Top Most Java 5 New Feature AutoBox UnBox

package com.myapp.test;

public class AutoBox_UnBox {
    public static void main(String[] args) {
        // Java 1.4
        Integer intObject = new Integer(123);
        int intPrimitive = intObject;
        // After Java 1.4 that is in Java 1.5
        double doublePrimitive = 123.45;
        Double doubleObject = doublePrimitive;
    }
}