get files in a directory java code example

Example 1: how to get all the names of the files in a folder in java?

List<String> results = new ArrayList<String>();


File[] files = new File("/path/to/the/directory").listFiles();
//If this pathname does not denote a directory, then listFiles() returns null. 

for (File file : files) {
    if (file.isFile()) {
        results.add(file.getName());
    }
}

Example 2: java get files in directory

File folder = new File("/Users/you/folder/");
File[] listOfFiles = folder.listFiles();

for (File file : listOfFiles) {
    if (file.isFile()) {
        System.out.println(file.getName());
    }
}

Example 3: get file name from file path in java

package com.tutorialspoint;

import java.io.File;

public class FileDemo {
   public static void main(String[] args) {      
      File f = null;
      File f1 = null;
      String v, v1;
      boolean bool = false;
      
      try {
         // create new files
         f = new File("C:\\test.txt");
         f1 = new File("C:\\Program Files");
         
         // get file name or directory name
         v = f.getName();
         v1 = f1.getName();
         
         // true if the file path exists
         bool = f.exists();
         
         // if file exists
         if(bool) {
         
            // prints
            System.out.println("File name: "+v);
         }
         
         // true if the directory exists
         bool = f1.exists();
         
         // if the folder exists
         if(bool) {
         
            // prints
            System.out.print("Folder name: "+v1);
         }
         
      } catch(Exception e) {
         // if any error occurs
         e.printStackTrace();
      }
   }
}