// Builtin.java
// Tests the built-in object methods

class Test
{
	int x;
	public Test(int x) { this.x = x; }
}

public class Builtin
{
	public static void main(String[] args)
	{
		Test t1 = new Test(5);
		Test t2 = new Test(5);
		Test t3 = new Test(10);
		// since Test extends Object, it inherits several things:
		// 1. a toString method
		System.out.println("t1: " + t1);
		// 2. an equals method
		if (t1.equals(t2)) 
			System.out.println("t1 == t2");
		else
			System.out.println("t1 != t2");
		if (t1.equals(t3)) 
			System.out.println("t1 == t3");
		else
			System.out.println("t1 != t3");
		// 3. a getClass method
		System.out.println("t1 is " + t1.getClass());	
	}

}