app5_1.java

有大量的java的实例

package pack1;
class Circle {   //Circle类被纳入pack1包中
  public void show() {
    System.out.println("how() method called");
  }
}
public class app5_1 {  //app5_1类也被纳入pack1包中
  public static void main(String[] args){
    Circle cir=new Circle();
    cir.show();
  }
}