public class Test {

    public static void main(String[] args) {
        Integer i1 = new Integer(123);
        Integer i2 = 123;

        int i = 123;

        System.out.println(i1 == i2);
        System.out.println(i == i1);
        System.out.println(i == i2);
    }
}

// out
false
true
true