获取文件

import java.io.File;


import javax.swing.JFileChooser;/*来 自 时代Java*/


public class Main {

  public static void main(String[] argv) {

    JFileChooser chooser = new JFileChooser();


    // Create a File instance of the file

    File file = new File("filename.txt");


    // Get the file type name

    String fileTypeName = chooser.getTypeDescription(file);

    System.out.println(fileTypeName);/** from nowjava.com - 时代Java**/

    // Text Document

  }

}