我需要帮助,,,我为构建搜索引擎工作 [英] i need help ,,,i work for build search engine

问题描述

  import  javax.swing.ButtonGroup; 
  import  javax.swing.JButton; 
  import  javax.swing.JFrame; 
  import  javax.swing.JLabel; 
  import  javax.swing.JTextField; 
  import  java.awt。*; 
  import  java.awt .event.ActionListener; 
  import  java.awt .event.ActionEvent; 
 
 
  public   class  interfac  extends  JFrame {
 
 
  private  JLabel myLabel;  private  JTextField t;  private  JButton r1;  private  JButton r2;  private  JButton r3; 
  private  ButtonGroup radioGroup; 
 
  public  interfac（）
 {
 setTitle（  Frame Demo）; 
 setLocation（ 100 ， 105 ）; setSize（ 1000 ， 1000 ）; 
 myLabel =  new  JLabel（ 输入你的SEARCH）; 
 t =  new  JTextField（ 50 ）; 
 t.setText（ ）; 
 
 
 setLayout（null）; 
 myLabel.setLocation（ 0 ， 0 ）; 
 myLabel.setSize（ 500 ， 300 ）; 
 t.setLocation（ 200 ， 150 ）; 
 t.setSize（ 550 ， 30 ）; 
 r1 =新JButton（ 政治新闻）; r1.setLocation（ 200 ， 200 ）; r1.setSize（ 150 ，  50 ）; 
 r2 =新JButton（ 医学新闻）; r2.setLocation（ 400 ， 200 ）; r2.setSize（ 150 ，  50 ）; 
 r3 =新JButton（ 社交新闻）; r3.setLocation（ 600 ， 200 ）; r3.setSize（ 150 ，  50 ）; 
 add（myLabel）; 
 add（t）; 
 
 add（r1）; 
 add（r2）; 
 add（r3）; 
 
处理程序处理程序= new Handler（）; 
 r1.addActionListener（handler）; 
 r2.addActionListener（handler）; 
 r3.addActionListener（handler）; 
 t.addActionListener（handler）; 
 
 
} 
  private   class 处理程序 implements  ActionListener 
 {
  public   void  actionperformed（ActionEvent事件）
 {
 
 
 
  if （event.getSource（） == t）{
} 
  if （event.getSource（）== r1）{
} 
 < span class =code-keyword> if （event.getSource（）== r2）{
} 
  if （ event.getSource（）== r3）{
} 
 
 
 
} 
} 
 
 
} 

此搜索引擎代码我在src中有包含另外3个文件夹的文件夹

我想构建包含textfield和3按钮的界面，当用户在textfield中文本并点击其中一个按钮时它会打开包含文件的文件夹,,,,我需要3按钮的操作来更改特定文件夹的路径





代码块添加 - OriginalGriff [/ edit]

解决方案

跟进评论：



和我有错误（处理程序）

私有类Handler实现ActionListener

如何解决它？



可能是因为继承的方法被称为action P erformed。



请在此处阅读： ActionListener [ ^ ] @ Java教程



你可以开始通过告诉系统执行Windows文件资源管理器：

 尝试 {
 Process oProcess =  new  ProcessBuilder（  explorer.exe ，  / select，C：\\directory \\political）开始（）;  //  查看\\，反斜杠是一个屏蔽标记，需要屏蔽才能使用normal 
  //   oProcess.waitFor（）; //仅当您希望应用程序等待filexplorer完成时 
} 
  catch （异常oException）{
 oException.printStackTrace（）;  //  获取完整的异常文字 
} 

 r1.addActionListener（ new  ActionListener（）{
 
  public   void  actionPerformed（ActionEvent e）{
 reading.read（ 政治新闻）; 
}}）; 
 r2.addActionListener（ new  ActionListener（）{
 
  public   void  actionPerformed（ActionEvent e）{
 reading.read（ 经济新闻）; 
}}）; 
 r3.addActionListener（ new  ActionListener（）{
 
  public   void  actionPerformed（ActionEvent e）{
 reading.read（ 社交新闻）; 
}}）; 

但我无法找到在框架中打印结果

import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextField;
import java.awt.*;
import java.awt .event.ActionListener;
import java.awt .event.ActionEvent;


public class interfac extends JFrame {
	
	
		private JLabel myLabel;private JTextField t;private JButton r1;private JButton r2; private JButton r3;
		private ButtonGroup radioGroup;

	public interfac()
	{
		setTitle("Frame Demo");
		setLocation(100,105); setSize(1000,1000);
		myLabel = new JLabel("ENTER YOUR SEARCH");
		t= new JTextField(50);
		t.setText(" ");
		
		
		setLayout(null);
		myLabel.setLocation(0,0);
		myLabel.setSize(500,300);
		t.setLocation(200,150);
		t.setSize(550,30);
		r1=new JButton("political news");r1.setLocation(200,200);r1.setSize(150,50);
		r2=new JButton("medical news");r2.setLocation(400,200);r2.setSize(150,50);
		r3=new JButton("social news");r3.setLocation(600,200);r3.setSize(150,50);
		add(myLabel);
		add(t);
		
		add(r1);
		add(r2);
		add(r3);
		
		Handler handler=new Handler();
		r1.addActionListener(handler);
		r2.addActionListener(handler);
		r3.addActionListener(handler);
		t.addActionListener(handler);
		

	}
	private class Handler implements ActionListener
	{
		public void actionperformed(ActionEvent event )
		{
			
			
			
		if (event.getSource()==t ){
		}
		if(event.getSource()==r1){
		}
		if(event.getSource()==r2){
		}
		if(event.getSource()==r3){
		}

	
		
		}
	}
	

}

this code for search engine that i have folder in src that contain another 3 folder
and i want to build interface that contain textfield and 3 button , and when the user inter text in textfield and click on one of button it will open the folder that contain documents ,,,, i need the action for the 3 button to change path for the specific folder


[edit]Code block added - OriginalGriff[/edit]

解决方案

Follow up to comments:

and i have error in (Handler)
private class Handler implements ActionListener
how can solve it?

probably because the inherited method is called "actionPerformed".

please also read about it here: ActionListener[^] @ the Java Tutorials

You can start the Windows File Explorer by telling the system to do so:

try { 
  Process oProcess = new ProcessBuilder("explorer.exe", "/select,C:\\directory\\political").start();  // check out the "\\", the backslash is a masking tag and needs to be masked to be used "normal"
  // oProcess.waitFor(); // only if you want your app to wait for the filexplorer to finish
}
catch(Exception oException){
  oException.printStackTrace(); // to get full exception text
}

r1.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                reading.read("political news");
            }});
        r2.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                reading.read("economic news");
            }});
        r3.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                reading.read("social news");
            }});

but i cant find away to print result in the frame

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