java this关键字

Posted 2023-02-17 DQ_CODING

概念

this调用构造器

案例

package lesson.l11_oop2;

/**
 * Illustration
 *
 * @author DengQing
 * @version 1.0
 * @datetime 2022/7/3 17:11
 * @function
 */
public class Girl 
    private String name;
    private Integer age;

    public Girl() 

    

    public Girl(String name, Integer age) 
        this.name = name;
        this.age = age;
    

    public String getName() 
        return name;
    

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

    public Integer getAge() 
        return age;
    

    public void setAge(Integer age) 
        this.age = age;
    

    public void marry(Boy boy) 
        System.out.println("marry" + boy.getName());
        boy.marry(this);
    

    public int compare(Girl girl) 
        System.out.println("compare" + girl.getName());
       /* if (this.getAge() > girl.getAge()) 
            return 1;
         else if (this.getAge().equals(girl.getAge())) 
            return 0;
         else 
            return -1;
        */
        return this.getAge()- girl.getAge();