برنامه‌نویسی چندنخی در جاوا (Multithreaded Programming)

   class MyRunnable implements Runnable {
       public void run() {
           System.out.println("Thread در حال اجرا است.");
       }
   }

   public class Main {
       public static void main(String[] args) {
           Thread t = new Thread(new MyRunnable());
           t.start();
       }
   }

   class MyThread extends Thread {
       public void run() {
           System.out.println("Thread در حال اجرا است.");
       }
   }

   public class Main {
       public static void main(String[] args) {
           MyThread t = new MyThread();
           t.start();
       }
   }

class MyThread extends Thread {
    private String name;

    public MyThread(String name) {
        this.name = name;
    }

    public void run() {
        for (int i = 1; i <= 3; i++) {
            System.out.println(name + " - گام " + i);
        }
    }
}

public class Main {
    public static void main(String[] args) {
        MyThread t1 = new MyThread("Thread-1");
        MyThread t2 = new MyThread("Thread-2");

        t1.start();
        t2.start();
    }
}

Thread t = new Thread(() -> {
    System.out.println("Thread در حال اجرا است.");
});

System.out.println(t.isAlive()); // خروجی: false

class MyThread extends Thread {
    public void run() {
        for (int i = 1; i <= 3; i++) {
            System.out.println("گام: " + i);
        }
    }
}

public class Main {
    public static void main(String[] args) {
        MyThread t1 = new MyThread();
        t1.start();
        try {
            t1.join();
        } catch (InterruptedException e) {
            System.out.println("Interrupted");
        }
        System.out.println("Thread اصلی تمام شد.");
    }
}

class PriorityDemo extends Thread {
    public void run() {
        System.out.println(getName() + " - با اولویت: " + getPriority());
    }
}

public class Main {
    public static void main(String[] args) {
        PriorityDemo t1 = new PriorityDemo();
        PriorityDemo t2 = new PriorityDemo();

        t1.setPriority(Thread.MAX_PRIORITY);
        t2.setPriority(Thread.MIN_PRIORITY);

        t1.start();
        t2.start();
    }
}

class SharedResource {
    synchronized void printMessage(String message) {
        for (int i = 1; i <= 3; i++) {
            System.out.println(message + " - " + i);
        }
    }
}

public class Main {
    public static void main(String[] args) {
        SharedResource resource = new SharedResource();

        Thread t1 = new Thread(() -> resource.printMessage("Thread-1"));
        Thread t2 = new Thread(() -> resource.printMessage("Thread-2"));

        t1.start();
        t2.start();
    }
}

class SharedResource {
    private int data;
    private boolean isAvailable = false;

    synchronized void produce(int value) {
        while (isAvailable) {
            try {
                wait();
            } catch (InterruptedException e) {
                System.out.println("Interrupted");
            }
        }
        data = value;
        isAvailable = true;
        System.out.println("تولید: " + data);
        notify();
    }

    synchronized int consume() {
        while (!isAvailable) {
            try {
                wait();
            } catch (InterruptedException e) {
                System.out.println("Interrupted");
            }
        }
        isAvailable = false;
        System.out.println("مصرف: " + data);
        notify();
        return data;
    }
}

public class Main {
    public static void main(String[] args) {
        SharedResource resource = new SharedResource();

        Thread producer = new Thread(() -> {
            for (int i = 1; i <= 5; i++) {
                resource.produce(i);
            }
        });

        Thread consumer = new Thread(() -> {
            for (int i = 1; i <= 5; i++) {
                resource.consume();
            }
        });

        producer.start();
        consumer.start();
    }
}