Thread: help with printing output in columns

I have an assignment that I have completed the code but I am having problems formatting the output into columns. I know I should use printf, but I am getting an error message with my arguments. I am just begining to learn Java. Thanks.

import java.util.*;
import java.text.*;
import java.io.*;

public class election {

public static void main(String[] args) {

Scanner console = new Scanner(System.in);

String [] candidates = new String [5];
int [] votes = new int [5];
int totalVotes = 0;
double perOfVotes = 0.00;

for(int num= 0; num < 5; num++)
{
System.out.println("Enter the name of candidate "+ (num+1) +": ");
candidates[num] = console.next();
System.out.println("Enter the total votes for candidate "+ (num+1)+": ");
votes[num] = console.nextInt();
totalVotes = totalVotes + votes[num];
}

System.out.println("Candidate\t" + "Votes Received\t" + "% of Total Votes");
for(int counter=0; counter < candidates.length; counter++)
{
perOfVotes = (double)votes[counter]/totalVotes*100;

DecimalFormat df = new DecimalFormat("#.##");

System.out.printf ("%5s%5d%5d %n", candidates[counter] + votes[counter] + (df.format(perOfVotes)));
}

System.out.printf("%5d", "Total" + totalVotes);
}
}

Originally Posted by jblankinship

I have an assignment that I have completed the code

Great!

Originally Posted by jblankinship

but I am having problems formatting the output into columns.

Oh. So you haven't completed all of the code. (In my opinion, the code is not "complete" until it runs and behaves the way that you expect.) But having code that compiles with no errors and starts to run before bailing out is a good start. A very good start.

Originally Posted by jblankinship

I am getting an error message with my arguments.

If you will post the exact, complete, non-paraphrased, non-abbreviated error message(s) you are getting and tell us what input(s) you gave the program and if you will point out to us the specific line that is flagged as causing the error, maybe someone can walk you through the steps to learning how to use the error messages to help you debug a situation like this.

Originally Posted by jblankinship

I am just begining to learn Java

Well, no one was born knowing this stuff, you know. So: Let's get the show on the road!


Cheers!

Z