JFileChooser文件过滤

来源：互联网发布：里海大学知乎编辑：程序博客网时间：2024/05/16 03:43

package main;
import java.io.File;
import javax.swing.*;
import javax.swing.filechooser.*;
/**
* Title: 
* Description: 
* Copyright: Copyright (c) 2007-12
* Company: 
* @author samZheng
* @version 1.0
*/

public class PicFileFilter extends FileFilter {
public boolean accept(File f) {
    if (f.isDirectory()) {
      return true;
    }

    String jpgName = "jpg";
    String bmpName = "bmp";
    String gifName = "gif";
    String pngName = "png";
    if (getExtension(f).equals(jpgName)||
        getExtension(f).equals(bmpName)||
        getExtension(f).equals(gifName)||
        getExtension(f).equals(pngName))
      return true;
    return false;
}

public String getDescription() {
return "Picture Files";
}

public static String getExtension(File f) {
    String ext = "";
    String s = f.getName();
    int i = s.lastIndexOf('.');

if (i > 0 && i < s.length() - 1) {
 ext = s.substring(i+1).toLowerCase();
 }
 return ext;
}
}