JAVA实现文件选择器中运行.exe文件

import java.awt.*;import java.awt.event.*;import javax.swing.*;import java.io.*;class Chooserrun extends JFrame implements ActionListener{JButton button;JTextArea text;JTextPane textpane;FileInputStream readfile;JScrollPane scroll;// Container con;Jpanel con;JFileChooser chooser=new JFileChooser();//==========================================public Chooserrun(){super("有文件选择器的窗口");button=new JButton("打开文件选择器");button.addActionListener(this);textpane=new JTextPane();JFileChooser chooser=new JFileChooser();scroll=new JScrollPane(textpane);// JFileChooser chooser=new JFileChooser();//不能在此处初始化！this.setSize( new Dimension(200,200));setVisible(true);con=(Jpanel)this.getContentPane();con.add(button,BorderLayout.NORTH);con.add(scroll,BorderLayout.CENTER);addWindowListener(new WindowAdapter() {public void windowClosing(WindowEvent e) {dispose();System.exit(0);}});}//====================================================public void actionPerformed(ActionEvent e){if(e.getSource()==button){String s;int state =chooser.showOpenDialog(null);File file=chooser.getSelectedFile();{try{ Runtime ce=Runtime.getRuntime();ce.exec(file.toString());}catch(IOException e1){e1.printStackTrace();}}}}//--------------------------------------}import javax.swing.UIManager;import java.awt.*;public class mytest{public static void main(String args[]){Chooserrun run=new Chooserrun();run.pack();Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();Dimension frameSize = run.getSize();if (frameSize.height > screenSize.height) {frameSize.height = screenSize.height;}if (frameSize.width > screenSize.width) {frameSize.width = screenSize.width;}run.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2);}}