Roll Four Sided Die Between 100 And 1000 Times Depending On Input And Display Answer

Oct 29, 2014

I'm trying to get the program to roll a four sided die between 100 and 1000 times, depending on your input, and then displaying the answer.

public class Lab08
{
public static void main(String[] args)
{
int v1 =0, v2 = 0, v3 = 0, v4 = 0;
int n;
char response;
System.out.print("Enter number of rolls (100-1000): ");
 
[Code] ....

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Program To Roll 1000 Times And Count How Many 7s Rolled

Nov 15, 2014

public class PairOfDice
{
private Die die1, die2;
public PairOfDice() {
die1 = new Die();
die2 = new Die();

[Code] .....

I am struggling with the final part of my code to get the dice to roll 1000 times and tell me how many times a 7 was rolled. I am getting these errors in jgrasp

----jGRASP exec: javac -g PairOfDice.java

PairOfDice.java:34: error: <identifier> expected
count = 0;
^
PairOfDice.java:35: error: illegal start of type
for (rep = 1; rep <= 1000; rep++) {

[Code] .....

22 errors

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Using Parallel Arrays To Store Names And Job Titles Then Display Combo Depending On Input

Dec 24, 2014

I am trying to use parallel arrays to store names and job titles, then display the name/job title combo depending on which is entered. I have always struggled with arrays, so I'm sure that's where my issue is, but I am not sure how to resolve this one. I tried to use the toString() method with the jobs to see if that would allow the job title to match to one of the titles listed, and I tried to not use the toString() method with the names to see if that would allow the name entered to match to one of the names listed in the array. Both options only display the "invalid" message no matter what I enter. What would be the best choice to use the arrays to properly display the information ....

import java.util.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 public class JEmployeeTitle2 extends JApplet implements ActionListener
{
Container con = getContentPane();

[Code] .....

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Naming Objects Depending Of Times A Loop Have Gone

Oct 4, 2014

I know the normal way of naming objects is

Pipe pipe1 = new Pipe

but I want the objects to be made inside a loop and named after how many times the loop have been gone through so I tried

Pipe pipe(numberOfTimes) = new Pipe

where numberOfTimes was a variable counting the loops. This is not working.I need the naming to be pipe1, pipe2, pipe3 etc depending on how many times the loop have been pased

Scanner keyboard = new Scanner (System.in);
String morePipes = ("yes");
int dimRor;
int numberOfPipes = -1;

[code]....

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Creates Two Die Objects And Roll Them Display The Values

May 4, 2014

I've written a die program, and i want the user to type any key in order to continue, how do i achieve this ?

I have already created a Die class, i just want to implement the main method now.

PHP Code:

package test;

/* This program demonstrates the use of a user-defined class

public class RollingDice {
// Creates two Die objects and rolls them display the values.
public static void main (String[] args) {
Die die1 = new Die();
System.out.println("Roll the die ")
}
} mh_sh_highlight_all('php');

What should i add after System.out.println, So that the user types (any key, or types "Enter" for example, for the die to roll). i dont want the die to roll by itself i Want the user to interact with the program in order for it to roll.

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Program Should Output Depending On Input Number

Apr 15, 2014

The program should has the output depending the number I'll input. (The number should be from 1-9) . This is the program's output should be:

Input number: 4

Output:
# # # 1 # # # # #
# # # 2 # # # # #
# # # 3 # # # # #
1 2 3 4 5 6 7 8 9
# # # 5 # # # # #
# # # 6 # # # # #
# # # 7 # # # # #
# # # 8 # # # # #
# # # 9 # # # # #

(Example 2):
Input numbers: 8

Output:
# # # # # # # 1 #
# # # # # # # 2 #
# # # # # # # 3 #
# # # # # # # 4 #
# # # # # # # 5 #
# # # # # # # 6 #
# # # # # # # 7 #
1 2 3 4 5 6 7 8 9
# # # # # # # 9 #

(Example 3):
Input number: 5

Output:
# # # # 1 # # # #
# # # # 2 # # # #
# # # # 3 # # # #
# # # # 4 # # # #
1 2 3 4 5 6 7 8 9
# # # # 6 # # # #
# # # # 7 # # # #
# # # # 8 # # # #
# # # # 9 # # # #

I'm not asking the code to make this program, I have trouble to understand the algorithm to make this program ...

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Guess Number Game - Reveals Answer If User Input Is Wrong

Sep 1, 2014

The problem occurs after the user inputs the guess.... it either runs the for loop if guess = numtoguess and reveals the answer even if the user input is wrong.... or it always runs the first if statement in the while loop if guess!= to numtoguess... heres the code

public static void main(String[] args) {
String[] Answers = {"yes", "Yes", "No", "no"};
String Name = JOptionPane.showInputDialog(null, "Hello, What is your name?","Random Game", JOptionPane.QUESTION_MESSAGE);
String UI = JOptionPane.showInputDialog(null, Name + " do you want to play a game", "Random Game", JOptionPane.QUESTION_MESSAGE);

[Code] ....

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String Characters Display First Three Multiple Times

Sep 26, 2014

I am trying below challenge to display first three characters three times if the size of the string is greater than 3.

Say if i send hello i should get helhelhel

if i send xyz i should get xyzxyzxyz

I wrote as below

public String front3(String str) {
if(str.length()==3){
return str+str+str;
}
if(str.length()>3){
String str2=new String(new char[]{str.charAt(0),str.charAt(1),str.charAt(2)});
return str2;
}
}

I am getting error as below

Error:public String front3(String str) {
^^^^^^^^^^^^^^^^^^
This method must return a result of type String

Possible problem: the if-statement structure may theoretically allow a run to reach the end of the method without calling return. Consider adding a last line in the method return some_value; so a value is always returned.

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Display Result Of Two Dice Thrown Five Times And Total Of Those Results

Sep 12, 2014

I need to create a simply application that would display the results of two dice thrown five times and the total of those results. This is shown below in the attached file.

The problem is, I have a do-while loop that loops 6 times. Inside the loop, I have 2 random.nextInt(5) that generate random numbers. But how can I output the total? How can I make a variable equal to the sum of the two random numbers if the two random numbers are located inside a do-while loop?

Attached below is also the code I have thus far.

(Attached below is both files: what it needs to look like, and what it currently looks like)

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Count And Display Number Of Times Specified Character Appears In String

Mar 7, 2014

Write a program using a while-loop (and a for-loop) that asks the user to enter a string, and then asks the user to enter a character. The program should count and display the number of times that the specified character appears in the string. (So, you will have two separate program codes, one using a while-loop and the other one using a for-loop.)

Example:
Enter a string: "Hello, JAVA is my favorite programming language."
Enter a character: e
The number of times the specified character appears in the string: 3

I don't even know where to begin I've only got this

import java.util.Scanner;
 public class letterCounter {
 public static void main(String [] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter a string");
String myString = sc.nextLine();
System.out.println("Enter a letter");
String letter = sc.nextLine();
}
}

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Scheduling Software - Display Chart Showing Lesson Times For Particular Teacher And Students

Aug 27, 2014

I want to develop a dynamic scheduling application that I hope to use at work, but I have some questions about the design approach since this is my first undertaking of this kind of project.

The purpose of the application is to display a chart showing the lesson times for a particular teacher and her students.

Here's are more important details:

-The chart displays the current day's schedule.
-The top row displays the teacher's name. There are at least 4 teachers each day.
-The leftmost column shows the times (from 3:00 to 8:00).
-The table is filled with the names of the students.

My current problem is deciding on the best approach to storing this data containing the teacher and her students and times. I should also note that there are about 500 students and around 20 teachers (i.e. the dataset is small). Is this a problem solved using a database and JDBC or could I just write the data to file? Are there other approaches that would solve this problem?

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Generate QR Code From Input Text And Display Information About Input / Output Bits

Nov 12, 2014

I am trying to write a program that will generate a QR Code from an input text and also display some information about the input/output bits. So far I have created the frame and what to do next. And I'm not sure if I am on the right track since my level of programming is not that great. By the way, I am using zxing libraries from GitHub. I know, there are plenty of generators online for the QR Code, but that is not what I am looking for. As you can see on the attached image, I am more interested in the efficiency of encoding 2D data. Also, I noticed that almost all the online projects regarding 2D codes are for Android. Which is not very useful.

// QR Code Generator
package qrcode;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EtchedBorder;
import javax.swing.border.TitledBorder;

[Code]....

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N-sided Regular Polygon

May 8, 2013

I'm working on is to create a program to display an n-sided regular polygon and uses two buttons named +1 and -1 to increase or decrease the size of the polygon. Also enable the the user to increase or decrease the size by clicking the right or left mouse button and by pressing the UP and DOWN arrow keys. So, first off I'm just trying to figure out how to display an n-sided polygon. I have some of the other components started, but I'm just trying to focus on getting this to work.

import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.Graphics;
import java.awt.Polygon;

[code]....

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Write Numbers From 1 To 1000 But 5 By 5

Oct 10, 2014

I need to write a JAVA program and algorithm that writes the numbers from 1 to 1000. Then I ned to write another one that writes the numbers from 1 to 1000, but 5 by 5. ( example 5,10,15,20,25,30)....

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N-Sided Regular Polygon Main Method Error

Sep 5, 2014

My code is giving me an error at the main method and it says that modifier 'static' is not allowed in constant variable declarations. every program that i searched for had the same code line but none had the problem i do.

package regularpolygon;
/**
*
* @author home1
*/
import java.lang.Math;
import java.text.*;

[code]...

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Generating Random Number Between 1-1000

Oct 31, 2013

I am very new to programming. This is for a college assignment. It says in the brief of the assignment that we will need to convert Math.random to output a random number between 1-1000. How can I do this?

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Dice Roll GUI - Where To Place Constructor

Feb 17, 2014

I am making a Dice Roll GUI and I have most of it down and I only need this constructor to work for the program to work (I think). I don't know where to place the constructor, I tried placing it around the RollButton class but it still didn't work and gave me java error constructor in class cannot be applied to given types

Here's my constructor:

private JPanel panel;
public RollButton(JPanel panel){
this.panel = panel;
}

Here's my code:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import java.util.Random;
import javax.imageio.ImageIO;

[code]....

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All Possible Outcomes Of Dice Roll Using Recursion

Nov 26, 2014

Here is what I have so far:

/**
* This class encapsulates a simple dice game. The number of dice and number of sides on those dice are given by instance variables. The outcomes ArrayList holds a list of all possible outcomes of throwing that number of dice with that number of sides.
*
* If there were 2 dice, each with 6 sides, then possible outcomes would include 1 1, 1 2, 1 3, 1 4, 1 5, 1 6, 2 1, 2 2, 2 3, and so on.
*
* Your task is to complete the methods that calculate the possible outcomes. One method calculates outcomes allowing for repeated numbers. One method calculates the outcomes of a fictional dice game where repeated numbers cannot occur.
*
* You must use recursion. This is a variation on the permutations problem from the book.
*/

public class Dice
{
private static int numberOfSides;
private static int numberOfDice;
public ArrayList<String> outcomes;

[code]...

I manage to calculate the numberOfOutcomes correctly, but then get a nullPointerException. Also, is there a way that I can use getNumberOf Outcomes without making it static? The testing code that the teacher provided is using it in another class and if I make it static, then it doesn't work in that file.

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Keep Track Of Result Of Each Roll Using Array

Mar 8, 2014

The code I have below asks the user how many times you want to roll the dice. It rolls dice 1 and dice 2 randomly and gives the total. Now, I'm trying to keep track of the result of each roll using an array that is indexed by the sum of the roll of the two dice. Then I want to output my result in a table that shows each value (from 2 - 12)) and the number of times that value was rolled. I would like to do this preferably with the JTextArea class, but it doesn't have to be. I keep getting errors.The code below works for the dice rolling in the 1st paragraph. I took out all the bad code I was trying to use for the 2nd paragraph.

package Part2pack;
import java.util.Random;
import javax.swing.JOptionPane;
class Dice{
public static void main (String args[])
{
String input = " ";
int count = 0,dice1,dice2;

[code]....

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Add Program In Order To Dice To Roll

May 8, 2014

what code I should add to my program in order to get these dice to roll. The program, according to my teacher, is CORRECT so far, so I'm not going to change anything. I just need to know how to roll the 2 dice I added in. I just want to get it done. No math.Random. The direction is: Roll each of the Dice by invoking the roll method on each Dice in the array.

My code:

//Dice.java
package homework3;
import java.util.Random;
public class Dice {
private int numberShowing;
private int numberOfSides;
private static final Random randomNumber = new Random();

[code]....

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Roll Two Dice / Add Them Together And Print The Result

Oct 23, 2014

Write a program that rolls two dice, adds the numbers and prints out the results. I have managed to do this but we have to make it a horizontal table instead of a vertical one. like the attached file "CORRECT", right now i only get the "NOTCORRECT". i have tried for hours to fix this but i can't.

import java.util.Random;

public class Statistikk {
public static void skrivStatistikk() {
Random rand = new Random();
int[] antall = new int[13]; {

[Code] .....

(Antall is basically frequency|side is the same as a face of a die)

Here is my code, does my code need improvement? Or is it my printf that is the issue? i've tried deleting the 's and adding the printf to the same line, but nothing worked.

Attached image(s)

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Apr 14, 2014

This program is supposed to accept an integer as an input and display the message that the number is even or odd. The main method calls a Boolean method. Write a method private static boolean iseven(int number and the message is printed from the Main method. This is what I have.

import java.util.Scanner;
public class OddorEven {
int number;
public static void main(String[] args) {
Scanner input = new Scanner(System.in);

[Code] ....

I know the message is not being printed from the Main method. I'm not sure how to do that.

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Simulating Roll Of D6 Dice With Java Code

Apr 21, 2015

I am trying to figure out how to simulate an ability score calculation for an RPG character creation. The way I want to do it is to have 5 d6 dice rolled and then the best three of the 5 rolls are added together for a maximum of 18 points and a minimum of 3 points.

Now I know how to generate random numbers, but I do not know how to have the best 3 picked out. What I have right now is super simple.

package javaapplication12;
import java.util.Random;
public class JavaApplication12 {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {

[Code] ....

So this gives me my five rolls but then have the code pick out the best three every time the program is run is kind of an issue for me.

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Reading File Input - Display All Values

Apr 8, 2014

I've been trying to learn how to read in file input and have a question about this piece of code:

Java Code:

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Scanner;
public class readFile {

public static void main(String args[]) throws FileNotFoundException{
File file = new File("file.txt");
int sum[]=new int[5];
int i=0;

[Code] .....

"file.txt" holds the following information:

1
2
88
42
56
89

But my output looks like:

2
42
89

if I take out sum[i]=input.nextInt(); it will display all values in the file.

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Array Index Input - Display Elements?

Nov 15, 2014

So in my code, I have the user input a number, and the program will then display that element in the array (I've done this bit). However I need to write code to check that the user is entering a valid index number, and if they don't, I need to prompt them that the number they have entered is incorrect and let them retry, and I don't know how to.

This is my full code, I have added a comment underneath where I need to add the code:

import java.util.Arrays;
import java.util.Scanner;
 public class StudentNames {
public static void main(String[] args) {
String[] names = new String[8];
Scanner s = new Scanner(System.in);
for (int i = 0; i < 8; i++) {

[Code] ....

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Multi-sided Dice - Keep Track Of Total Sum Of All Dice In Array

May 7, 2014

I'm finishing up this assignment, and I'm stuck. These are the last 2 instructions:

. Roll each of the Dice by invoking the roll method on each Dice in the array.
. Keep track of the totals sum of all the dice in the array. Be sure to roll the dice array at least 10000 times.

How to finish it up?

Here's my code so far:

package homework3;

import java.util.Random;
public class Dice {
private int numberShowing;
private final int numberOfSides;
private static final Random randomNumber = new Random();
public Dice() {
numberOfSides = 6;

[Code] ....

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