Java tutorial
public class Main { public static void main(String[] args) { Integer intObj = new Integer("10"); byte b = intObj.byteValue(); System.out.println(b); short s = intObj.shortValue(); System.out.println(s); int i = intObj.intValue(); System.out.println(i); float f = intObj.floatValue(); System.out.println(f); double d = intObj.doubleValue(); System.out.println(d); } }