将table 变成透明 有一个表格 默认显示的是白色 想让表格透明 怎么写呢 table.setShowGrid(false);//不显示边框 table.setOpaque(false);//这个好像不管用望高手指点 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 我这里有一个让窗口Window整个透明的,你可以看看import java.awt.BorderLayout;import java.awt.Color;import java.awt.Container;import java.awt.Dimension;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.geom.RoundRectangle2D;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JSlider;import javax.swing.border.LineBorder;import javax.swing.event.ChangeEvent;import javax.swing.event.ChangeListener;import com.sun.jna.examples.WindowUtils;/** * Transparent JFrame use JNA * * @author ruislan <a href="mailto:[email protected]"/> * @version 0.1.0 */public class TransparentFrame { private JFrame frame; private JPanel container; private JSlider slider; private JPanel titleBar; private JLabel titleLabel; private JButton closeButton; public static void main(String[] args) { new TransparentFrame().launch(); } private void launch() { createUI(); launchUI(); } protected void launchUI() { frame.setVisible(true); } protected void createUI() { System.setProperty("sun.java2d.noddraw", "true"); frame = new JFrame(); frame.setSize(200, 150); frame.setAlwaysOnTop(true); frame.setUndecorated(true); container = new JPanel(); frame.setContentPane(container); container.setLayout(new BorderLayout()); container.add(new JLabel("Ubunto vs Vista, I like both."), BorderLayout.CENTER); container.setBorder(new LineBorder(Color.BLACK)); titleBar = new JPanel(); titleBar.setLayout(new BorderLayout()); titleLabel = new JLabel("JNA is great!"); titleBar.add(titleLabel, BorderLayout.CENTER); titleBar.setBorder(new LineBorder(Color.GRAY)); closeButton = new JButton("X"); closeButton.setFocusPainted(false); closeButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { System.exit(0); } }); titleBar.add(closeButton, BorderLayout.EAST); container.add(titleBar, BorderLayout.NORTH); slider = new JSlider(0, 100); slider.setValue(100); slider.addChangeListener(new ChangeListener() { public void stateChanged(ChangeEvent e) { float value = slider.getValue(); WindowUtils.setWindowAlpha(frame, value * 0.01f); } }); container.add(slider, BorderLayout.SOUTH); RoundRectangle2D.Float mask = new RoundRectangle2D.Float(0, 0, frame.getWidth(), frame.getHeight(), 20, 20); WindowUtils.setWindowMask(frame, mask); centerWindow(frame); } public static void centerWindow(Container window) { Dimension dim = Toolkit.getDefaultToolkit().getScreenSize(); int w = window.getSize().width; int h = window.getSize().height; int x = (dim.width - w) / 2; int y = (dim.height - h) / 2; window.setLocation(x, y); }}需要的类从这里下载,jna.jar 和 examples.jarhttps://jna.dev.java.net/servlets/ProjectDocumentList?folderID=7408&expandFolder=7408&folderID=0 计算机能表示最大的整数的方法 Socket 接收数组,然后解析,麻烦大家帮我优化优化 新人初到宝地~~~散分了 求助:我想做一个要使用扫描仪的java桌面程序,请问需要什么类包? 【讨论】有关接口和抽象类的问题 applet插入jsp后出现了问题. 寻书,大侠帮忙! jna调用c的dll中函数原型的问题,在线等。 很诡异的问题,代码报错居然导致以后写的代码都无法加载主类 面试题 循环问题,急急急! java与VC程序网络通信,如果把双方数据转换成各方都可识别的类型?
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.RoundRectangle2D;import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSlider;
import javax.swing.border.LineBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;import com.sun.jna.examples.WindowUtils;/**
* Transparent JFrame use JNA
*
* @author ruislan <a href="mailto:[email protected]"/>
* @version 0.1.0
*/
public class TransparentFrame {
private JFrame frame; private JPanel container; private JSlider slider; private JPanel titleBar; private JLabel titleLabel; private JButton closeButton; public static void main(String[] args) {
new TransparentFrame().launch();
} private void launch() {
createUI();
launchUI();
} protected void launchUI() {
frame.setVisible(true);
} protected void createUI() {
System.setProperty("sun.java2d.noddraw", "true");
frame = new JFrame();
frame.setSize(200, 150);
frame.setAlwaysOnTop(true);
frame.setUndecorated(true); container = new JPanel();
frame.setContentPane(container);
container.setLayout(new BorderLayout());
container.add(new JLabel("Ubunto vs Vista, I like both."), BorderLayout.CENTER);
container.setBorder(new LineBorder(Color.BLACK)); titleBar = new JPanel();
titleBar.setLayout(new BorderLayout());
titleLabel = new JLabel("JNA is great!");
titleBar.add(titleLabel, BorderLayout.CENTER);
titleBar.setBorder(new LineBorder(Color.GRAY));
closeButton = new JButton("X");
closeButton.setFocusPainted(false);
closeButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
titleBar.add(closeButton, BorderLayout.EAST);
container.add(titleBar, BorderLayout.NORTH); slider = new JSlider(0, 100);
slider.setValue(100);
slider.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
float value = slider.getValue();
WindowUtils.setWindowAlpha(frame, value * 0.01f);
}
});
container.add(slider, BorderLayout.SOUTH);
RoundRectangle2D.Float mask = new RoundRectangle2D.Float(0, 0, frame.getWidth(), frame.getHeight(), 20, 20);
WindowUtils.setWindowMask(frame, mask);
centerWindow(frame); } public static void centerWindow(Container window) {
Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();
int w = window.getSize().width;
int h = window.getSize().height;
int x = (dim.width - w) / 2;
int y = (dim.height - h) / 2;
window.setLocation(x, y);
}
}需要的类从这里下载,jna.jar 和 examples.jar
https://jna.dev.java.net/servlets/ProjectDocumentList?folderID=7408&expandFolder=7408&folderID=0