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Q) Develop a multithread application that allows to current withdrawals?



A)
class bankAccount
{
       int accno;
       float balance;
       bankAccount( int accno, float balance)
       {
              this.accno=accno;
              this.balance=balance;
       }
       void setbalance(float balance)
       {
              this.balance=balance;
       }
       float getbalance()
       {
              return this.balance;
       }
       void withdraw(float amount)
       {
              System.out.println("trying to withdraw RS:"+amount +"from A/C"+accno);
              System.out.println("try to get the balance info from A/c"+accno);
              for(int i=1;i<20;i++)
                     System.out.println(i);
              float bal=getbalance();
              System.out.println("balance in the A/c"+accno+"is Rs."+bal);
              if(bal>amount)
              {
                     bal=bal-amount;
                     setbalance(bal);
                     System.out.println("please collect Rs: "+amount);
                     System.out.println("balance of A/c"+accno+"ipdate to Rs:"+bal);
              }
              else
              {
                     System.out.println("insufficient funds");
              }
       }
}

class accountthread extends Thread
{
       bankAccount acc;
       float amt;
       accountthread(bankAccount acc, float amt)
       {
              this.acc=acc;
              this.amt=amt;
       }
       public void run()
       {
              acc.withdraw(amt);
       }
}

classmultithreadbankingapplication {

       public static void main(String[] args) throws Exception {
              bankAccount a1= newbankAccount(1001,3000);
              bankAccount a2= newbankAccount(1002,9000);
              accountthread t1= newaccountthread(a1,3000);
              accountthread t2=newaccountthread(a2,5000);
              t1.start();
              t2.start();
              t1.join();
              t2.join();
              System.out.println("final balance in the 1st account Rs"+a1.getbalance());
              System.out.println("final balance in the 2nd account"+a2.getbalance());
       }
}

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