?
Solved

Formating float output in a gui textfield

Posted on 2007-04-05
6
Medium Priority
?
228 Views
Last Modified: 2010-03-31
Hi Experts,
Just a quick one. I have a banking system that i am programming for an assignment, output is via a GUI, i have everything working ut am not happy with the output of float values, i am outputing in 4 dp when i only want 2 dp. Can you help, 200 points fo a quick answear the relevant code is below

private void displayAccountDetails()
        {
            currentSelectedCustomer = branch.getCustomerAt(customerComboBox.getSelectedIndex());
            balanceTextField.setText("");
          limitTextField.setText("");
            interestTextField.setText("");
          //depending on the account type....
          if(accountTypeComboBox.getSelectedIndex() == 0)
            {
               
              CreditCardAccount acc = currentSelectedCustomer.getCreditCardAccount();
            accountNumberTextField.setText(acc.getAccNumber());
            balanceTextField.setText(""+acc.getBalance());
            limitTextField.setText("Limit: " + acc.getLimit());
                interestTextField.setText("Rate: " + acc.getCreditCardRate());
          }
          else
              if(accountTypeComboBox.getSelectedIndex() == 1)
                {
                CurrentAccount acc = currentSelectedCustomer.getCurrentAccount();
                accountNumberTextField.setText(acc.getAccNumber());
                balanceTextField.setText(""+acc.getBalance());
                limitTextField.setText("Limit: " + acc.getLimit());
            }
          else
              if(accountTypeComboBox.getSelectedIndex() == 2)
                {
                SavingsAccount acc = currentSelectedCustomer.getSavingsAccount();
                accountNumberTextField.setText(acc.getAccNumber());
                balanceTextField.setText(""+acc.getBalance());
                interestTextField.setText("Rate: " + acc.getSavingsRate());
            }
      }

and the source for the balance

 //get account details
    public float getBalance() //selector method
    {
        return accBalance;
    }

Thanks in advance
0
Comment
Question by:manuman1968
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
6 Comments
 
LVL 30

Expert Comment

by:Mayank S
ID: 18861374
>> Formating float output

Define the field as a double, not a float.

http://www.exampledepot.com/egs/java.text/FormatNum.html
0
 

Author Comment

by:manuman1968
ID: 18861633
Sorry but thats completely lost me as a newcomer, any chance of showing me an example of code.
Thanks
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 
LVL 5

Accepted Solution

by:
tbboyett earned 2000 total points
ID: 18861644
It would be something like this.  You can set the DecimalFormat to what ever you want the number to look like.

DecimalFormat df = new DecimalFormat("###.00");
double mynumber = 245.4444;
TextField.setText(df.format(mynumber));
0
 
LVL 5

Expert Comment

by:tbboyett
ID: 18861647
don't forget to do the import, i believe it's java.text.

import java.text.*;
0
 

Author Comment

by:manuman1968
ID: 18861701
Thanks that works
0

Featured Post

Get 15 Days FREE Full-Featured Trial

Benefit from a mission critical IT monitoring with Monitis Premium or get it FREE for your entry level monitoring needs.
-Over 200,000 users
-More than 300,000 websites monitored
-Used in 197 countries
-Recommended by 98% of users

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis. Java Flight Recorder is a profiling and event collectio…
Java functions are among the best things for programmers to work with as Java sites can be very easy to read and prepare. Java especially simplifies many processes in the coding industry as it helps integrate many forms of technology and different d…
Viewers will learn about the different types of variables in Java and how to declare them. Decide the type of variable desired: Put the keyword corresponding to the type of variable in front of the variable name: Use the equal sign to assign a v…
How to fix incompatible JVM issue while installing Eclipse While installing Eclipse in windows, got one error like above and unable to proceed with the installation. This video describes how to successfully install Eclipse. How to solve incompa…
Suggested Courses
Course of the Month14 days, 5 hours left to enroll

800 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question