Java Utililty Methods String to

int result = 0;
for (int i = 0; i < value.length(); i++) {
    result = result * LETTER_BASE + value.charAt(i) - firstCharacter;
return result;

return obj == null ? nullTo : obj.toString();

char[] ch = label.toCharArray();
StringBuffer buf = new StringBuffer();
for (int i = 0; i < ch.length; i++) {
    switch (ch[i]) {
    case '\n':
        buf.append("\\n");
        break;
    case '\r':
...

if (s == null) {
    return "";
return s;

if (cls == Integer.class) {
    return Integer.valueOf(s);
} else if (cls == String.class) {
    return s;
} else {
    throw new IllegalArgumentException("Don't know how to convert string to " + cls.getName());

return (strValue == null || strValue.equals("")) ? "" : strValue;

if (type.equals(Long.class))
    return (T) Long.valueOf(value);
if (type.equals(Double.class))
    return (T) Double.valueOf(value);
if (type.equals(Integer.class))
    return (T) Integer.valueOf(value);
if (type.equals(Boolean.class))
    return (T) Boolean.valueOf(value);
...

byte[] result = new byte[str.length()];
for (int i = 0; i < str.length(); i++) {
    result[i] = (byte) str.charAt(i);
return result;

str = str.replace("\"", "\\\"").replace("\n", "\\\n"); 
StringBuffer ostr = new StringBuffer();
for (int i = 0; i < str.length(); i++) {
    char ch = str.charAt(i);
    if ((ch >= 0x0020) && (ch <= 0x007e)) {
        ostr.append(ch);
    } else {
        ostr.append("\\u"); 
...

if (num != null) {
    float fArray[] = new float[num.length];
    for (int i = 0; i < num.length; i++) {
        fArray[i] = Float.parseFloat(num[i]);
    return fArray;
return null;
...