PassOb.java

package chapter7;

//Objects may be passed to methods..
class Test {

    int a, b;

    Test(int i, int j) {
        a = i;
        b = j;
    }

    //Return true if o is equal to the invoking object
    boolean equalTo(Test o) {
        if (o.a == a && o.b == b) {
            return true;
        } else {
            return false;
        }
    }


}

public class PassOb {
    public static void main(String[] args) {

        Test ob1 = new Test(100, 22);
        Test ob2 = new Test(100, 22);
        Test ob3 = new Test(-1, -1);

        System.out.println(" ob1 == ob2 : " + ob1.equalTo(ob2));
        System.out.println(" ob1 == ob3 : " + ob1.equalTo(ob3));
        System.out.println(" ob2 == ob3 : " + ob2.equalTo(ob3));


    }
}