Implement file filtering in Java

For example, I only want to obtain the. Java file under a certain path.

You only need to implement the filenamefilter interface.

For example:

Private class filefilter implements filenamefilter {
Public Boolean accept (File Dir, string name ){
Return name. endswith (". Java ");
}
}

Then, call the list method and use the file filter as the parameter.

String [] allnames = new file (PATH). List (New filefilter ());

The obtained allnames array is all. java files under the Path.

For the file selection box in swing, call the setfilenamefilter method.

Filedialog. setfilenamefilter (Java. Io. filenamefilter)