java - Finch Robot - 如何循环特定的代码行？（爪哇）

Question

我对编码完全陌生，不清楚自己在做什么。我有一个 Finch 机器人的代码，它只是让它左右移动，但是我如何使这个简单的过程循环三遍呢？此外，是否可以实现一个代码来询问用户他们希望产品循环多少次？

抱歉，如果这似乎是一个愚蠢的问题。我到处看了看，不太明白如何正确循环代码。我要循环的代码发布在下面。

public static void main(final String[] args)
       {
          Finch myFinch = new Finch();

          myFinch.setLED(Color.green);
          myFinch.setWheelVelocities(180, 0, 750);
          myFinch.setWheelVelocities(100, 100, 1500);

          myFinch.setLED(Color.red);
          myFinch.setWheelVelocities(0, 180, 850);
          myFinch.setWheelVelocities(180, 180, 1500);

          myFinch.quit();
          System.exit(0);
          }             

Answer 1

for循环：https ://docs.oracle.com/javase/tutorial/java/nutsandbolts/for.html

while循环：https ://docs.oracle.com/javase/tutorial/java/nutsandbolts/while.html

读取用户输入：https ://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html

Answer 2

第一种方法：使用 for 循环

 public static void main(final String[] args)
           {
              Finch myFinch = new Finch();
              Scanner sc = new Scanner(System.in);
              System.out.println("How many times?");
              int noOfTimes = sc.nextInt();

            for(int movement=0; movement < noOfTimes; movement++){ 
              myFinch.setLED(Color.green);
              myFinch.setWheelVelocities(180, 0, 750);
              myFinch.setWheelVelocities(100, 100, 1500);

              myFinch.setLED(Color.red);
              myFinch.setWheelVelocities(0, 180, 850);
              myFinch.setWheelVelocities(180, 180, 1500);
           }
              myFinch.quit();
              System.exit(0);
 }

第二种方法：使用while循环

          Scanner sc = new Scanner(System.in);
          System.out.println("How many times?");
          int noOfTimes = sc.nextInt();

  while(noOfTimes > 0){ 

          myFinch.setLED(Color.green);
          myFinch.setWheelVelocities(180, 0, 750);
          myFinch.setWheelVelocities(100, 100, 1500);

          myFinch.setLED(Color.red);
          myFinch.setWheelVelocities(0, 180, 850);
          myFinch.setWheelVelocities(180, 180, 1500);
          noOfTimes--; 

       }

第三种方法：使用 do-while 循环

           Scanner sc = new Scanner(System.in);
          System.out.println("How many times?");
          int noOfTimes = sc.nextInt();

       do{

          myFinch.setLED(Color.green);
          myFinch.setWheelVelocities(180, 0, 750);
          myFinch.setWheelVelocities(100, 100, 1500);

          myFinch.setLED(Color.red);
          myFinch.setWheelVelocities(0, 180, 850);
          myFinch.setWheelVelocities(180, 180, 1500);
          noOfTimes--; 

       }while(noOfTimes > 0);