JOptionPane error...

[Smarteric]

import javax.swing.JOptionPane;
public class MilesPerGallon
{
public static void main(String[] args)
{
String miles;
String gallons;
double MPG;
double miles1, gallons1;

miles=JOptionPane.showInputDialog("Enter the number of miles driven : ");
gallons=JOptionPane.showInputDialog("Enter gallons of gas used : ");

miles1=Double.parseDouble(miles);
gallons1=Double.parseDouble(gallons);

MPG = miles1 / gallons1;

JOptionPane.showMessageDialog(null,"Your Car's Mileage is : " + MPG + "\n");
System.exit(0);
}
}

this returns me a dialog where in I enter 400 then another dialog where in i enter 3.. the result is 133.333333333334 how do i restrict the result to 2 decimal places...

[r035198x]

import javax.swing.JOptionPane;
public class MilesPerGallon
{
public static void main(String[] args)
{
String miles;
String gallons;
double MPG;
double miles1, gallons1;

miles=JOptionPane.showInputDialog("Enter the number of miles driven : ");
gallons=JOptionPane.showInputDialog("Enter gallons of gas used : ");

miles1=Double.parseDouble(miles);
gallons1=Double.parseDouble(gallons);

MPG = miles1 / gallons1;

JOptionPane.showMessageDialog(null,"Your Car's Mileage is : " + MPG + "\n");
System.exit(0);
}
}

this returns me a dialog where in I enter 400 then another dialog where in i enter 3.. the result is 133.333333333334 how do i restrict the result to 2 decimal places...

1.) Use code tags when posting code
2.) Compare System.out.printf with the NumberFormat and take your pick.