I'm trying to make a program with two buttons... when you click the first a label shows a red square when you click the second it shows a green square... right now i have the imageicons as a comment because when they weren't a comment and i ran the program i saw nothing... the same thing happens when i add label2 to panel3.
Java Code:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class GUI3{
public static void main(String[] args){
//frame
JFrame frame = new JFrame("Test");
Write a program that shows a square frame filled with 100 buttons labeled 1 to 100. Nothing needs to happen when you press any of the buttons. I keep getting errors i am a beginner.
I have made a basic math game that asks you questions and tells you if you have answered them correctly or incorrectly. The game runs great! The thing is that it asks you a question one time and after you answer you have to run the program again. I want to get the program to ask ten questions. After that I want to figure out a scoring system for it but the first step is to get it to ask my ten questions. Here is my code.
package pkgnew; import java.util.Scanner; import java.util.Random; public class New { public static void main(String args[]) {
I just recently started programming and came across the star patterns which normally I am able to do extremely quickly except with this one. I am trying to make a hourglass but I seem to only be able to make the top of it. How to do the opposite so I can finish the hourglass.
package hourglass; class Hourglass { public static void main (String[] arguments){ for(int j=1;j<=5;j++) { for(int i=1;i<=j;i++)
where to create the array of chars that hold the letter grade. I am assuming that would be in the main with the other arrays. Passing it into an object creating a method in the record.java. Then displaying it in my main.
Take the Grades program and make a class. An object that hold 5 student names, an array of 5 chars that hold the letter grades, 5 arrays of four doubles each to hold the set of test scores. The class should have methods that return a specific student's name, average test score and a letter grade based on the average. Demonstrate the class in a program that allows the user to enter each student's name and their 4 tests scores. It should then display each student's average and letter grade.This is my main program:
import java.util.Scanner; public class GradeBook{ public static void main(String[] args){ Scanner input = new Scanner(System.in); Record[] students = {new Record(), new Record(), new Record(), new Record(), new Record()}; for(int j=0; j < 5; j++){
I am screwing around with mouse listeners so i decided to make a basic paint program. It works fine but when it draws more than 100 circles it errors out. i know why its doing it (its because i set the array to 100) but my question is how to make it so it has not limit in the array.
Here is the code
public class PaintProject extends Applet { int numClicks = 100; int numCicles; int xCoord[]; int yCoord[]; boolean paint;
So obviously I'm new to java and i need to write a program that gives exact change in quarters, dimes, nickels, and pennies. For some reason it seems to work correctly but the nickels never is correct and I'm not sure why, seeing as though everything else is.
Java Code:
public class Coins{ private int c; public Coins(int coins){ c = coins; } public void calculate(){ int quarters = c / 25;
My code below is trying to make a connect four program without GUI. I'm having trouble with getting the players to make their moves. What should I put in my "makeAMove" method...
Java Code:
public class Connect
final static int MAXROW = 6; final static int MAXCOL = 7; public static void main(String[] args){
So I'm trying to make a simple program which takes in an argument (target) and then looks through an ArrayList of strings. If it finds a string that begins with (target) then it will return the index of that string. If it doesn't find a string which begins with (target) then it will return -1 instead.
For some reason, the program is always returning -1, rather than the index of the string within the ArrayList when there is one which matches the search criteria.
Here is the code:
public int getIndex(ArrayList<String> text, String target) { int i = 0; int index = -1; boolean found = false;
import java.util.Scanner; public class main { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int number; System.out.println("Input a number");
[code]....
What i want to do is that if the number is greater than 50 to count until 100. else if the number is less than fifty to count for example from 36 to zero.
I created the following hangman program, but it only works for one word file inputs. How can I modify the program to make it work for files with a multiple word phrase?
/**This program is a basic Hangman game. It takes a word or phrase from a file, and then asks the user to guess the letters in it. The program ends when the user inputs 8 wrong guesses. */
import java.util.Scanner; import java.io.*; public class hangman{ public static void main (String[] args) throws FileNotFoundException{ Scanner kb = new Scanner(System.in); String guess;
i have this following codes and im trying to make a java program that calls an object value initialized.
public class TestClass { public String name; public int age; public void myMessage() { System.out.println("Hello I'm" + name + "and i'm" + age + "years old"); } }
what i want is to put the following codes of the object.. so once i compile and run the project it executes the value of an object from the method i defined above.
Ok, so I have to make a program that tells the user to type a sentence and at the end of the sentence a "." must be put to end the program. If a "." period is not entered, it must re-prompt the user to enter a period. On top of all this, the program has to count the number of letters in the sentence. I cant seem to get the while loop working and I cant find anywhere how to make a counter count the number of letters.
import java.io.*; class Sentence //The purpose of this program is to
I am new to programming and we are writing a program to make a tic tac toe game utilizing inheritance, client-supplier, arrays, and EventButton. I am still trying to wrap my head around events and inheritance. We are instructed to write 4 classes (a TicTacToeModel, a TicTacToeView, a TicTacToe Controller, and a TicTacToeButton). I got the TicTacToeModel down, but am having trouble with the other classes.
Instructions for View: Write a class that implements the UML class diagram below. The only purpose of this class is to draw a picture of the specified TicTacToeModel. For purposes of this assignment, we understand a ‘theme’ to include such things as the background color of the tic‐tac‐toe board, the shape and color of the X indicator and the shape and color of the O indicator. While you are free to select your own personalized ‘theme’ your TicTacToeComponent must always be proportionally ‘correct’ regardless of the client‐determined width and height of the Component.
Instructions for the Controller: Write a controller that controls the game. There is one human player (the X player) and the computer player (the O player). The name of the class must be TicTacToeController. In a sense, the controller is the game since the controller will
1) create a TicTacToeModel 2) create a TicTacToeView and 3) create a TicTacToeButton (you must write this class following the design pattern covered in class lectures), a label, and text field such that when the button is pushed, the player moves into the cell selected by the text field. After every player move, the computer moves into a randomly selected empty cell. When the game is over, a text message must be displayed somewhere on the screen the gives the status of the game. While you are free to change the appearance of the controller, the basic elements must be provided
These are our instructions for the TicTacToeButton: create a TicTacToeButton (you must write this class following the design pattern covered in class lectures), a label, and text field such that when the button is pushed, the player moves into the cell selected by the text field. After every player move, the computer moves into a randomly selected empty cell. When the game is over, a text message must be displayed somewhere on the screen the gives the status of the game.And this is the code I have thus far for the button:
import java.awt.event.*; import java.awt.*; public class TicTacToeButton extends EventButton{ public TicTacToeButton(int x, int y, int w, int h) { super("Move"); setBounds(x, y, w, h);
I wasn't supposed to use the % in front of f.I have to make a program to calculate the average temperature and annual precipitation in Jacksonville. I get this error on line 49:
java.util.IllegalFormatPrecisionException; null (in java.util.Formatter$FormatSpecifier)
I don't get any errors during compilation.Here is my code (I'm not using the system selection yet):
import java.util.Scanner; public class AnnualClimate1 { public static void main(String[] args) { double[] temperaturesInJacksonville = {53.1, 55.8, 61.6, 66.6, 73.4, 79.1, 81.6, 80.8, 77.8, 69.4, 61.7, 55.0};
We are making a tic tac toe game for my CS120 class and I am having trouble figuring out how to make our X's and O's. Is there a way to make shapes besides making two lines for an X and an oval with a white smaller oval inside to make an O? We have only learned the basics so far in class (i.e. events, inheritance, client-supplier, etc.)
These are our instructions:
Write a controller that controls the game. There is one human player (the X player) and the computer player (the O player). The name of the class must be TicTacToeController. In a sense, the controller is the game since the controller will 1) create a TicTacToeModel 2) create a TicTacToeView and 3) create a TicTacToeButton (you must write this class following the design pattern covered in class lectures), a label, and text field such that when the button is pushed, the player moves into the cell selected by the text field. After every player move, the computer moves into a randomly selected empty cell. When the game is over, a text message must be displayed somewhere on the screen the gives the status of the game. While you are free to change the appearance of the controller, the basic elements must be provided (a view of the game, a button, and a text field to enter the cell). A sample screenshot is displayed below.And this is the code i have thus far:
[import java.awt.*; import javax.swing.JFrame; public class TicTacToeView extends Rectangle public TicTacToeView(int x, int y, int w, int h) { super(50,60,w,h); this.setBackground(Color.red); JFrame win = new JFrame("Tic Tac Toe"); win.setBounds(10,10,w+100, h+100); win.setLayout(null); win.setVisible(true); win.setBackground(Color.gray);
I am learning out design patterns and doing a little fun project on Model Control View (MCV). I got the concept down, it is pretty simple for the most part. However my buttons are not working.
Here is the code:
public class Controller { private Model model; private View view; Controller(Model model, View view) { this.model = model; this.view = view;
[code]....
It runs but nothing. My other questions is how can I make a box that will print the results.
Right now, i'm trying to do is when a user clicks on my GUI button, it would display a text of information on the button they selected. I'm using an arraylist of objects and i'm trying to input the function inside the mouse click function. But I'm not sure how to properly display that information. Here is my GUI code. I'm working on the raven button. I have animal interface, with a parent class of Bird, and child class of Raven. How I could display this correctly...
public class AnimalJF extends JFrame { private JPanel contentPane; private JTextArea textArea = new JTextArea(); /** * Launch the application. */ public static ArrayList<Bird> Birdlist = new ArrayList<Bird>(); public static void main(String[] args) { Birdlist.add(new Eagle());
So I have a Jframe that has a set of functions that act on a node. What I want to do is allow the user to expand the gui by creating new sets (copies) of these functions when they have more nodes.I thought of hiding extra sets and making it appear they are adding them by making them visible.
