Threads和ArrayIndexOutOfBoundsException

Question

所以我正在学习Java中的线程，并重新访问了我们创建声音的课程中的一个旧课程。每当我运行程序时，我的线程上都会得到一个ArrayIndexOutOfBoundsException：2730。这是我在课堂上的代码

public class ThreadA implements Runnable {
private Thread t;
private String threadName;

public ThreadA(String name) {
    threadName = name;
    System.out.println("Creating " + threadName);
}

public void run() {
    try {
        if(threadName.equalsIgnoreCase("Thread 1")){
           for(int i = 0; i < 2; i++) {
              Beeper.beep(200,800) //this is a call to the Beeper Class, its useless for this examples
            }
          }
        if(threadName.equalsIgnoreCase("Thread 2")){
            for(int i = 0; i < 2; i++) {
                Beeper.beep(233, 800); //line 37, where the error is
            }
        }
    catch (InterruptedException e){
        System.out.println("Thread " + threadName + " interrupted");
    }
      System.out.println("Thread " + threadName + " exiting");
}
 public void start(){
    System.out.println("Starting " + threadName);
    if(t == null){
        t = new Thread(this, threadName);
        t.start();
    }
}

确切的错误是

Exception in thread "Thread 2" java.lang.ArrayIndexOutOfBoundsException: 2730
at Beeper.play(Beeper.java:88)
at Beeper.play(Beeper.java:104)
at Beeper.beep(Beeper.java:275)
at ThreadA.run(ThreadA.java:37)
at java.base/java.lang.Thread.run(Thread.java:844)

警告线：88 - 蜂鸣器：89是

buffer[bufferSize++] = (byte) s;
buffer[bufferSize++] = (byte) (s >> 8);   // little Endian

我明白了。 Beeper类已经创建了数组，第二个线程尝试创建一个新数组。感谢@Ken White的帮助

Answer 1

我所做的只是创建一个新的蜂鸣器子类。

if (threadName.equalsIgnoreCase("Thread 2")) {
            Beeper beep2 = new Beeper1();
            beep2.beep(233, 800);
            beep2.beep(262, 800);
            beep2.beep(294, 800);
            beep2.sleep(1600);
            beep2.beep(233, 800);
            beep2.beep(262, 800);
            beep2.beep(294, 800);
            beep2.beep(294, 400);
            beep2.beep(294, 400);
            beep2.beep(294, 400);
            beep2.beep(294, 400);
            beep2.beep(262, 400);
            beep2.beep(262, 400);
            beep2.beep(262, 400);
            beep2.beep(262, 400);
            beep2.beep(233, 800);
            beep2.beep(262, 800);
            beep2.beep(294, 800);
            Thread.sleep(50);
        }

感谢帮助人员