getp1ycommand.java

面向对象的设计思想

public class GetP1yCommand extends Command {
  
  public GetP1yCommand() {
    
  }

  public void execute(DrawModel draw) {
    try {
      result = draw.getP1y();
      
      }
    catch (Exception ex) {
      this.excep = ex;
    }
  }
}