/*
    Array9.java
    CIS 160
    David Klick
    2004-10-18

    User-defined methods returning values.
*/

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;

public class Array9 {
    public static void main(String[] args) throws IOException {
        BufferedReader kbd = new BufferedReader(
            new InputStreamReader(System.in));
        int[] num = new int[10];
        int numItems = 0;

        // read in array items from user
        System.out.print("Enter an integer (DONE to quit): ");
        String strIn = kbd.readLine();
        while (!strIn.equalsIgnoreCase("done") && numItems<num.length) {
            try {
                int k = Integer.parseInt(strIn);
                num[numItems] = k;
                numItems++;
            } catch (NumberFormatException e) {
                System.out.println("Error: Invalid integer");
            }
            if (numItems < num.length) {
                System.out.print("Enter an integer (DONE to quit): ");
                strIn = kbd.readLine();
            }
        }

        // display array items      
        System.out.println("\nThe items entered are: ");
        for (int i=0; i<numItems; i++) {
            System.out.print(padLeft("" + (i+1), 5) + ": "
                + padLeft("" + num[i], 10));
            if (i%3 == 2) System.out.println();
        }
    }
    private static String padLeft(String s, int len) {
        int x = len - s.length();
        for (int i=0; i<x; i++) s = " " + s;
        return s;
    }
}