Java Utililty Methods String Value Of

List of utility methods to do String Value Of

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Description

The list of methods to do String Value Of are organized into topic(s).

Method

BooleanvalueOfBoolean(final String s)
value Of Boolean 
return Boolean.valueOf(parseBoolean(s));
intvalueOfBoolean(String string)
Convert a Sting 'TRUE' to 1, otherwise 0. 
return string != null && "TRUE".equalsIgnoreCase(string) ? 1 : 0;
BooleanvalueOfBooleanStr(String str)
value Of Boolean Str 
return (Boolean.TRUE.equals(Boolean.valueOf(str)) || str.equalsIgnoreCase("yes"));
EvalueOfEnum(Class enumClass, String value, E defaultValue)
value Of Enum 
try {
    if (value != null) {
        return Enum.valueOf(enumClass, value);
} catch (Exception e) {
return defaultValue;
TvalueOfEnum(final Class type, final String value)
Find the enum value of the given enum type with the given identifier (name). 
return Enum.valueOf(type, value);
TvalueOfIC(Class enumType, String aName)
Returns an enum for enum class and string, ignoring case. 
for (T value : enumType.getEnumConstants())
    if (value.toString().equalsIgnoreCase(aName))
        return value;
if (aName == null)
    throw new NullPointerException("Name is null");
throw new IllegalArgumentException("No enum const " + enumType + "." + aName);
EvalueOfIgnoreCase(Class cls, String value)
value Of Ignore Case 
for (E e : cls.getEnumConstants()) {
    if (e.toString().equalsIgnoreCase(value))
        return e;
throw new IllegalArgumentException(String.format("Unknown enum.value: ", value));
TvalueOfIgnoreCase(Class enumType, String constantName)
Works like #valueOf(Class,String) but ignores case. 
T[] constants = enumType.getEnumConstants();
if (constants == null) {
    return null;
for (T constant : constants) {
    if (constant.name().equalsIgnoreCase(constantName)) {
        return constant;
return null;
IntegervalueOfInteger(final String s, int radix)
value Of Integer 
return Integer.valueOf(parseInt(s));
longvalueOfIpv4(String ip)
value Of Ipv 
long ret = 0;
String[] p = ip.split("\\.");
ret += Long.parseLong(p[0]) << 24;
ret += Long.parseLong(p[1]) << 16;
ret += Long.parseLong(p[2]) << 8;
ret += Long.parseLong(p[3]);
return ret;