luohzzz

导航

objects类

![在这里插入图片描述](https://img-blog.csdnimg.cn/img_convert/30f832863ee2759f809b7d2dd75ca5cf.png#pic_center)
![在这里插入图片描述](https://img-blog.csdnimg.cn/img_convert/482cc2c1b613caf10abb118be58dfa95.png#pic_center)
![在这里插入图片描述](https://img-blog.csdnimg.cn/img_convert/e8922ccbfc928dcb09713575c83186fc.png#pic_center)
![在这里插入图片描述](https://img-blog.csdnimg.cn/img_convert/547d5d7209edabaf2b1193063e5ccf13.png#pic_center)
![在这里插入图片描述](https://img-blog.csdnimg.cn/img_convert/0b7f1c041036324436af41f7d4378a2e.png#pic_center)
```java
package Demo1;

import java.util.Objects;

public final class getClass {
private String name;
private int age;
// TODO Auto-generated constructor stub


public getClass(String name, int age) {
this.name = name;
this.age = age;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}

@Override
public String toString() {
return "getClass{" +
"name='" + name + '\'' +
", age=" + age +
'}';
}

@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
getClass getClass = (getClass) o;
return age == getClass.age && Objects.equals(name, getClass.name);
}

@Override
public int hashCode() {
return Objects.hash(name, age);
}
}
package Demo1;

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

//getClass 返回类型

getClass s1 = new getClass("luo",21);
getClass s2 = new getClass("luohz",22);
//判断s1s2是不是同一类型
//getClass

Class class1 = s1.getClass();
Class class2 = s2.getClass();
if (class1==class2){
System.out.println("一样类型");}
else{
System.out.println("不一样类型");}

//hashCode int类型

System.out.println(s1.hashCode());
System.out.println(s2.hashCode());

getClass s3 = s1;
System.out.println(s3);

//toString 字符类型

System.out.println(s1.toString());
System.out.println(s2.toString());

//equals 判断对象是否一致

System.out.println(s1.equals(s2));


getClass s4 = new getClass("luo",20);
getClass s5 = new getClass("luo",20);

System.out.println(s4.equals(s5));//flase 因为s4和s5在推里不同位置

//finalize 处理无用对象
}
}

posted on 2021-05-04 16:29  luohzzz  阅读(42)  评论(0编辑  收藏  举报