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：
importjava.awt.Graphics;
importjavax.swing.JFrame;
importjavax.swing.JLabel;
importjavax.swing.JPanel;
/**
*Java中用线程实现带有滚动效果的Label标签
*/
publicclassTestextendsJFrame{
privatestaticfinallongserialVersionUID=-2397593626990759111L;
privateJPanelpane=null;
privateMoveLabellabel=null;
publicTest(){
super("Test");
pane=newJPanel();
label=newMoveLabel("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);
}
publicstaticvoidmain(Stringargs[]){
newTest();
}
/**
*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
*/
privateclassMoveLabelextendsJLabelimplementsRunnable{
privatestaticfinallongserialVersionUID=1891684760189602720L;
privateStringtext=null;
privateThreadthread=null;
privateintx=0;
privateintw=0,h=0;
publicMoveLabel(Stringtext){
super(text);
this.text=text;
thread=newThread(this);
thread.start();
}
publicStringgetText(){
returntext;
}
publicvoidsetText(Stringtext){
super.setText(text);
this.text=text;
}
protectedvoidpaintComponent(Graphicsg){
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);
}
publicvoidrun(){
while(true){
x-=2;
if(x<-w){
x=w;
}
this.repaint();
try{
Thread.sleep(50);
}catch(InterruptedExceptione){
e.printStackTrace();
}
}
}
}
}
希望本文所述对大家的java程序设计有所帮助。