将Java程序转换为面向对象格式（Basic）

我是一名Java程序员初学者，已经为此付出了相当长的时间。我需要将下面的程序转换成OOP格式，并且不能让它无误地编译。我想我会发布正在运行的非格式化程序，而不是失败的、断断续续的尝试。如果有人能将下面的程序转换成OOP，我们将不胜感激。请原谅任何低效或草率，因为我是新手

谢谢你的帮助

import java.awt.*;

public class Turtle3 {

  public static void drawLine(Turtle myrtle, Color color, int x1, int y1, int x2, int y2) {
    myrtle.hide();
    myrtle.penUp();
    myrtle.setPenColor(color);
    myrtle.moveTo(x1, y1); 
    myrtle.penDown(); 
    myrtle.moveTo(x2, y2);  
  }

  public static void setPenWidth(int w) {
    World worldObj = new World(); 
    Turtle myrtle = new Turtle(200, 200, worldObj); 
    Turtle billy = new Turtle(100, 700, worldObj);
    Turtle thomas = new Turtle(100, 100, worldObj);
    myrtle.setColor(Color.RED);
    myrtle.setPenWidth(50);
    myrtle.forward(50);
    myrtle.show();
    billy.setColor(Color.BLUE);
    billy.setPenWidth(100);
    billy.forward(300);
    thomas.show();
    thomas.setColor(Color.BLACK);
    thomas.setPenWidth(100);
    thomas.forward(50);
    thomas.show();
  };

  public static void main(String[] args) {      
    World worldObj = new World();
    Turtle myrtleTheTurtle = new Turtle(0, 0, worldObj); 

    drawLine(myrtleTheTurtle, Color.RED, 10, 20, 700, 20);      
    drawLine(myrtleTheTurtle, Color.BLUE, 10, 40, 700, 40);
    drawLine(myrtleTheTurtle, Color.BLACK, 10, 60, 700, 60);              
    drawLine(myrtleTheTurtle, Color.BLACK, 10, 80, 700, 80);
    drawLine(myrtleTheTurtle, Color.BLACK, 10, 100, 700, 100);
    drawLine(myrtleTheTurtle, Color.RED, 10, 120, 700, 120);      
    drawLine(myrtleTheTurtle, Color.BLUE, 10, 140, 700, 140);
    drawLine(myrtleTheTurtle, Color.BLACK, 10, 160, 700, 160);              
    drawLine(myrtleTheTurtle, Color.BLACK, 10, 180, 700, 180);
    drawLine(myrtleTheTurtle, Color.BLACK, 10, 200, 700, 200);
    drawLine(myrtleTheTurtle, Color.RED, 10, 220, 700, 220);      
    drawLine(myrtleTheTurtle, Color.BLUE, 10, 240, 700, 240);
    drawLine(myrtleTheTurtle, Color.RED, 10, 260, 700, 260);      
    drawLine(myrtleTheTurtle, Color.BLUE, 10, 280, 700, 280);
    drawLine(myrtleTheTurtle, Color.BLACK, 10, 300, 700, 300);              
    drawLine(myrtleTheTurtle, Color.BLACK, 10, 320, 700, 320);
    drawLine(myrtleTheTurtle, Color.BLACK, 10, 340, 700, 340);
    drawLine(myrtleTheTurtle, Color.RED, 10, 360, 700, 360);      
    drawLine(myrtleTheTurtle, Color.BLUE, 10, 380, 700, 380);
    drawLine(myrtleTheTurtle, Color.BLACK, 10, 400, 700, 400);              
    drawLine(myrtleTheTurtle, Color.BLACK, 10, 420, 700, 420);
    drawLine(myrtleTheTurtle, Color.BLACK, 10, 440, 700, 440);
    drawLine(myrtleTheTurtle, Color.BLUE, 10, 460, 700, 460);
    drawLine(myrtleTheTurtle, Color.BLACK, 10, 480, 700, 480);
    drawLine(myrtleTheTurtle, Color.BLACK, 480, 10, 480, 700);
    drawLine(myrtleTheTurtle, Color.BLACK, 180, 10, 180, 700);
    drawLine(myrtleTheTurtle, Color.BLACK, 480, 10, 480, 700);
    drawLine(myrtleTheTurtle, Color.BLACK, 330, 10, 330, 700);

    setPenWidth(50);  
  }//end of main method
}//end of class

---

我不太清楚你在问什么。您已经在

setPenWidth（）

方法中使用OOP。如果您想在程序中使用更多OOP，可能需要将方法

drawLine（）

移动到

Turtle

类，并将其更改为

public void drawLine(Color color, int x1, int y1, int x2, int y2)
{
    this.hide();
    this.penUp();
    this.setPenColor(color);
    this.moveTo(x1, y1); 
    this.penDown(); 
    this.moveTo(x2, y2);  
}

---

它引用

Turtle

的当前实例，无需将其作为参数传递。注意：您必须删除static关键字才能使其工作。然后，您必须更改main方法中的代码，通过将调用从

drawLine（myrtleTheTurtle，color，x1，y1，x2，y2）更改为
drawLine（）

to

myrtleTheTurtle.drawLine（颜色，x1，y1，x2，y2）

我不确定您所说的“想将您的方法drawLine（）移动到Turtle类”是什么意思因为它已经和其他东西一起在那个类中了。找不到符号-方法隐藏这是我在用你的指令运行程序时遇到的错误。你所有的东西都在Turtle3类中。我想把它移到“海龟”类，它定义了海龟的类型，比如桃金娘、比利和托马斯