java file create directory code example

Example 1: java create directory

package com.mkyong.file;

import java.io.File;

public class CreateDirectoryExample {

    public static void main(String[] args) {

        File file = new File("C:\\Directory1");
        if (!file.exists()) {
            if (file.mkdir()) {
                System.out.println("Directory is created!");
            } else {
                System.out.println("Failed to create directory!");
            }
        }

        File files = new File("C:\\Directory2\\Sub2\\Sub-Sub2");
        if (!files.exists()) {
            if (files.mkdirs()) {
                System.out.println("Multiple directories are created!");
            } else {
                System.out.println("Failed to create multiple directories!");
            }
        }

    }

}

Example 2: java create file in folder

File file = new File("src/resources/run.txt");

file.getParentFile().mkdirs();

FileWriter writer = new FileWriter(file);
writer.append("this is a test");
writer.close();