10.12
基类的equals()方法练习:
代码部分:
package lianxi;
public class bo {
public static void main(String[] args) { MyTestClass obj1=new MyTestClass(100);
MyTestClass obj2=new MyTestClass(100);
System.out.println(obj1==obj2);
System.out.println(obj1.equals(obj2));
}
}
class MyTestClass{
public int Value;
//注意:只有参数类型为Object的,才是重写了Object的equals方法
//参数类型为MyTestClass的,仅仅是Overload了equals方法。
// @Override // public boolean equals(Object obj)
// {
// return ((MyTestClass)obj).Value==this.Value;
// }
public boolean equals(MyTestClass obj)
{
return obj.Value==this.Value;
} public MyTestClass(int initValue)
{
Value=initValue;
}}
运行结果: