shape.java

来自「小弟自己复习java时候整理的文档,其中包括基础的面向对象的知识及设计模式相关的」· Java 代码 · 共 68 行

public class Shape
{
	int i = 10;
	public Shape()
	{
		System.out.println("create a new shape");
	}

	public void draw()
	{
		System.out.println("shape drawing");
	}
	
	public void draw(int a)
	{
		System.out.println("shape drawing  abc");
	}

}

class Circle extends Shape
{
	int i = 1000;
	public Circle()
	{
		super();//调用父类的无参数构造方法		
		System.out.println("create a new circle" + super.i);	
		System.out.println("create a new circle" + i);	
	}
	public void draw()
	{
		System.out.println("circle drawing");
	}
    public void test()
	{
		System.out.println("test in Circle");
	}
	public static void main(String[] args)
	{
		Circle c = new Circle();
		/*c.draw();
		System.out.println("-------------");
		Shape s = new Circle();
		//s.draw();
		s.draw(10);
		s.test();*/
	}
}





 /* Employee e1 = new Employee();

  e1.name = Unknown
  e1.salary = 0

  Employee e2 = new Employee("abc");
  e2.name=abc
  e2.salary = 0

  Employee e3 = new Employee("zzz",12);
  e3.name=zzz
  e3.salary=12


*/