新人笔记-私有及其使用

public class Student02 {
    private String name;
    private int age;
    public void setName(String n){
        name = n;
    }
    public String getName(){
        return name;
    }
    public void setAge(int a){
        age = a;
    }
    public int getAge(){
        return age;
    }
    public void show(){
        System.out.println(name + "," +age);
    }
}

public class Student02Demo {
    public static void main(String[] args) {
        Student02 s =new Student02();
        s.setName("徐凤年");
        s.setAge(18);
        s.show();
        //使用get方法输出
        System.out.println(s.getName() + "," +s.getAge());
    }
}