FileOutputStream write(byte[]) in Java

write(byte[]): This method is available in the java.io.FileOutputStream class of Java.

Syntax:

void java.io.FileOutputStream.write(byte[] b) throws IOException

This method takes one argument. This method writes b.length bytes from the specified byte array to this file output stream.

Parameters: One parameter is required for this method.

b: the data.

Returns: NA

Throws:

IOException - if an I/O error occurs.

Approach

Java

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

public class FileOutputStreamwrite {
    public static void main(String[] args) throws IOException {

        String pathname = "D:\\hello.txt";
        File file = new File(pathname);
        FileOutputStream fileOutputStream = 
                       new FileOutputStream(file);

        byte b[] = { 'a', 'b', 'c', 'd' };
        fileOutputStream.write(b);
        System.out.println("Successfully writes");

        fileOutputStream.close();
    }
}

Output:

Successfully writes