Example code (drawHexagon.java): importjavax.swing.JFrame;publicclassdrawHexagon{publicstaticvoidmain(String[]args){JFrame frame=newJFrame("Draw Hexagon");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.add(newhexagon());frame.pack();frame.setLocationRelativeTo(null);frame.setVisible(...
At last, we extendJFramefrom thejavax.swingpackage to create a window frame with the specified size and properties. importjava.awt.*;importjavax.swing.*;publicclassDrawCircleextendsJFrame{publicDrawCircle(){setTitle("Drawing a Circle");setSize(400,400);setVisible(true);setDefaultCloseOperation(EX...
Back to JTable ↑ Question We would like to know how to add JTable to Panel. Answer importjava.awt.Dimension;importjava.awt.event.ActionEvent;//www.java2s.comimportjavax.swing.AbstractAction;importjavax.swing.JButton;importjavax.swing.JOptionPane;importjavax.swing.JPanel;importjavax.swing.JScrollPa...
JavaSwing添加背景图片 代码整理 将标签设置为图片标签实现 /** * @author how * JavaSwing测试插入背景图片 * 2020/1/19 */ import java.awt.*; import javax.swing.*; public class Backgroun
Question We would like to know how to create DefaultTableModel from two dimensional array. Answer /*www.java2s.com*/importjava.awt.BorderLayout;importjava.awt.event.WindowAdapter;importjava.awt.event.WindowEvent;importjavax.swing.JFrame;importjavax.swing.JScrollPane;importjavax.swing.JTable;impor...
下面的示例演示如何使用Graphics2D类的draw()方法绘制一条线,并将Line2D对象作为参数。 import java.awt.*; import java.awt.event.*; import java.awt.geom.Line2D; import javax.swing.JApplet; import javax.swing.JFrame; public class Main extends JApplet { ...
import java.awt.Color; import java.awt.EventQueue; import java.awt.Graphics; import javax.swing.JFrame; import javax.swing.JPanel; public class LinePaintDemo extends JPanel{ @Override protected void paintComponent(Graphics g) { super.paintComponent(g); g.setColor(Color.BLUE); g.drawLine(getWid...
JLabel label;publicstaticvoidmain(String[] args){newJavaSwing(); } JavaSwing(){//程序从构造方法开始执行setTitle("一个窗口"); init();//初始化setVisible(true); setDefaultCloseOperation(EXIT_ON_CLOSE); }voidinit(){ setLayout(null);//空布局(可以任意摆放控件)setBounds(450,200,400,300); ...
package jpopupmenudemo;importjavax.swing.*;importjava.awt.event.*; publicclassMain{ publicstaticvoidmain(String[] args) { final JFrame frame =newJFrame("Popup Menu Demo");// build poup menufinal JPopupMenu popup =newJPopupMenu();// New project menu itemJMenuItem menuItem =newJMenuItem...
A swing JDialog class inherits this behavior from the AWT Dialog class. A Dialog can be modal. When a modal Dialog is visible, it blocks user input to all other windows in the program. JOptionPane creates JDialogs that are modal. To create a non-modal Dialog, you must use the JDialog...