How can I create File and write data in it using Java

Question

What will be the easiest way to create a file and to write it in using Java?

Answer 1

As we are handling input and output of data, the programs written for I/O may throw IOException.

We can create Text File as well as Binary File using Java.

To create and write data in Text File, following program will be the solution:

public static void main(String[] args) {

File file=new File("Student.txt");

try {

    PrintWriter out=new PrintWriter(file);
    out.println("Henry Lee");
    out.println(55);
    out.close();

}catch(IOException e) {

  System.out.println("Exception is: "+e);

}

We can create Binary File by using FileOutputStream Class:

public static void main(String[] args) {

try{    

     FileOutputStream fo=new FileOutputStream("Employee.txt");    
     fo.write(97);
     fo.close();    
     System.out.println("Information is written into the file");    

     }catch(Exception e){

       System.out.println(e);

     } 

Answer 2

import java.io.BufferedWriter;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;

public class WriteFiles{
    public static void main(String[] args) throws IOException {
        String files = "text.txt";
        System.out.println("Writing to file: " + file);
        // Files.newBufferedWriter() uses UTF-8 encoding by default
        try (BufferedWriter writer = Files.newBufferedWriter(Paths.get(file))) {
            writer.write("Java\n");
            writer.write("Python\n");
            writer.write("Clojure\n");
            writer.write("Scala\n");
            writer.write("JavaScript\n");
        }
    }
}