Java this关键字的使用案例详解
程序员文章站
2022-03-01 13:13:08
目录boy类girl类boygirltest类总结通过一个小案例来学习、理解一下this关键字的使用~~~boy类package myjava1;public class boy {private s...
通过一个小案例来学习、理解一下this关键字的使用~~~
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
总结
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