클래스) 상속의 상화관계 이해를 위한 "색깔점" 예제

package answer;

class Point{
	   int x;
	   int y;
	   void move(int x) {
	      this.x=x;
	      this.y=x;
	   }
	   void showInfo() {
	      System.out.println("("+this.x+","+this.y+")");
	   }
	   Point(){
	      this(0,0);
	   }
	   Point(int x){
	      this(x,x);
	   }
	   Point(int x,int y){
	      this.x=x;
	      this.y=y;
	   }
	}
	class ColorPoint extends Point{
	   String color;
	   void cc(String color) {
	      this.color=color;
	   }
	   void showInfoColorPoint() {
	      System.out.println(this.color+"("+this.x+","+this.y+")");
	   }
	   ColorPoint(){
	      this("black",0,0);
	   }
	   ColorPoint(String color){
	      this(color,0,0);
	   }
	   ColorPoint(String color,int x,int y){
	      super(x,y);
	      this.color=color;
	   }
	}
	public class Test08 {

	   public static void main(String[] args) {
	      

	   }

	}