BankThread

class BankThread
{
    public static void main(String[] args)
    {
        Bank obj = new Bank();
        Withdrwal t1 = new Withdrwal(obj,"A1",5000); //5000
        Deposit t2 = new Deposit(obj,"A2",2000); // 7000
        Withdrwal t3 = new Withdrwal(obj,"A3",8000); // error
        Deposit t4 = new Deposit(obj,"A4",1000); // 8000
        Withdrwal t5 = new Withdrwal(obj,"A5",8000); // 0
        Deposit t6 = new Deposit(obj,"A6",2000); // 2000
        t1.start();
        t2.start();
        t3.start();
        t4.start();
        t5.start();
        t6.start();
    }
}
class Bank
{
    int balance = 10000;
    synchronized void withdrawn(String name,int withdrawal)
    {
        if (balance >= withdrawal)
        {
            System.out.println(name + " withdrawn " + withdrawal);
            balance = balance - withdrawal;
            System.out.println("Balance after withdrawal: " + balance);
            try
            {
                Thread.sleep(1000);
            }
            catch (Exception e) {   }

        }
        else
        {
            System.out.println(name + " you can not withdraw " + withdrawal);
            System.out.println("your balance is: " + balance);
            try
            {
                Thread.sleep(1000);
            }
            catch (Exception e) {  }
        }
    }
    synchronized void deposit(String name, int deposit)
    {
        System.out.println(name + " deposited " + deposit);
        balance = balance + deposit;
        System.out.println("Balance after deposit: " + balance);
        try
        {
            Thread.sleep(1000);
        }
        catch (Exception e) {  }
    }
}
class Withdrwal extends Thread
{
    Bank object;
    String name;
    int amt;

    Withdrwal(Bank ob, String name,int money)
    {
        this.object = ob;
        this.name = name;
        this.amt = money;
    }
    public void run()
    {
        object.withdrawn(name,amt);
    }
}
class Deposit extends Thread
{
    Bank object;
    String name;
    int amt;
    Deposit(Bank ob, String name,int money)
    {
        this.object = ob;
        this.name = name;
        this.amt = money;
    }
    public void run()
    {
        object.deposit(name,amt);
    }
}