package edu.xcdq;
/*
类的封装
1 成员变量必须私有化 private修饰
2 使用getter setter 提供对外的访问方式
*/
public class Demo {
private String name;
private int age;
//设置值 setter
public void setName(String name) {
this.name = name;
}
//获取值 getter
public String getName() {
return this.name;
}
public void setAge(int age) {
this.age = age;
}
public int getAge() {
return this.age;
}
}
测试
package edu.xcdq;
public class testDemo {
public static void main(String[] args) {
/Demo demo = new Demo();
demo.name = "小明";
demo.age = 99 ;
System.out.println(demo.name);
System.out.println(demo.age);/
Demo demo = new Demo();
demo.setName("小明");
demo.setAge(19);
System.out.println(demo.getName());
System.out.println(demo.getAge());
}
}
