即使在Java中断后,线程也会继续打印RAM使用情况

我正在为一个学校项目开发Java程序,在该项目中,我使用独立的线程来监控各种系统资源。然而,我面临的问题是 RAMMonitor 线甚至在呼叫之后 interrupt() 方法,并等待线程加入,它将无限期地继续打印RAM使用情况。

---主要代码---

public class MonitoringResources {
    // Initialize Monitors and Threads //
    private final RAMMonitor monitor_RAM = new RAMMonitor();
    private Thread thread_RAM = new Thread(monitor_RAM);

    public MonitoringResources() {}  // Constructor
    
    public void startMonitoring() {  // Start methods
        thread_RAM.start();
    }
    
    public void interruptMonitoring() {  // Interrupt
        thread_RAM.interrupt();
        
        try {  // Wait for the RAM thread to stop
            thread_RAM.join();
        } catch (InterruptedException e) {
        }
    }
    
    public static void main(String[] args) {
        MonitoringResources mr = new MonitoringResources();
        mr.startMonitoring();       // Start monitoring
        
        // Monitoring for 10 seconds //
        try {
            Thread.sleep(10000);
        } catch (InterruptedException e) {
        }
        
        mr.interruptMonitoring();   // Monitor interrupt
        
        System.out.println("Monitoring terminated.");
    }
}

---RAM监视器---

public class RAMMonitor implements Runnable {
    private volatile boolean isRunning = true;

    @Override
    public void run() {
        while (isRunning) {
            long usedMemory = getUsedMemory();
            long totalMemory = getTotalMemory();
            double memoryUsage = (double) usedMemory / totalMemory * 100;

            System.out.println("RAM Usage -----> " + (int) memoryUsage + "%");
            try {
                Thread.sleep(1000); // Monitoring per second
            } catch (InterruptedException e) { // Sleep Exception
                Thread.currentThread().interrupt();
            }
        }
    }

    private long getUsedMemory() {
        Runtime runtime = Runtime.getRuntime();
        return runtime.totalMemory() - runtime.freeMemory();
    }
    private long getTotalMemory() {
        Runtime runtime = Runtime.getRuntime();
        return runtime.totalMemory();
    }
    public void interrupt() {
        isRunning = false;
    }
}

我正在使用 打断 方法来停止线程并等待其加入,然后再结束程序。然而,即使在 打断 呼叫是什么原因导致了这种行为,我如何确保线程按预期停止?

我曾试图通过将join()调用移到interruptionMonitoring()之外来修改主方法,但问题仍然存在,RAM使用情况继续无限期重复。