java 判断两个对象是否为同一个对象实例代码

public class Test5 {  public static void main(String[] args) {    User mUser1 = new User("zhangsan", "123456");    User mUser = new User("zhangsan", "123456");    System.out.println(mUser == mUser1);    System.out.println(mUser.equals(mUser1));  }}class User {  String name = "";  String pwd = "";  @Override//重写父类的equals方法  public boolean equals(Object obj) {    if (obj instanceof User) {      User mUser = (User) obj;      if (mUser.name.equals(name)&&mUser.pwd.equals(pwd)) {        return true;      }    }    return super.equals(obj);  }  public User(String name, String pwd) {    super();    this.name = name;    this.pwd = pwd;  }}