BlockSynchronization.java

class Table
{
    void printTable (int n)
    {
        synchronized (this)
        {
            for (int i=1; i<=5; i++)
            {
                {
                    System.out.println (n*i);
                }
                try
                {
                    Thread.sleep (400);
                }
                catch (Exception e)
                {
                    System.out.println (e);
                }
            }
        }
    }
}
class MyThread1 extends Thread
{
    Table t;
    MyThread1 (Table t)
    {
        this.t = t;
    }
    public void run()
    {
        t.printTable(5);
    }
}
class MyThread2 extends Thread
{
    Table t;
    MyThread2 (Table t)
    {
        this.t = t;
    }
    public void run ()
    {
        t.printTable(100);
    }
}
class Main
{
    public static void main (String args[])
    {
        Table obj = new Table();
        MyThread1 t1 = new MyThread1(obj);
        MyThread2 t2 = new MyThread2(obj);
        t1.start();
        t2.start();
    }
}