Java file name interception method

1. Intercept file names without suffixes
String resourceName = resourceSearchBean. GetFileName ();
If (StringHelper. IsNotEmpty (resourceName) && resourceName. The length () > 0);
{
Int dot = resourceName. LastIndexOf (');
If ((dot > 1) && (dot < (resourceName. Length ()))) {
Return resourceName. Substring (0, dot);
}
}
2. Intercept the suffix name of the file

 
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; 
}