学习Java (五)
1.学习封装
package com.msb.test07; //封装 public class Girl { private int age; // 赋值 public void setAge(int age){ if(age > 30){ this.age = 18; }else{ this.age = age; } } // 读取 public int getAge(){ return age; } }
package com.msb.test07; public class Test { public static void main(String[] args) { Girl girl = new Girl(); girl.setAge(28); System.out.println(girl.getAge()); } }
原文地址:https://blog.csdn.net/m0_50519996/article/details/142589758
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