import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; public class RoseJFrame extends JFrame implements ActionListener, ChangeListener, WindowListener { private JButton button; protected JCheckBox[] checkbox; private Color color; private JSpinner spin; protected Canvas canvas; public RoseJFrame() { super(“Four-leaf rose line”); Dimension dim=this.getToolkit().getScreenSize(); this.setBounds(dim.width/4,dim.height/4,dim.width/2,dim.height/2); this.setLocationRelativeTo(null); this.setDefaultCloseOperation(EXIT_ON_CLOSE); JPanel cmdpanel = new JPanel(); this.getContentPane().add(cmdpanel,”North”); cmdpanel.add(this.button=new JButton(“Select Color”)); this.button.addActionListener(this); String[] […]
Tag: swing
Greedy Algorithm: Distributing Cookies, Swing Sequence, Maximum Subsequence Sum
1. Theoretical basis of greedy algorithm What is greed The essence of greed is to select the local optimum at each stage to achieve the global optimum. Greedy routine (when to use greedy) There is no fixed formula for greed. The only difficulty is how to derive the overall optimal through local optimal. The best […]
Text replacement gadget developed using swing
Preface: In daily work, there are some frequently used texts that need to be replaced with certain changed fields, so we developed this small tool that can be used to replace specified values and automatically copy the replaced values to in the clipboard. Instructions for use: 1. Create a new text with the following content: […]
Design and implementation of maze game based on JavaSwing
Table of contents 1. Problem Description 1 1 Course Design Topic 1 2 Course design requirements 1 2. Requirements Analysis 2 Three Outline Design 3 1 Program interface design 3 2 Overall functional framework 3 Four Detailed Design 5 1 Data structure design 5 2 Specific module design 6 1 game module 6 2 File […]
ChatGPT: How to use Java to call up the file selector and then return the location and name of the file? Swing Components and AWT Components: Differences in Java GUI Programming
ChatGPT: How to use Java to call up the file selector and then return the location and name of the file? Swing Components and AWT Components: Differences in Java GUI Programming How to use Java to call up the file selector and then return the location and name of the file ChatGPT: In Java, you […]
Swing does not display label text after being packaged with exe4j and run
Exception in thread “AWT-EventQueue-0” java.lang.ArrayIndexOutOfBoundsException: Array index out of range: 1 at java.base/java.util.Vector.get(Vector.java:750) at ui.OrderFormWindow.button1MouseClicked(OrderFormWindow.java:50) at ui.OrderFormWindow$1.mouseClicked(OrderFormWindow.java:88) at java.desktop/java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:278) at java.desktop/java.awt.Component.processMouseEvent(Component.java:6629) at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3389) at java.desktop/java.awt.Component.processEvent(Component.java:6391) at java.desktop/java.awt.Container.processEvent(Container.java:2266) at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5001) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4833) at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4948) at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4584) at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4516) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2310) at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2780) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4833) at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:773) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:722) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:716) at java.base/java.security.AccessController.doPrivileged(AccessController.java:399) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86) […]
Swing+mysql invoicing system based on java+mysql (java+gui)
Swing + mysql invoicing system based on java + mysql (java + gui) Operating environment Java≥8, MySQL≥5.7 development tools eclipse/idea/myeclipse/sts, etc. can be configured to run Be applicable Course design, major assignments, graduation design, project exercises, learning presentations, etc. Function Description Swing + MySQL Invoicing System (java + gui) based on java + mysql Features: […]
Swing+java+mysql restaurant online ordering system based on java+mysql (administrator, user)
Swing + java + mysql restaurant online ordering system based on java + mysql (administrator, user) Operating environment Java≥8, MySQL≥5.7 development tools eclipse/idea/myeclipse/sts, etc. can be configured to run Be applicable Course design, major assignments, graduation design, project exercises, learning presentations, etc. Function Description Backstage management admin/123456 Order food at the front desk user1/123456 Swing […]
Swing+mysql property charging system based on java+mysql (java+gui)
Swing + mysql property charging system based on java + mysql (java + gui) Operating environment Java≥8, MySQL≥5.7 development tools eclipse/idea/myeclipse/sts, etc. can be configured to run Be applicable Course design, major assignments, graduation design, project exercises, learning presentations, etc. Function Description Swing + MySQL property charging system based on java + mysql (java + […]
Swing+mysql property charging system based on java+mysql (java+gui)
Swing + mysql property charging system based on java + mysql (java + gui) operating environment Java≥8, MySQL≥5.7 development tools eclipse/idea/myeclipse/sts can be configured to run Be applicable Course design, major assignments, graduation design, project exercises, learning presentations, etc. Function Description Swing + MySQL property charging system based on java + mysql (java + gui) […]