Java Utililty Methods Object Type Case

List of utility methods to do Object Type Case

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Description

The list of methods to do Object Type Case are organized into topic(s).

Method

TcastAs(Class clazz, Object obj)
cast As 
if (obj == null) {
    return null;
try {
    if (clazz.isInstance(obj)) {
        return clazz.cast(obj);
} catch (ClassCastException ex) {
...
double[]castAsDoubleArray(int[] input)
cast As Double Array 
double[] output;
output = new double[input.length];
for (int i = 0; i < input.length; i++) {
    output[i] = (double) input[i];
return output;
ClasscastClass(Class aClass)
cast Class 
return (Class<T>) aClass;
UcastClone(U obj, T superClone)
cast Clone 
@SuppressWarnings("unchecked")
U clone = (U) superClone;
return clone;
TcastEnum(Enum enum_param)
This method just is a workaround such that maven can compile and do not proclaim when an enum is directly casted! 
return (T) enum_param;
UcastEnum(T from, U[] to)
cast Enum 
return to[from.ordinal()];
StringcastForRegex(String textContent)
cast For Regex 
return textContent.replace("\\", "\\\\").replace("/", "\\/").replace("*", "\\*").replace("+", "\\+")
        .replace(".", "\\.").replace("?", "\\?").replace(")", "\\)").replace("{", "\\{").replace("}", "\\}")
        .replace("(", "\\(").replace("[", "\\[").replace("]", "\\]").replace("%", "\\%");
StringcastingNum(double n)
utility 
if (Math.ceil(n) == Math.floor(n)) {
    return ("" + (int) n);
} else {
    return "" + n;
ObjectcastingUtil(String value, Class classCasting)
casting Util 
Object object = value;
if (Number.class.isAssignableFrom(classCasting)) {
    if (classCasting.isAssignableFrom(Double.class)) {
        return Double.valueOf(value);
    } else if (classCasting.isAssignableFrom(Long.class)) {
        return Long.valueOf(value);
    } else if (classCasting.isAssignableFrom(Float.class)) {
        return Float.valueOf(value);
...
TcastInstance(Object o, Class clazz)
cast Instance 
try {
    return clazz.cast(o);
} catch (ClassCastException e) {
    throw new IllegalArgumentException(e);