Open a menu from buttons - java

hello eveybody i created this code :
package project1;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.GridBagLayout;
import java.awt.Image;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.awt.image.ImageProducer;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.BoxLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSeparator;
public class ccc {
public static void main(String[] args){
JFrame frame = new JFrame("Food delivery"); // Create a frame
frame.setSize(1600, 1400); // Set the frame size
frame.setLocationRelativeTo(null); // New since JDK 1.4
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true); // Display the frame
JPanel panel = new JPanel(new FlowLayout());
JPanel panel1 = new JPanel(new FlowLayout(FlowLayout.LEFT));
ImageIcon icon = new ImageIcon("hamburger.jpg");
frame.setIconImage(icon.getImage());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new GridBagLayout());
try {
frame.setContentPane(new JLabel(new ImageIcon(ImageIO.read(new File("fd12.jpg")))));
} catch (IOException e) {
e.printStackTrace();
}
frame.setLayout(new FlowLayout(FlowLayout.LEFT));
JLabel label = new JLabel("Welcome to Food Delivery");
label.setFont(new Font("Courier New", Font.BOLD, 38));
label.setForeground(Color.black);
System.out.println("");
JButton btn1= new JButton("Breakfast");
btn1.setFont(new Font("Courier New", Font.BOLD, 16));
btn1.setForeground(Color.BLACK);
JButton btn2= new JButton("Starters");
btn2.setFont(new Font("Courier New", Font.BOLD, 16));
btn2.setForeground(Color.BLACK);
JButton btn3= new JButton("Main Dishes");
btn3.setFont(new Font("Courier New", Font.BOLD, 16));
btn3.setForeground(Color.BLACK);
JButton btn4= new JButton("Deserts");
btn4.setFont(new Font("Courier New", Font.BOLD, 16));
btn4.setForeground(Color.BLACK);
JButton btn5= new JButton("Drinks");
btn5.setFont(new Font("Courier New", Font.BOLD, 16));
btn5.setForeground(Color.BLACK);
frame.add(label);
frame.add(new JSeparator());
frame.add(btn1);
frame.add(btn2);
frame.add(btn3);
frame.add(btn4);
frame.add(btn5);
frame.pack();
frame.setVisible(true);
}}
screen shot :
enter image description here
I would love to get a new page inside the page that get opens for each buttons and inside I will write the menu of the food to select and near to it have the prices written ?? please help me I couldn't not do it at all and can know how ...
Thanks

You can use JPanel to draw things inside other Containers. (JPanel and JFrame are Containers)
But u said u just want to write text. So u can use a JTextArea.
Javadoc will help u.

As noted in the comments by Emz, a CardLayout is the best fist for this scenario. Create a JPanel for each of the menus and add them to a JPanel with CardLayout. Then use the buttons to switch between the panels.
Here is an example:
public class Example extends JPanel {
Example() {
JPanel starters = new JPanel(new FlowLayout());
starters.add(new JLabel("starters..."));
JPanel drinks = new JPanel(new FlowLayout());
drinks.add(new JLabel("drinks..."));
JPanel main = new JPanel(new CardLayout());
main.add(starters, "starters");
main.add(drinks, "drinks");
JPanel buttons = new JPanel();
JButton startersButton = new JButton("Starters");
startersButton.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
CardLayout cl = (CardLayout)(main.getLayout());
cl.show(main, "starters");
}
});
JButton drinksButton = new JButton("Starters");
drinksButton.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
CardLayout cl = (CardLayout)(main.getLayout());
cl.show(main, "drinks");
}
});
buttons.add(startersButton);
buttons.add(drinksButton);
setLayout(new BorderLayout());
add(main);
add(buttons, BorderLayout.PAGE_START);
}
}
Add to a frame and run.

Related

How do you add a JPanel from another class to a panel with CardLayout?

I'm working on a group project and I'm the one making the GUI figuring it'd be good to practice with it. The program is supposed to be a pizza ordering system (pretty standard stuff) and what I'm trying to accomplish is that I have a main class that creates an application window. Inside this window is a panel that uses CardLayout with a button that when pressed calls another JPanel from another class dedicated specifically to that panel and places it as a card in the layout to be swapped back and forth from as normal.
What I have so far are the different panels I wish to call and the main class which has the window and main card panel. I can have it swap easily between panels created within the main class but when I try to use the panels from the other classes it just swaps to a blank panel when it should show the other class's panel.
The main class
package PizzaGUI;
import java.awt.EventQueue;
import java.awt.CardLayout;
import javax.swing.JFrame;
import javax.swing.*;
import java.awt.event.*;
import java.awt.Font;
public class PizzaSystem {
private JFrame frame;
Toppings toppingsPanel;
MainMenu menuPanel;
JButton loginBtn;
JPanel mainPanel;
CardLayout cl;
//MAIN
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
PizzaSystem window = new PizzaSystem();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
//Constructor
public PizzaSystem() {
initialize();
}
//Initialize the GUI
private void initialize() {
cl = new CardLayout();
frame = new JFrame();
frame.setBounds(100, 100, 893, 527);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
mainPanel = new JPanel();
mainPanel.setBounds(10, 10, 859, 470);
frame.getContentPane().add(mainPanel);
mainPanel.setLayout(cl);
JPanel panel_2 = new JPanel();
mainPanel.add(panel_2, "test");
panel_2.setLayout(null);
JLabel lblNewLabel = new JLabel("It Worked");
lblNewLabel.setFont(new Font("Tahoma", Font.PLAIN, 45));
lblNewLabel.setBounds(282, 118, 312, 103);
panel_2.add(lblNewLabel);
JPanel panel_1 = new JPanel();
loginBtn = new JButton();
loginBtn.setText("Login");
loginBtn.setBounds(175, 72, 199, 154);
loginBtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
showCard("menu");
}
});
panel_1.add(loginBtn);
mainPanel.add(panel_1, "loginPanel");
JPanel menuPanel = new MainMenu();
mainPanel.add(menuPanel, "menu");
showCard("loginPanel");
}
//Call card matching the key
public void showCard(String key) {
cl.show(mainPanel, key);
}
}
and one of the classes with the panel (format is messed up but should work still)
package PizzaGUI;
import java.awt.Color;
import java.awt.Font;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTextArea;
import javax.swing.SwingConstants;
import javax.swing.border.BevelBorder;
public class MainMenu extends JPanel {
public MainMenu() {
JPanel panel1 = new JPanel();
panel1.setBounds(100, 100, 893, 572);
panel1.setBackground(Color.PINK);
panel1.setLayout(null);
panel1.setVisible(true);
JLabel logoLabel = new JLabel("");
logoLabel.setBounds(10, 10, 100, 110);
panel1.add(logoLabel);
ImageIcon image1 = new ImageIcon("C:\\Users\\thera\\eclipse-workspace\\PizzaSystem\\Images\\MamaJane1.png");
logoLabel.setIcon(new ImageIcon("C:\\Users\\thera\\eclipse-workspace\\PizzaSystem\\Images\\MamaJane.png"));
JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.TOP);
tabbedPane.setBounds(133, 113, 548, 402);
tabbedPane.setBorder(new BevelBorder(BevelBorder.LOWERED, null, null, null, null));
tabbedPane.setBackground(Color.PINK);
tabbedPane.setForeground(Color.GRAY);
tabbedPane.setFont(new Font("Tahoma", Font.PLAIN, 20));
tabbedPane.setToolTipText("");
panel1.add(tabbedPane);
JPanel panel = new JPanel();
tabbedPane.addTab("MENU", null, panel, null);
panel.setLayout(null);
//*******************************************************************************************************
//Pepperoni menu section
JLabel pizza1Image = new JLabel("IMAGE");
pizza1Image.setBounds(6, 25, 100, 100);
panel.add(pizza1Image);
ImageIcon image2 = new ImageIcon("C:\\Users\\thera\\eclipse-workspace\\PizzaSystem\\Images\\Pepperoni.jpg");
Image pizza1 = image2.getImage();
Image pepperoni = pizza1.getScaledInstance(100, 100, java.awt.Image.SCALE_SMOOTH);
image2 = new ImageIcon(pepperoni);
pizza1Image.setIcon(image2);
JLabel pepperoniLabel = new JLabel("PEPPERONI");
pepperoniLabel.setHorizontalAlignment(SwingConstants.CENTER);
pepperoniLabel.setBounds(110, 25, 86, 48);
pepperoniLabel.setFont(new Font("Tahoma", Font.PLAIN, 12));
panel.add(pepperoniLabel);
JButton pepperoniOrderBtn = new JButton("ORDER");
pepperoniOrderBtn.setBounds(110, 79, 86, 47);
panel.add(pepperoniOrderBtn);
pepperoniOrderBtn.addActionListener( new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
//Pepperoni End
JButton accountButton = new JButton("Account");
accountButton.setBounds(10, 414, 113, 39);
accountButton.setBackground(Color.WHITE);
panel.add(accountButton);
JButton checkoutButton = new JButton("Checkout");
checkoutButton.setBounds(713, 438, 138, 31);
panel.add(checkoutButton);
JButton logoutButton = new JButton("Logout");
logoutButton.setBounds(10, 463, 113, 52);
panel.add(logoutButton);
JTextArea txtrOrderInfoGoes = new JTextArea();
txtrOrderInfoGoes.setBounds(703, 10, 154, 418);
txtrOrderInfoGoes.setText("Order Info\r\nGoes Here\r\n\r\nPepperoni Pizza x1\r\n$6.50");
panel.add(txtrOrderInfoGoes);
JButton clearOrderButton = new JButton("Clear");
clearOrderButton.setBounds(723, 479, 113, 36);
panel.add(clearOrderButton);
JLabel titleLabel = new JLabel("MAMA JANE'S PIZZERIA");
titleLabel.setBounds(147, 10, 534, 65);
panel.add(titleLabel);
titleLabel.setFont(new Font(titleLabel.getFont().getName(), Font.PLAIN, 50));
JLabel storeInfoLabel = new JLabel("<html>1234 Fakelane Rd <br> 10001, Faketopia, USA <br> 111-11-PIZZA <br> Mon-Fri 11AM to 10pm <br> Sat-Sun 10AM to 11pm");
storeInfoLabel.setBounds(10, 130, 113, 274);
panel.add(storeInfoLabel);
JScrollPane scrollPane = new JScrollPane();
scrollPane.setBounds(406, 85, 2, 2);
panel.add(scrollPane);
logoutButton.addActionListener( new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
}
}
I can't tell where I've gone wrong and I've spent roughly the last three hours trying to fix this and searching the internet for answers to no avail so thank you in advance if you can help me out.
Also I apologize in advance, I know I end up misusing the proper terminology for programming alot, I understand what things are just forget what to properly call them sometimes.
So, basically, I took out all the null layouts and "manual" layout code, as it's just going to mess with you to no end AND added add(panel1); to the end of the MainMenu constructor - as, I've said, NOTHING was added to MainMenu, so, nothing was going to get displayed.
Before you tell me that "this isn't the layout I want", understand that I understand that, but my point is, null layouts are a really bad idea, as almost the entire Swing API relies the layout managers in one way or another.
I appreciate that layout management can seem like a complex subject, but it solves some very complex problems and it's worth taking the time to learn them. Remember, you're not stuck to a single layout manager, you can use component components to adjust individual containers to their individual needs.
You can take a look at:
Layout using Java Swing
Which Layout Manager to use?
How I can do swing complex layout Java
How to use Java Swing layout manager to make this GUI?
*Which java swing layout should I use
to some ideas how you might approach designing a complex UI.
You should also take a look at Laying Out Components Within a Container
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTextArea;
import javax.swing.SwingConstants;
public class PizzaSystem {
private JFrame frame;
// Toppings toppingsPanel;
MainMenu menuPanel;
JButton loginBtn;
JPanel mainPanel;
CardLayout cl;
//MAIN
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
PizzaSystem window = new PizzaSystem();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
//Constructor
public PizzaSystem() {
initialize();
}
//Initialize the GUI
private void initialize() {
cl = new CardLayout();
frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainPanel = new JPanel(cl);
frame.getContentPane().add(mainPanel);
JPanel panel_1 = new JPanel(new GridBagLayout());
loginBtn = new JButton();
loginBtn.setText("Login");
loginBtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
showCard("menu");
}
});
panel_1.add(loginBtn);
mainPanel.add(panel_1, "loginPanel");
JPanel menuPanel = new MainMenu();
mainPanel.add(menuPanel, "menu");
frame.pack();
showCard("loginPanel");
}
//Call card matching the key
public void showCard(String key) {
cl.show(mainPanel, key);
}
public class MainMenu extends JPanel {
public MainMenu() {
JPanel panel1 = new JPanel(new BorderLayout());
JLabel logoLabel = new JLabel("Logo");
panel1.add(logoLabel, BorderLayout.NORTH);
JTabbedPane tabbedPane = new JTabbedPane(JTabbedPane.TOP);
tabbedPane.setToolTipText("");
panel1.add(tabbedPane, BorderLayout.CENTER);
JPanel panel = new JPanel();
tabbedPane.addTab("MENU", null, panel, null);
//*******************************************************************************************************
//Pepperoni menu section
JLabel pizza1Image = new JLabel("IMAGE");
panel.add(pizza1Image);
JLabel pepperoniLabel = new JLabel("PEPPERONI");
pepperoniLabel.setHorizontalAlignment(SwingConstants.CENTER);
panel.add(pepperoniLabel);
JButton pepperoniOrderBtn = new JButton("ORDER");
pepperoniOrderBtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
//Pepperoni End
JButton accountButton = new JButton("Account");
panel.add(accountButton);
JButton checkoutButton = new JButton("Checkout");
panel.add(checkoutButton);
JButton logoutButton = new JButton("Logout");
panel.add(logoutButton);
JTextArea txtrOrderInfoGoes = new JTextArea(10, 20);
txtrOrderInfoGoes.setText("Order Info\r\nGoes Here\r\n\r\nPepperoni Pizza x1\r\n$6.50");
panel.add(txtrOrderInfoGoes);
JButton clearOrderButton = new JButton("Clear");
panel.add(clearOrderButton);
JLabel titleLabel = new JLabel("MAMA JANE'S PIZZERIA");
panel.add(titleLabel);
titleLabel.setFont(new Font(titleLabel.getFont().getName(), Font.PLAIN, 50));
JLabel storeInfoLabel = new JLabel("<html>1234 Fakelane Rd <br> 10001, Faketopia, USA <br> 111-11-PIZZA <br> Mon-Fri 11AM to 10pm <br> Sat-Sun 10AM to 11pm");
panel.add(storeInfoLabel);
JScrollPane scrollPane = new JScrollPane();
panel.add(scrollPane);
logoutButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
add(panel1);
}
}
}

JLabel text bigger than JLabel size and turning to "..."

I'm really new to Java, and I wanted to make a simple GUI with a button which counts when you click it, I followed this tutorial on YouTube to get there. It went really nicely and everything worked. But one thing didn't, the end of the JLabel text goes from a number (9), to ....
Resizing the window manually brings the number back, so I tried resizing the font, window, button, and label sizes in the code when it launches, which does work, but I still get the same problem.
This is my code for the button:
JButton button = new JButton("Click me!");
button.addActionListener(this);
...which I believe would call this:
public void actionPerformed(ActionEvent e) {
count++;
label.setText("Number of clicks: " + count);
}
I've tried some other solutions on other questions but they haven't helped at all.
My full code for the GUI is this:
package javaGUI;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class GUI implements ActionListener {
private int count = 0;
private JLabel label;
private JFrame frame;
private JPanel panel;
public GUI() {
frame = new JFrame();
JButton button = new JButton("Click me!");
button.addActionListener(this);
button.setPreferredSize(new Dimension(10, 75));
label = new JLabel("Number of clicks: 0");
label.setFont(new Font("System", Font.PLAIN, 22));
panel = new JPanel();
panel.setBorder(BorderFactory.createEmptyBorder(60, 100, 30, 100));
panel.setLayout(new GridLayout(0, 1));
panel.add(button);
panel.add(label);
frame.add(panel, BorderLayout.CENTER);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setTitle("GUI");
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) {
new GUI();
}
#Override
public void actionPerformed(ActionEvent e) {
count++;
label.setText("Number of clicks: " + count);
label.setHorizontalTextPosition(JLabel.CENTER);
label.setVerticalTextPosition(JLabel.CENTER);
}
}
When the frame is "packed" before it is made visible all the components are displayed at their preferred size.
The problem is that when you need to display multiple digits in the label, the labels preferred size increases but there is not enough space in the frame to display the label text completely so the text is truncated.
So the solution is to pack() the frame so the components in the GridLayout can once again be displayed at their preferred size:
label.setText("Number of clicks: " + count);
frame.pack();
Also note you should not set label properties in the ActionListener. The following properties should be set when you create the Label:
label = new JLabel("Number of clicks: 0");
label.setHorizontalTextPosition(JLabel.CENTER);
label.setVerticalTextPosition(JLabel.CENTER);
Basically, you have to give the JLabel room to grow.
Here's one way to do it.
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class ClickMe implements ActionListener, Runnable {
public static void main(String[] args) {
SwingUtilities.invokeLater(new ClickMe());
}
private int count = 0;
private JLabel label;
private JFrame frame;
#Override
public void run() {
frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setTitle("Click Me");
JPanel buttonPanel = new JPanel();
JButton button = new JButton("Click me!");
button.addActionListener(this);
button.setFont(new Font("System", Font.PLAIN, 22));
button.setPreferredSize(new Dimension(300, 75));
buttonPanel.add(button);
frame.add(buttonPanel, BorderLayout.CENTER);
JPanel labelPanel = new JPanel();
label = new JLabel("Number of clicks: 0");
label.setFont(new Font("System", Font.PLAIN, 22));
label.setHorizontalTextPosition(JLabel.CENTER);
label.setVerticalTextPosition(JLabel.CENTER);
labelPanel.add(label);
frame.add(labelPanel, BorderLayout.AFTER_LAST_LINE);
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
}
#Override
public void actionPerformed(ActionEvent e) {
count++;
label.setText("Number of clicks: " + count);
}
}

No error shown but JButton and Label can't be seen

I'm new to coding and I am facing this problem where it doesn't show the JButton and JLabel that i added in the GUI. What have i done wrong and how do i fix it?
import java.awt.ComponentOrientation;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JLabel;
public class MainMenu {
public static void main (String []args) {
JFrame frame = new JFrame ("Main Menu");
frame.setSize(480,720);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel panel = new JPanel();
panel.setLayout(new GridLayout(3,2,5,5));
JButton meals = new JButton ("Meals");
JLabel label = new JLabel ("Welcome back!");
panel.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
panel.add(meals);
panel.add(label);
frame.add(panel);
}
}
That happens because you frame.setVisible(true); before adding any components to it. You should add the components to the frame first, and then, use the setVisible method.
panel.add(meals);
panel.add(label);
frame.add(panel);
frame.setVisible(true); //visible after components added
Fixed version of your code below. Hopefully it works. I tested it in my IDE.
import java.awt.ComponentOrientation;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JLabel;
public class MainMenu {
public static void main(String[] args) {
JFrame frame = new JFrame("Main Menu");
JPanel panel = new JPanel();
panel.setLayout(new GridLayout(3, 2, 5, 5));
JButton meals = new JButton("Meals");
JLabel label = new JLabel("Welcome back!");
panel.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
panel.add(meals);
panel.add(label);
frame.add(panel);
frame.setSize(480, 720);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}

I can't move the buttons to the bottom - JFrame

I tried using GridLayout and BorderLayout but could not make my Buttons go below the mouth of the dog (picture). After making the button below the dog mouth, how do I add function to the buttons? For Settings, how do I make it open another window after I clicked on it and I can close the settings window instead of the whole thing. Thank you!
Here is my code:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.border.*;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
class Codegi extends JFrame {
public Codegi() {
JFrame frame = new JFrame();
try {
frame.setContentPane(new JLabel(new ImageIcon(ImageIO.read(new File("enter image description here[1]")))));
} catch (IOException e) {
e.printStackTrace();
}
frame.pack();
frame.setLayout(new FlowLayout());
JPanel p1 = new JPanel();
JPanel p2 = new JPanel();
p1.setOpaque(false);
p2.setOpaque(false);
p1.setLayout(new BorderLayout(0, 20));
//JButton b1 = new JButton("START");
//JButton b2 = new JButton("SETTINGS");
p2.add(p1);
p1.add(new JButton("SETTINGS"), BorderLayout.SOUTH);
p1.add(new JButton("START"), BorderLayout.CENTER);
//p1.add(b1);
//p1.add(b2);
frame.add(p2);
//design of button
//Font largefont = new Font("TimesRoman", Font.BOLD, 20);
//b1.setBackground(Color.ORANGE);
//b2.setBackground(Color.ORANGE);
//b1.setForeground(Color.BLACK);
//b2.setForeground(Color.BLACK);
//b1.setFont(largefont);
//b2.setFont(largefont);
frame.setTitle("Codegi:Programming made fun");
frame.setSize(498, 687);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
setSize(467, 627);
}
public static void main(String args[]) {
new Codegi();
}
}
Screenshot
Set the layout to null
view.setLayout(null);
and then set the position of buttons like below
btn.setBounds(starting x-coordinate,starting y-coordinate,btn width,btn height);
remove panels by setVisible(false);
and show new ones with setVisible(true); on btn click event

Centering image in a JFrame?

I'm creating an about JFrame for my program. I have an icon which I used for the program and I have that show up as the first thing on the about JFrame, but I'm having issues trying to center the image. If I do some kind of centering it screws up the whole alignment of everything else.
I'm trying to have all the JLabels, other than the icon, to be left aligned. Then have the icon aligned to the center.
I had to remove some personal information, whatever I did remove I put them between "[]".
import java.awt.Dimension;
import java.awt.Font;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
public class About extends JFrame {
public About() {
super("About [PROGRAM]");
setIconImage([PROGRAM].getInstance().setIcon());
JPanel main = new JPanel();
main.setLayout(new BoxLayout(main, BoxLayout.Y_AXIS));
main.setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
JLabel icon = new JLabel("", new ImageIcon(getClass().getResource(Constants.ICON_FULL)), JLabel.CENTER);
JLabel name = new JLabel("[PROGRAM]");
JLabel expandedName = new JLabel("[PROGRAM DESCRIPTION]");
JLabel copyright = new JLabel("[COPYRIGHT JUNK]");
JLabel credits = new JLabel("[CREDITS]");
name.setFont(new Font(name.getFont().getFamily(), Font.BOLD, 18));
copyright.setBorder(BorderFactory.createEmptyBorder(0,0,10,0));
main.add(icon);
main.add(Box.createRigidArea(new Dimension(0, 10)));
main.add(name);
main.add(expandedName);
main.add(copyright);
main.add(credits);
add(main);
pack();
setLocationRelativeTo(null);
setVisible(true);
}
}
Consider using some layouts to help you out. Ones that come to mind include BorderLayout with the icon in the BorderLayout.CENTER position. You can stack stuff on one side using a BoxLayout using JPanel that is added to the main BorderLayout-using JPanel.
e.g.,
import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.*;
#SuppressWarnings("serial")
public class About extends JDialog {
public static final String IMAGE_PATH = "http://upload.wikimedia.org/wikipedia/"
+ "commons/thumb/3/39/European_Common_Frog_Rana_temporaria.jpg/"
+ "800px-European_Common_Frog_Rana_temporaria.jpg";
public About(JFrame frame) {
super(frame, "About [PROGRAM]", true);
ImageIcon myIcon = null;
try {
URL imgUrl = new URL(IMAGE_PATH);
BufferedImage img = ImageIO.read(imgUrl);
myIcon = new ImageIcon(img);
} catch (MalformedURLException e) {
e.printStackTrace();
System.exit(-1);
} catch (IOException e) {
e.printStackTrace();
System.exit(-1);
}
JPanel main = new JPanel(new BorderLayout());
main.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
JLabel centerLabel = new JLabel(myIcon);
JLabel name = new JLabel("[PROGRAM]");
JLabel expandedName = new JLabel("[PROGRAM DESCRIPTION]");
JLabel copyright = new JLabel("[COPYRIGHT JUNK]");
JLabel credits = new JLabel("[CREDITS]");
name.setFont(new Font(name.getFont().getFamily(), Font.BOLD, 18));
copyright.setBorder(BorderFactory.createEmptyBorder(0, 0, 10, 0));
int eb = 20;
centerLabel.setBorder(BorderFactory.createEmptyBorder(eb, eb, eb, eb));
JPanel leftPanel = new JPanel();
leftPanel.setLayout(new BoxLayout(leftPanel, BoxLayout.PAGE_AXIS));
leftPanel.add(name);
leftPanel.add(Box.createVerticalGlue());
leftPanel.add(expandedName);
leftPanel.add(copyright);
leftPanel.add(credits);
leftPanel.add(Box.createVerticalGlue());
main.add(centerLabel, BorderLayout.CENTER);
main.add(leftPanel, BorderLayout.LINE_START);
add(main);
pack();
}
public static void main(String[] args) {
final JFrame frame = new JFrame("GUI");
JPanel panel = new JPanel();
panel.add(new JButton(new AbstractAction("About") {
#Override
public void actionPerformed(ActionEvent e) {
About about = new About(frame);
about.setLocationRelativeTo(frame);
about.setVisible(true);
}
}));
frame.add(panel);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}

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