Conversions

• int to String :

  String s = Integer.toString(1
  

• double to currency

  		Scanner scanner = new Scanner(System.in);
          double payment = scanner.nextDouble();
          scanner.close();
    
           
          String us = NumberFormat.getCurrencyInstance(Locale.US).format(payment);
          String india = NumberFormat.getCurrencyInstance(new Locale("en","IN")).format(payment);
          String china = NumberFormat.getCurrencyInstance(Locale.CHINA).format(payment);
          String france = NumberFormat.getCurrencyInstance(Locale.FRANCE).format(payment);
            
          System.out.println("US: " + us);
          System.out.println("India: " + india);
          System.out.println("China: " + china);
          System.out.println("France: " + france);