Java基于线程实现带有滚动效果的Label标签实例

本文实例讲述了java基于线程实现带有滚动效果的label标签。分享给大家供大家参考。具体如下：

import java.awt.graphics;
import javax.swing.jframe;
import javax.swing.jlabel;
import javax.swing.jpanel;
/**
 * java中用线程实现带有滚动效果的label标签
 */
public class test extends jframe {
 private static final long serialversionuid = -2397593626990759111l;
 private jpanel pane = null;
 private movelabel label = null;
 public test() {
 super("test");
 pane = new jpanel();
 label = new movelabel("带有滚动效果的标签");
 pane.add(label);
 this.getcontentpane().add(pane);
 this.setdefaultcloseoperation(jframe.exit_on_close);
 this.setsize(300, 200);
 this.setvisible(true);
 }
 public static void main(string args[]) {
 new test();
 }
 /**
 * 带有滚动效果的label标签，可继续拓展很多特效，例如颜色变换、速度变换等
 */
 private class movelabel extends jlabel implements runnable {
 private static final long serialversionuid = 1891684760189602720l;
 private string text = null;
 private thread thread = null;
 private int x = 0;
 private int w = 0, h = 0;
 public movelabel(string text) {
  super(text);
  this.text = text;
  thread = new thread(this);
  thread.start();
 }
 public string gettext() {
  return text;
 }
 public void settext(string text) {
  super.settext(text);
  this.text = text;
 }
 protected void paintcomponent(graphics g) {
  super.paintcomponent(g);
  g.setcolor(this.getbackground());
  g.fillrect(0, 0, w = this.getwidth(), h = this.getheight());
  g.setcolor(this.getforeground());
  g.setfont(this.getfont());
  g.drawstring(text, x, h - 2);
 }
 public void run() {
  while (true) {
  x -= 2;
  if (x < -w) {
   x = w;
  }
  this.repaint();
  try {
   thread.sleep(50);
  } catch (interruptedexception e) {
   e.printstacktrace();
  }
  }
 }
 }
}

希望本文所述对大家的java程序设计有所帮助。