Computer Science Canada

Why wont this loop properly?
Author:  bushnerd [ Thu Feb 09, 2006 6:01 pm ]
Post subject:  Why wont this loop properly?
I am having trouble getting this to loop properly. I want it to loop until they enter a proper time under 4.5 seconds. When I enter it, it just ends the program.

Thanks

code:
import javax.swing.*;

public class height {
       
        public static void main (String[]args) {
                double time, answer;
                String inputStr;
                inputStr = JOptionPane.showInputDialog(null, "Enter a time less then 4.5 seconds");
                time = Double.parseDouble(inputStr);
                while (time >4.5){
               
                if (time <= 4.5) {
                        answer = 100-4.9*time*time;
                        JOptionPane.showMessageDialog(null,"The height of the object is: " +answer);
                } else {
                JOptionPane.showMessageDialog(null,"please enter a valid number under 4.5");
                        }
                        }

                }
        }
Author:  Hikaru79 [ Thu Feb 09, 2006 6:11 pm ]
Post subject: 
Look at the following two lines, as you wrote them in your program:

Java:
while (time >4.5){
     
      if (time <= 4.5) {
I'm sure you can see now what is wrong here Smile

:


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