Simple way to get wrapper class type in Java

Question

I have a piece of code where I need to pass the class of a field in a method. Because of the mechanics of my code I can only handle reference objects and not primitives. I w

Answer 1

Class toWrapper(Class clazz) {
    if (!clazz.isPrimitive())
        return clazz;

    if (clazz == Integer.TYPE)
        return Integer.class;
    if (clazz == Long.TYPE)
        return Long.class;
    if (clazz == Boolean.TYPE)
        return Boolean.class;
    if (clazz == Byte.TYPE)
        return Byte.class;
    if (clazz == Character.TYPE)
        return Character.class;
    if (clazz == Float.TYPE)
        return Float.class;
    if (clazz == Double.TYPE)
        return Double.class;
    if (clazz == Short.TYPE)
        return Short.class;
    if (clazz == Void.TYPE)
        return Void.class;

    return clazz;
}