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Thread: DecimalFormat error when compiled

  1. #1
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    Default DecimalFormat error when compiled

    I am new to Java, and having problems with the use of DecimalFormat. When I compile the program it gives me an error so it doesn't work. I am not sure what I am doing wrong. I think that I am using the syntax correctly. When I take out the DecimalFormat it compiles and runs, but I would like the output with commas. What am I doing wrong here?

    import javax.swing.JOptionPane;
    import java.text.DecimalFormat;
    public class yeargas
    {
    	public static void main(String[] args)
    	{
    		int tank, month;
    		double year, yearx ,total;
    		String input;
    		DecimalFormat formatter=new DecimalFormat(0,000);
    		//get the average cost to fill 1 tank of gas
    		input=JOptionPane.showInputDialog("What is the average cost to fill 1 tank of gas? ");
    		tank=Integer.parseInt(input);
    		//get the x number of times you fill in a month
    		input=JOptionPane.showInputDialog("What is the average number of times you fill your car in a month? ");
    		month=Integer.parseInt(input);
    		//calculate the cost for a month
    		//multiply that by 1 year
    		year=(tank*month)*12;
    		//get the x number of years to calculate
    		input=JOptionPane.showInputDialog("How many years do you want to calculate for? ");
    		yearx=Integer.parseInt(input);
    		total=yearx*year;
    		//display the aproximate total cost for x
    		JOptionPane.showMessageDialog(null,"Your average cost of gas for "+yearx+" is $"+(formatter.format(total))+".");//total+".");
    		System.exit(0);
    	}
    }


  2. #2
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    Default Re: DecimalFormat error when compiled

    You need to pass DecimalFormat a String. Put quotes around 0,000.
    Also, please post your error in the future.
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    Default Re: DecimalFormat error when compiled

    Thanks for help. I didn't catch it. I am in a room that is about 93 degrees with a fan as my only saving grace.

    How do I do that, so that I can do it the next time around.

  4. #4
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    Default Re: DecimalFormat error when compiled

    Just tell us what error you are getting when you compile it.
    NOTE TO NEW PEOPLE LOOKING FOR HELP ON FORUM:

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    3. Give us an example of what the output should look like when done correctly.

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    Default Re: DecimalFormat error when compiled

    This thread has been cross posted here:

    http://www.java-forums.org/new-java/61295-decimal-format-error.html

    Although cross posting is allowed, for everyone's benefit, please read:

    Java Programming Forums Cross Posting Rules

    The Problems With Cross Posting


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    Default Re: DecimalFormat error when compiled

    THIS SHOULD RUN NOW
    ...edited by moderator
    Last edited by copeg; July 11th, 2012 at 11:46 PM.

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    Default Re: DecimalFormat error when compiled

    @kindk12, please read The Problem with Spoon-feeding

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