How To Make Different Class For Each JPanel
Jan 31, 2014
I have made four apps and I want to put each of them in one project to make a big app.So,I have made a JFrame which has a lot of Jpanels inside.My question is how I can write different class for every Jpanel because I try to put all of them in one class,and it was not a good idea. Also, I do not want to open an other window when I choose an app. I want to have a Jpanel for every app. I use Cardlayout, I have read the tutorials but I can not understand. Also,I thought to make a different JFrame but I do not want to open a different window when I open a different app.
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Aug 19, 2014
I can't figure out how to place a JPanel from a class(Game) in to a another class(Core). I have bean stuck on this for about three days now I bean doing my research but no luck so now I think I should ask directly so here I am. Now to state clearly I am trying to place a JPanel named Game_Screen witch is in another class named Game into a JFrame named frame witch is in a another class named Core.
Now both of this classes are with in the same package and my IDE Is Eclipse.The JPanel Game_Screen has other swing pieces attached to it that should also be added with the panel on to the frame.But the change is screen should only happen when I click the buttons New Legend(N),Load Legend(L),Help(H) what already happens is that when you click any of this buttons menu.setVisible(false); is activated making everything on screen at the time disappear from the screen but the panel does not a pear.
Here's my code:
//Class - Core-------
package Source;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class Core {
static Game GG = new Game();
public static void main(String[] args) {
JFrame frame = new JFrame();
[Code]...
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Jul 28, 2014
I am trying to make a game of pong and am having trouble adding my ball class to a JPanel. Here is what I have so far.
package pong;
import java.awt.*;
public class Ball{
private int xPos,yPos;
public int dx = 5, dy = -5;
public Ball()
[code].....
I want to be able to add this to a JPanel but it is not allowing me to add the ball. Here is my JPanel
package pong;
import java.awt.*;
import javax.swing.JPanel;
public class BallTestPanel
[Code] ....
It reads panel.add(ball); as an error. I says that I need to change the type ball to component.
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Jun 1, 2014
So I am making a JPanel with two JLabels and it isn't working right.
import java.awt.*;
import javax.swing.*;
public class IntroPanel extends JPanel
{
public IntroPanel() {
setBackground(Color.green);
[Code] ....
For some reason
JLabel 11 = new JLabel("Layout Manger Demonstration");
JLabel 12 = new JLabel ("Choose a tab to see an example of a layout manger.");
add(11);
add(12);
is not registering the JLabel or add functions.
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Feb 12, 2015
I have a JPanel class that creates a left panel and a right panel. the left panel and right panel both have one button each. What I’m trying to accomplish is when I click on the button in the left panel that it updates the button in the right panel. I have to do this without changing anything in the right panel.Basically I have to have LeftPanel have a way to keep track of an instance of RightPanel and I would have to do this through the JPanel class. But I have no clue where to begin on even accomplishing this.
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Jun 9, 2014
I am making a game in java and i want to make a title screen. What I am trying to do is make a jpanel and load another jpanel when a button is pressed in one of the japenls. Here is the code for the runner
import java.awt.BorderLayout;
import javax.swing.JFrame;
public class Runner extends JFrame {
// Have these set up so they can be seen everywhere
public static final int GAMEWIDTH = 540;
public static final int GAMEHEIGHT = 710;
static boolean loading = false;
[Code] ....
here is the code for the jpanel that loads the other jpanel
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Rectangle;
[Code] ...
How do load a jpanel when a button is pressed in another jpanel
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Jul 17, 2014
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++){
[code]....
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Jun 17, 2014
I have a Main() class that extends JPanel and I'm trying to add Card() that also extends JPanel.When I add a Card() or Main() object to the JFrame directly, it works fine. The problem arises when I try to add a Card() object to the Main() object.
I edited the code a little bit to make it easier to read so hopefully it's fine.
Main() code:
public class Main extends JPanel implements Runnable {
// HARDCODED OPTIONS
public static final int WIN_WIDTH = 1200;
public static final int WIN_HEIGHT = 800;
public static final int GRID_X = 9;
public static final int GRID_Y = 5;
[Code] ...
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Mar 31, 2014
I am very Java illiterate and I need to know how would i set all the variables in the first class to null or 0 to make a new method to clear everything.
import java.util.Arrays;
import java.util.Scanner;
public class studentMethods
{
private double totalScore;
private int count;
[Code] ....
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May 26, 2015
Alright, I have two classes, this one
public class Player {
private String player;
public String getPlayer() {
return player;
}
private int strength;
private int defense;
[Code] .....
However, it says that under Player.getPlayer() that it 'Cannot make a static reference to the non-static method'.
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Apr 12, 2014
Basically the class is supposed to have a static variable that keeps track of the number of companies (numberOfCompanies) that have been created and a static method that returns the value of this variable. I need to have a constructor and a method to addEmployee, a method to printCompany, and a toString method. The addEmployee method will check that there is only 1 salesperson, 2 designers, and 4 manufacturing persons at a time and will check that there are no more than 7 employees of the company.
The addEmployee method will return a String indicating what the error is (i.e. "There is already a sales person in this company") or a null if the employee was added. If attempting to name a third company, an error message will be shown. what i have so far but my print company mmethod returns null company class :in which i am obliged to use inputdialog because it says that it cannot return void when i use the showmeassage diaolog.
company class:
import java.util.ArrayList;
import javax.swing.JOptionPane;
public class Company {
private ArrayList<Employees> list ;
private static int numberOfCompanies;
[Code] ....
error message when print button is clicked:
Exception in thread "AWT-EventQueue-0" java.lang.RuntimeException: JOptionPane: parentComponent does not have a valid parent
at javax.swing.JOptionPane.createInternalFrame(Unknown Source)
at javax.swing.JOptionPane.showInternalOptionDialog(Unknown Source)
at javax.swing.JOptionPane.showInternalMessageDialog(Unknown Source)
[Code] ......
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May 8, 2014
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);
[code]....
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Mar 18, 2015
I have tried to get my JPanel to refresh and show a new combo box, labels and fields but I can't get it working with revalidate or repaint.
package Part4;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class AddressGUI extends JFrame implements ActionListener{
Address address = new Address();
[code]...
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Mar 18, 2015
how do i add image in JPanel
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Oct 14, 2014
I code a program using Eclipse Keppler with Java 8.0. I made a program with 2 JPanel. The first JPanel is working well. From a button in first JPanel, I excute second JPanel, but It is not working. No error when I compile the code. Here is, I attached the source code.
import javax.swing.*;
import java.awt.Color;
import java.awt.event.*;
[code]....
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May 8, 2015
I want my program to show 1st panel and when a person press image label 2nd panel showup which will have 2 tabs "oneway" and "round trip". But rightnow I only see 2nd panel with only 1 tab and don't see 1st panel at all.
import java.awt.*;
import static java.awt.Font.BOLD;
import java.awt.event.*;
import java.awt.event.*;
import java.awt.event.ActionListener;
import java.util.Calendar;
import java.util.GregorianCalendar;
import javax.swing.*;
import javax.swing.Timer;
import javax.swing.border.*;
import javax.swing.event.*;
[code]....
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Aug 27, 2014
I'm trying to fix the length of expenses to a appropriate size on my Jpanel but not sure how.
package mybudgetapp;
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
[code]....
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Apr 16, 2015
I have a JPanel embedded in a JScrollPane. I draw in the JPanel, using the paint() method. I have to draw some shapes that can go far in the y direction, that's why I put my JPanel in a scroll pane, in order to scroll down to be able to discover the shapes down. But even though I put my JPanel in a JScrollPane, it soon blocks in the y direction and does not show the shapes far in the y direction.
Note: I used a GridBagConstraints which is correctly set, with its fill attribute etc.
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Jan 16, 2015
As you can see in the above image. I have create One jFrame inside it their is one jPanel. Inside jPanel their are dynamic buttons whose range can change. (its like text box if you add more text scroll bar will appear)
I want to add jScrollBarr/jScollPane to jPanel so that when more than 6buttons will be their, I can scroll it down/up. So my question is how should I place jScollPane using this DRAG-DROP tool. When i clicked on jScrollPane and tried to put it inside jPanel I am unable to set it's position. It's my first time to add jScrollPane for jPanel inside jFrame.
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Mar 5, 2015
How do you declare methods for a class within the class whilst objects of the class are declared else where?
Say for instance, I have a main class Wall, and another class called Clock, and because they are both GUI based, I want to put a Clock on the Wall, so I have declared an instance object of Clock in the Wall class (Wall extends JFrame, and Clock extends JPanel).
I now want to have methods such as setClock, resetClock in the Clock class, but im having trouble in being able to refer to the Clock object thats been declared in the Wall class.
Is this possible? Or am I trying to do something thats not possible? Or maybe I've missed something really obvious?
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Feb 21, 2015
In my if statement on line 46 & 47 im trying to add the buttons to the screen if the player has lost and the "game over" screen have popped up. But the buttons aren't showing... what am i doing wrong?
import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
[code]...
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Apr 17, 2014
I want to add a "play" and a "stop" button to stop and play a sound file. Sound file works good, but buttons aren't appearing in the window.
public class SpelaLjud extends JPanel implements ActionListener {
JButton bPlay, bStop;
AudioClip ac;
public SpelaLjud() {
bPlay = new JButton ("PLAY");
bStop = new JButton ("STOP");
add(bPlay);
add(bStop);
bPlay.addActionListener(this);
bStop.addActionListener(this);
[code]....
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Jul 2, 2014
Yes my JPanel is not displaying all the time like you would think it would. Before you beat me up yes I am a bit new I am just working on the GUI part of java over my summer break. Obviously it is not suppose to do that. Secondly, As you can see i am using the alphabet to create JButtons. Shouldnt there be an easier way to use a for( loop) . I tried before but I didn't want to get too side tracked.
Java Code:
import javax.swing.*;
import java.awt.*;
public class hello {
private JFrame alphaframe1;
private JFrame alphaframe2;
[Code] .....
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Sep 22, 2014
I'm learning the swing options of Java, and my first exercise was the typical Chat Room. I got everything right: TextField, TextArea, the jpanel at left side and the buttons inside of it. BUT I can't order the 2 buttons (1 north, 1 south). I've already looked for answers, but didn't find anything and I tried to asked the teacher, but she was too lazy to look for the error. Here is my code:
f=new JFrame("Chat Room");
b1=new JButton("Send");
b2=new JButton("Emoticons");
public void showWindow(){
p1=new JPanel();
f.getContentPane().add(p1,BorderLayout.EAST);
p1.add(b1,BorderLayout.NORTH);
p1.add(b2,BorderLayout.SOUTH);
}
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May 6, 2014
Is there a way to create insets for the JPanel without using the GridBagLayout, or createEmptyBorder() because the panel already wants to have an etched border?
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Nov 28, 2014
I am making a graph to implement Breadth First Search and Depth First Search. I changed the program because I want each button to be its own node. However I am having an issue placing them into a panel. When I run the program I get the following error:
The method add (Component) in the type Container is not applicable for the arguments (Buttons)
JPanel matrixPan(){
Buttons[][] matrixBtn = new Buttons[25][25];
JPanel panel = new JPanel();
panel.setSize(550,550);
panel.setLayout(new GridLayout(25,25));
[Code] .....
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