JavaSE8基础 ==和equals 比较两个引用类型的变量的地址值是否相同

package jizuiku.eleven302;

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

		Demo d0 = new Demo();//d0指向一个对象
		Demo d1 = new Demo();//d1指向另外一个对象
		Demo d2 = d1;//d0、d1同一个地址的两个名字
		
		System.out.println(d0 == d1);
		System.out.println(d0 == d0);
		System.out.println(d2 == d1);
		
		System.out.println("----------------");
		
		System.out.println(d0.equals(d1));
		System.out.println(d0.equals(d0));
		System.out.println(d2.equals(d1));
		
	}
}

    public boolean equals(Object obj) {
        return (this == obj);
    }