Java面向对象static（静态）

public class StaticDemo {
  //成员变量
      String name = "yangyang";
   static int age= 20;//静态成员变量    static修饰归属于类

    //构造器
    public StaticDemo(String name,int age){
        this.name = name;
        this.age = age;
    }


    public void test1(){
        System.out.println("test1 非静态");
        test2();
    }
     public static void test2(){
        System.out.println("test2 is a static method");
    }

    public static void main(String[] args) {
        StaticDemo sd = new StaticDemo("壮",16);
        System.out.println(sd.name);
        System.out.println(sd.age);
      

       //StaticDemo staticDemo = new StaticDemo();
      // staticDemo.test1();
       // StaticDemo.test2();
        sd.test1();
    }
}