How to Async Get File Extension in Java - Code Snippet

// Task: Async Get File Extension
// Language: Java

public class Solution {
    public void asyncGetFileExtension() {
    // Implementation for Async Get File Extension
    var result = ...; // Initialize variable
    // TODO: Implement core logic here
    // Step 1: Prepare data
    // Step 2: Process Async Get File Extension
    System.out.println("Done");
    }
}