java观感示例分享

package com.hongyuan.gui;

import java.awt.eventqueue;
import java.awt.event.actionevent;
import java.awt.event.actionlistener;

import javax.swing.jbutton;
import javax.swing.jframe;
import javax.swing.jpanel;
import javax.swing.swingutilities;
import javax.swing.uimanager;
import javax.swing.unsupportedlookandfeelexception;

public class plaftest {

 public static void main(string[] args) {
  eventqueue.invokelater(new runnable() {

   @override
   public void run() {
    plafframe frame=new plafframe();
    frame.setdefaultcloseoperation(jframe.exit_on_close);
    frame.setvisible(true);
   }
  });
 }

}

class plafframe extends jframe
{
 private jpanel buttonpanel;
 public plafframe(){
  this.settitle("plaftest");
  this.setsize(400, 300);

  buttonpanel=new jpanel();
  //查询观感并生成按钮
  uimanager.lookandfeelinfo[] infos=uimanager.getinstalledlookandfeels();
  for(uimanager.lookandfeelinfo info:infos){
   makebutton(info.getname(),info.getclassname());
  }

  this.add(buttonpanel);
 }
 void makebutton(string name,final string plafname){

  jbutton button=new jbutton(name);
  buttonpanel.add(button);

  button.addactionlistener(new actionlistener() {

   @override
   public void actionperformed(actionevent e) {
    try {
     //设置观感并更新组件
     uimanager.setlookandfeel(plafname);
     swingutilities.updatecomponenttreeui(plafframe.this);
    } catch (classnotfoundexception | instantiationexception
      | illegalaccessexception
      | unsupportedlookandfeelexception e1) {
     e1.printstacktrace();
    }
   }
  });
 }
}