[JAVA] 메소드 오버라이딩

이클립스

알트 쉬프트 에스 override/implement methods

class Shape{
	void draw() {
		System.out.println("Shape");
	}
}

class Line extends Shape{
	@Override
	void draw() {
		System.out.println("Line");
	}
}

class Rect extends Shape{
	@Override
	void draw() {
		System.out.println("Rect");
	}
}

class Circle extends Shape{
	@Override
	void draw() {
		System.out.println("Circle");
	}
}

public class MethodOverEx {
	static void paint(Shape s){
		s.draw();
	}
	public static void main(String[] args) {
		paint(new Shape());
		paint(new Line());
		paint(new Rect());
		paint(new Circle());
	}
}

class Shape{
	String name;
	void paint() {
		draw();
	}
	void draw() {
		System.out.println(name);
	}
}

class Circle extends Shape{
	String name;

	@Override
	void draw() {
		name = "Circle";
		super.name = "Shape";
		System.out.println(name);
	}
	
}

public class SuperEx {
	public static void main(String[] args) {
		Shape s = new Circle();	//업캐스팅
		s.paint();
	}
}