("&lt;");
else if (ch == '>') {
    return ("&gt;");
else if (ch == '&') {
...
LongcharToLong(final char value)
char To Long 
return (long) value;
charcharToLowerCase(char c)
char To Lower Case 
if (c >= 'A' && c <= 'Z')
    return (char) (c - ('A' - 'a'));
return c;
StringcharToNCRef(int c)
Convert a single unicode scalar value to an XML numeric character reference. 
StringBuffer sb = new StringBuffer();
for (int i = 0, nDigits = (c > 0xFFFF) ? 6 : 4; i < nDigits; i++, c >>= 4) {
    int d = c & 0xF;
    char hd;
    if (d < 10) {
        hd = (char) ((int) '0' + d);
    } else {
        hd = (char) ((int) 'A' + (d - 10));
...
bytecharToNum(char c)
char To Num 
switch (c) {
case '0':
    return 0x0;
case '1':
    return 0x1;
case '2':
    return 0x2;
case '3':
...
intcharToNybble(char c)
char To Nybble 
if (Character.isDigit(c)) {
    return c - '0';
return (Character.toUpperCase(c) - 'A') + 10;
intcharToOctet(char c)
char To Octet 
if (c > '9') {
    if (c > 'F') {
        return c - 'a' + 10;
    return c - 'A' + 10;
return c - '0';
StringcharToUpperOrLower(String string, int pos, boolean upper)
Puts the given char to upper (true) or lower (false) case 
if (pos < 0 || pos >= string.length()) {
    throw new StringIndexOutOfBoundsException(pos);
String ret = string.substring(0, pos);
if (upper) {
    ret += string.substring(pos, pos + 1).toUpperCase();
} else {
    ret += string.substring(pos, pos + 1).toLowerCase();
...