I am trying to parse multiple file names(doc file)in java. How should I go about doing this?
I asked a previous post and got a answer on how to parse a file name in java. Thanks for that.
So in a directory, I have multiple files(with different names). For instance, there are files
AA_2322_1
AA_2342_1
BB_2324_1
CC_2342_1
I want to parse the middle 4 digit-5digit numbers only.
Suppose you have a directory C:\XYZ with the files you listed above, with .doc extensions on them. Taking advantage of a FileFilter, you can get a list of the numbers you are looking for with the following code:
File directory = new File("C:/XYZ");
final ArrayList<String> innerDigits = new ArrayList<String>();
FileFilter filter = new FileFilter() {
@Override
public boolean accept(File pathname) {
if (!pathname.isFile() || !pathname.getName().endsWith("doc"))
return false;
// Extract whatever you need from the file object
String[] parts = pathname.getName().split("_");
innerDigits.add(parts[1]);
return true;
}
};
// No need to store the results, we extracted the info in the filter method
directory.listFiles(filter);
for (String data : innerDigits)
System.out.println(data);
Getting the filenames of all files in a folder - Use this question to get the name of all the files in the directory. Then use the String.split() function to parse the file names.
You can use split method
String[] parts = filename.split("_");
Now you need parts[1]
