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Thread: Help with dialog box

  1. #1
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    Default Help with dialog box

    All,

    Hello...I am extremely new to the java scene, I am working on my first assignment in my java class. My problem is I cannot get my input in String Degrees to calculate and then display my the degrees entered. The input box comes up from String Degrees and allows for an input of data, but then disappears when you click ok and nothing happens. but after this if I type the degrees into the CMD Prompt it calculates and displays the second Message box with the answer. I need it to on click ok calculate using the formula and then automatically display the answer. I Would extremely appreciate a lil nudge in the right direction considering this is due tonight. Stupid Vista took me a 3 Days to figure out how to get JAVAC to compile anything in Vista. Thanks in advance for all of your help.

    import java.util.Scanner; //program that uses a class scanner
    import java.lang.Double;
    import javax.swing.JOptionPane; //Dialog Boxes
     
    //program that converts Farenheit to Celsius
     
    public class DegreeCalculation
    {
    	public static void main( String args[] )
    	{
    		Scanner input = new Scanner( System.in );
     
    		double number1;
    		double sum;
     
    	                     //User Enters Degrees 
    	String degrees=
    		JOptionPane.showInputDialog("Input Degrees in Farenhiet:");
    		number1 = input.nextDouble(); //reads the first number				
     
    		double number2 = Double.parseDouble(degrees);
    		sum = (number2 - 32) * (5.0 / 9);
     
    		//Prints Message containing conversion
    	String message=
    		String.format("Sum is: %.15f\n", sum);
     
    		JOptionPane.showMessageDialog(null, message);				
     
    	} //end method main
     
    } //end class DegreeCalculation
    Last edited by 03EVOAWD; August 4th, 2009 at 11:53 AM. Reason: more specific information added


  2. #2
    Senile Half-Wit Freaky Chris's Avatar
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    Default Re: Help with dialog box

    delete this line

    number1 = input.nextDouble(); //reads the first number

    Chris
    chris[at]javaprogrammingforums[dot]com

    Prifysgol Bangor University, North Wales

  3. The Following User Says Thank You to Freaky Chris For This Useful Post:

    03EVOAWD (August 4th, 2009)

  4. #3
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    Default Re: Help with dialog box

    Wow.....Thanks for the quick reply

  5. #4
    Senile Half-Wit Freaky Chris's Avatar
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    Default Re: Help with dialog box

    Your welcome, if thats everything then mark as solved please

    Thanks,
    Chris
    chris[at]javaprogrammingforums[dot]com

    Prifysgol Bangor University, North Wales

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    mmm.. coffee JavaPF's Avatar
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    Default Re: Help with dialog box

    Hello 03EVOAWD.

    Welcome to the forums.

    Good work Chris! Helpful as always
    Please use [highlight=Java] code [/highlight] tags when posting your code.
    Forum Tip: Add to peoples reputation by clicking the button on their useful posts.

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  7. #6
    Senile Half-Wit Freaky Chris's Avatar
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    Default Re: Help with dialog box

    Well I do my best
    chris[at]javaprogrammingforums[dot]com

    Prifysgol Bangor University, North Wales

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