addshapescommand.java

面向对象的设计思想

import java.awt.Shape;
public class AddShapesCommand extends Command {
	SubShape shape;
  
  public AddShapesCommand(SubShape shape) {
   this.shape = shape;
  }

  public void execute(DrawModel draw) {
    try {
    	draw.addShapes(shape);
    }
    catch (Exception ex) {
      this.excep = ex;
    }
  }
}