ArrayIndexOutOfBoundsException In Lottery Application
Jul 25, 2014
I have tried changing the bounds of the arrays but I still don't see where the exception is occurring or how to resolve this issue. Am I missing something blatantly obvious? Below are the two class files for the lottery application that I've been working on for a school assignment.
package com.lottery.test;
import com.lottery.Alarcon.*;
import java.util.Scanner;
public class PlayLottery {
public static void main(String [] args){
System.out.println("CIS-132. Lab 8. Problem #9 - Lottery. Faber Alarcon.");
Lottery lottery = new Lottery();
[Code] ....
I forgot to post the error message I was getting, here it is.
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 5
at com.lottery.Alarcon.Lottery.compareNumbers(Lottery.java:26)
at com.lottery.test.PlayLottery.main(PlayLottery.java:27)
Java Result: 1
I am writing a java application that will function as a lottery game, using arrays it prompts the user to enter 5 digits and matches them against the random lottery numbers generated.
import java.util.Random; import java.util.Scanner; public class App { public static void main(String[] args) { int NUM_DIGITS = 5;
Got the gui to run but the program fails after the first or second loop. It seems to not being able to find the next move with out moving off the board. This is my output on the command line
8 8 8 8 8 8 8 8 NNE NEE SEE SSE SSW SWW NWW NNW java.awt.Point[x=1,y=3] Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: -1 at ktdemo.KnightsTour.nextMove(KnightsTour.java:220) at ktdemo.KnightsTour.nextMove(KnightsTour.java:240) at ktdemo.KnightsTour.nextMove(KnightsTour.java:240) at ktdemo.KnightsTour.findSolution(KnightsTour.java:203) at ktdemo.KnightsTour.access$800(KnightsTour.java:20) at ktdemo.KnightsTour$StartTourListener.mousePressed(KnightsTour.java:162) at java.awt.Component.processMouseEvent(Component.java:6502) at javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
/** * In this program, use for and while loops with calculations to get the lottery odds. */ import java.util.Scanner; import java.util.Random; public class Lottery { public static void main (String []args)
[Code] .....
I need getting my numbers matching. When, I run the program each time no matter what number it keeps saying sorry no matches. However, I do need the program to have matches.
I wrote the following code for a lottery game. The problem comes when I run it. If one number of a 3 digit number matches, it's supposed to print "you win 1000" But regardless if a number matches or not, it says "sorry, no matches" ...
import java.util.Scanner; public class Lottery { public static void main(String[] args){ //generate lottery number int lottery = (int)(Math.random() * 1000); //Prompt the user to enter numbers Scanner input = new Scanner (System.in); System.out.print("Enter your numbers (3 digits): "); int guess = input.nextInt();
import java.util.Scanner; import java.util.Arrays; public class LotteryTester { public static void main(String[] args) { LotteryApplication lottery = new LotteryApplication(); int lotteryNumbersCount = lottery.getLotteryNumbers().length;
[Code] ....
Everything works fine but when I run it the matching numbers tends to be off. For example I will type Enter in 1,1,1,1,1 for my 5 numbers. The lottery numbers will be 5,3,4,5,8 and it will say 1 number matched.
I have problem with sorting my numbers from smallest to biggest and i need to not have repeating numbers, I am stuck. I tried using Arrays.sorts(lottery) but didn't work. and i don't know to but make the numbers not repeat in the same line.
package lottonumbers;
public class LottoNumbers { public static void main(String[] args) { int[] lottery = new int[6]; for (int numoftimes=0;numoftimes<5;numoftimes++){
Write a Java program that randomly generates a five-digit lottery number and prompts the user to enter a five-digit number. Each digit in the number is in the range between 0~9. The program should determine which prize the user wins according to the following rule:
• The user wins the first prize if the user input matches all five digits in the lottery number in exact order. • The user wins the second prize if the user input matches any four digits in the lottery number in exact positions. • The user wins the third prize if the user input matches any three digits in the lottery number in its exact position. • The user wins the fourth prize if the user input matches any two digits in the lottery number in its exact position. • The user wins the fifth prize if the user input matches any one digit in the lottery number in its exact position.
and here is my code. I cant get it to print the right statements.
import java.util.Scanner; import java.util.Random; class Hw5 { static int getPrize(int g1, int g2, int g3, int g4, int g5, int u1, int u2, int u3, int u4, int u5) { //code for determining the prize comparing (g1, g2, g3, g4, g5) to (u1, u2, u3, u4, u5) if (u1 == g1 && u2 == g2 && u3 == g3 && u4 == g4 && u5 == g5)
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1.Created a dynamic web project JWStartProject in eclipse
2.Create a HelloWorld.java class under default package.
import javax.swing.*; public class HelloWorld extends JFrame { private static final long serialVersionUID = 4968624166243565348L; private JLabel label = new JLabel("Hello Java Web START!"); public HelloWorld() { super("Jave Web Start Example"); this.setSize(350, 200); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE ); this.setLayout(null);
[Code] ....
Now I exported this project as JWStartProject.war contains following code.
Created Server in Websphere Admin console
Deployed this war file under the server and started.
I have added MIME types also.
I am unable to launch the application. I am getting 404 errors. May I know where I went wrong?
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Up to this point, I can already load the DLL. I've read some documentation on how to use functions that are in the DLL; but I have some doubts. For example, how can I translate this piece of code to Java?
Java Code:
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