Java.io.OutputStream.write() Method

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Description

The java.io.OutputStream.write(int b) method writes the specified byte to this output stream. The general contract for write is that one byte is written to the output stream. The byte to be written is the eight low-order bits of the argument b. The 24 high-order bits of b are ignored.

Subclasses of OutputStream must provide an implementation for this method.

Declaration

Following is the declaration for java.io.OutputStream.write() method.

public abstract void write(int b)

Parameters

b − The byte.

Return Value

This method does not return a value.

Exception

IOException − If an I/O error occurs. In particular, an IOException is thrown if the output stream is closed.

Example

The following example shows the usage of java.io.OutputStream.write() method.

package com.tutorialspoint;

import java.io.*;

public class OutputStreamDemo {
   public static void main(String[] args) {
      try {
         // create a new output stream
         OutputStream os = new FileOutputStream("test.txt");

         // craete a new input stream
         InputStream is = new FileInputStream("test.txt");

         // write something
         os.write(70);
         os.write(71);

         // read what we wrote
         for (int i = 0; i < 2; i++) {
            System.out.print("" + (char) is.read());
         }
      } catch (Exception ex) {
         ex.printStackTrace();
      }
   }
}

Let us compile and run the above program, this will produce the following result −

FG