This is what I wrote.

```
public class Test {
    public static void main(String[] args) {
        Object a1 = new A();
        Object a2 = new Object();

        System.out.println(a1.toString());

        System.out.println((a1 == a2) + " " + (a1.equals(a2)));
    }
}

class A {
    int x;

    public boolean equals(Object obj) {
        A _obj = (A) obj;
        return x == _obj.x;
    }

    public String toString() {
        return "A's x is " + x;
    }
}

```

How can I make 'false true' on the console? Except revising the main method. Revise only A method.
I tried to make change the Object a2 to an a2. How Can I change that in the A class?