Java this关键字的使用方法有哪些

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Boy类

package myjava1;public class Boy {        private String name;        private int age;        public Boy() {                }        public Boy(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;        }        public void marry(Girl girl) {                System.out.println(this.name+ " 也想娶：" + girl.getName());        }        public void shout() {                if(this.age >= 22) {                        System.out.println("可以了");                }else {                        System.out.println("不可以");                }        }}

Girl类

package myjava1;public class Girl {        private String name;        private int age;        public Girl() {        }        public Girl(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;        }        public void marry(Boy boy) {                System.out.println(this.name + " 想嫁给：" + boy.getName());                boy.marry(this);        }        public void compare(Girl girl) {                if(this.age > girl.getAge()) {                        System.out.println(this.getName() + "比" + girl.getName() + "大");                }else if(this.age < girl.getAge()) {                        System.out.println(this.getName() + "比" + girl.getName() + "小");                }else {                        System.out.println(this.getName() + "和" + girl.getName() + "一样大");                }        }}

BoyGirlTest类

package myjava1;public class BoyGirlTest {        public static void main(String[] args) {                Boy boy = new Boy("罗密欧",21);                boy.shout();                Girl girl = new Girl("朱丽叶",18);                girl.marry(boy);                Girl girl2 = new Girl("祝英台",19);                girl2.compare(girl);                girl.compare(girl2);                girl2.compare(girl2);        }}

运行结果

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