Write code to get Http File Extension via regex
//package com.book2s; import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { public static void main(String[] argv) { String imgName = "book2s.com"; System.out.println(getHttpFileExt(imgName)); }//from w w w . j a v a2 s. c om public static String getHttpFileExt(String imgName) { String str = ""; String p = "(.jpg|.JPG|.gif|.GIF|.png|.PNG|.bmp|.BMP).*$"; Pattern pattern = Pattern.compile(p); Matcher matcher = pattern.matcher(imgName); if (matcher.find()) { str = matcher.group(); } return str; } }