/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package question1a;
import java.util.Scanner;
/**
 *
 * @author crusoe
 */
public class Question1a {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        int         a, b, c, d, e, max = a, min = a;
        Scanner     keyboard = new Scanner(System.in);
        
        System.out.println("Enter five integer numbers"); 
        a = keyboard.nextInt();
        b = keyboard.nextInt();
        c = keyboard.nextInt();
        d = keyboard.nextInt();
        e = keyboard.nextInt();
       
       
                
        if (b < min)
            min = b;
        if (b > max)
            max = b;
        
        if (c < min)
            min = c;
        if (c > max)
            max = c;
        
        if (d < min)
            min = d;
        if (d > max)
            max = d;
        
        if (e < min)
            min = e;
        if (e > max)
            max = e;
        
        System.out.println("The min is" + min + "and the max is" + max);
        }
}



ERROR is..

run:
Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - variable a might not have been initialized
	at question1a.Question1a.main(Question1a.java:17)
Java Result: 1
BUILD SUCCESSFUL (total time: 1 second)