How to check if a folder exists?

To check if a folder exists in Java, you can use the java.nio.file.Files class and its exists method. This method returns true if the specified path exists and false otherwise.

Here is an example of how you can use the exists method to check if a folder exists:

import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;

public class Main {
  public static void main(String[] args) throws Exception {
    String dirName = "mydir";
    Path dirPath = Paths.get(dirName);
    if (Files.exists(dirPath)) {
      System.out.println("The directory exists.");
    } else {
      System.out.println("The directory does not exist.");
    }
  }
}

This code creates a Path object representing the directory and then checks if it exists using the exists method.

I hope this helps! Let me know if you have any other questions.