JAVA操作——获取文件扩展名，去掉文件扩展名
http://blog.csdn.net/redoffice/article/details/6652731
/*
* Java文件操作 获取文件扩展名
*
* Created on: 2011-8-2
* Author: blueeagle
*/
public static String getExtensionName(String filename) {
if ((filename != null) && (filename.length() > 0)) {
int dot = filename.lastIndexOf('.');
if ((dot >-1) && (dot < (filename.length() - 1))) {
return filename.substring(dot + 1);
}
}
return filename;
}
/*
* Java文件操作 获取不带扩展名的文件名
*
* Created on: 2011-8-2
* Author: blueeagle
*/
public static String getFileNameNoEx(String filename) {
if ((filename != null) && (filename.length() > 0)) {
int dot = filename.lastIndexOf('.');
if ((dot >-1) && (dot < (filename.length()))) {
return filename.substring(0, dot);
}
}
return filename;
}