Require output to 2 decimal places

[Maureen Charlton]

I'm confused

I have just been reading about Implicit Conversions.

It states:
"If one of the operands is a double then the other operand is converted to a double."

So, I have a method:

      //method to allow the contents of balance to change to store a different value, if required
      public void setBalance (double newBalance)
      {
          
          this.newBalance = newBalance;
      }//end method setBalance

- with the respective getBalance method

At the top of my class are the member variables which include:
private double newBalance;

I then implement this....... or at least try...........

my TestClass file has the following line of code:

        bankAccount.dispDetails( );

which calls the dispDetails method:

      //method to display details to screen
      public void dispDetails ( )
      {
          System.out.println("\nCurrent Account details for:");
          System.out.println("****************************");
          System.out.println(getAccName( ) + " : Account No:  "+ getAccNo( )+"\tBalance:  �"+getBalance( ) );
      }//end method dispDetails

Andy my output on the screen is:
Current Account details for:
****************************
Maureen Charlton : Account No: 3456 Balance: 0.0

What I wish to have is: Balance: 0.00

How do I manage to do this?

When I input the amount i.e. deposit say, as �2.11
I actually get Balance 2.11

[Steven Bell]

The double isn't going to show the extra 0 because it doesn't need it. You will have to add it (after making the double a String). You might want to look at the BigDecimal class. It might make your life a little easier.

[Prashanth Lingala]

Try this,

import java.text.DecimalFormat;

Now in your code, in main()...

DecimalFormat twoDecimal = new DecimalFormat("0.00");

now...try this,

System.out.println(twoDecimal.format(getBalance());

This should work...

[Maureen Charlton]

Steven Bell and Prashanth Lingala:

Many thanks for your posts. Worked!

          //display Decimal format to two places
          DecimalFormat twoDecimal = new DecimalFormat ("0.00");
          System.out.println("This is the decimal format to two places:  "+twoDecimal.format(getBalance( ) ) );
 
          //use BigDecimal to deal with finances
          BigDecimal amount = new BigDecimal (getBalance( ) );
          System.out.println("BigDecimal Amount changed to a String for display:  "+amount.toString( ) );