Create New file

File file = new File("C:\\newfile1.txt");

//Creates new file and return true if file not exists and return false if file already exists
boolean fvar = file.createNewFile(); 
if (fvar){
	          System.out.println("File has been created successfully");
	     }
	     else{
	          System.out.println("File already present at the specified location");
	     }
        }

String data = "Welcome to File creation";
FileOutputStream out = new FileOutputStream("c:// newfile2.txt");
out.write(data.getBytes());
out.close();

String data = " Welcome to File creation ";
Files.write(Paths.get("c: //newfile3.txt"), data.getBytes());
 
//or
 
List<String> lines = Arrays.asList("line 1", "line 2");
Files.write(Paths.get("newfile4.txt"), lines, StandardCharsets.UTF_8,
        StandardOpenOption.CREATE, StandardOpenOption.APPEND);

package com.kb.io;
 
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
import java.util.Arrays;
import java.util.List;
 
public class CreateNewFile
{
    public static void main(String[] args) throws IOException
    {
        createFileUsingFileClass();
        createFileUsingFileOutputStreamClass();
        createFileUsingNIO();
    }
 
    private static void createFileUsingFileClass() throws IOException
    {
	File file = new File("C://newfile1.txt");

//Creates new file and return true if file not exists and return false if file already exists
boolean isFileCreated = file.createNewFile(); 
if (isFileCreated){
	          System.out.println("File has been created successfully");
	     }
	     else{
	          System.out.println("File already present at the specified location");
	     }

           
          //Write Content
          FileWriter writer = new FileWriter(file);
          writer.write("File Creation using File class");
          writer.close();
    }
 
    private static void createFileUsingFileOutputStreamClass() throws IOException
    {
        String data = "File Creation using FileOutputStream class";
        FileOutputStream out = new FileOutputStream("c://newfile2.txt");
        out.write(data.getBytes());
        out.close();
    }
 
    private static void createFileUsingNIO()  throws IOException
    {
        String data = "File Creation using NIO API";
        Files.write(Paths.get("c://newfile3.txt"), data.getBytes());
         
        //This way it creates new file if no file exist with the given name or appends if already exists
         
        List<String> lines = Arrays.asList("line1", "line2",”line3”);
        Files.write(Paths.get("c://newfile4.txt"), lines, StandardCharsets.UTF_8,
                StandardOpenOption.CREATE, StandardOpenOption.APPEND);
    }
}