intとintegerの比較

package com.test;

public class TestInteger {


    /**
     * @param args
     */
    public static void main(String[] args) {
        int i = 128;
        Integer i2 = 128;
        Integer i3 = new Integer(128);
        //Integer      int，   true
        System.out.println(i == i2);
        System.out.println(i == i3);
        System.out.println("**************");
        Integer i5 = 127;//java      ,    -> Integer i5 = Integer.valueOf(127);
        Integer i6 = 127;
        System.out.println(i5 == i6);//true
        /*Integer i5 = 128;
        Integer i6 = 128;
        System.out.println(i5 == i6);//false
*/        Integer ii5 = new Integer(127);
        System.out.println(i5 == ii5); //false
        Integer i7 = new Integer(128);
        Integer i8 = new Integer(123);
        System.out.println(i7 == i8);  //false
    }


}