Deadlock sample

Deadlock.java

package banco;

import java.io.File;

public class Deadlock {

    public static File arquivo1 = new File("arquivo1.txt");

    public static File arquivo2 = new File("arquivo2.txt");

    public static void main(String[] args) {

        new Thread(new Runnable() {
            public void run() {

                synchronized (arquivo1) {

                    System.out.println("Thread 1 ­ Adquiriu arquivo 1");

                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                    }
                    synchronized (arquivo2) {
                        try {
                            Thread.sleep(1000);
                        } catch (InterruptedException e) {
                        }
                        System.out.println("Thread 1 ­ Adquiriu arquivo 2");
                        System.out.println("Thread 1 executou");
                    }
                }
            }
        }).start();

        new Thread(new Runnable() {
            public void run() {

                synchronized (arquivo2) {

                    System.out.println("Thread 2 ­ Adquiriu arquivo 2");

                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                    }
                    synchronized (arquivo1) {

                        System.out.println("Thread 2 ­ Adquiriu arquivo 1");
                        System.out.println("Thread 2 executou");

                    }
                }
            }
        }).start();
    }
}