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());}
}
)
