Java.io.ByteArrayInputStream.read() Method

Description

The java.io.ByteArrayInputStream.read() method reads the next byte from this input stream. The read() method doesn't block

Declaration

Following is the declaration for java.io.ByteArrayInputStream.read() method:

public int read()

Parameters

• NA

Return Value

Returns value byte as int in the range 0-255. Returns -1 if the stream has reached it's end.

Exception

• NA

Example

The following example shows the usage of java.io.ByteArrayInputStream.read() method.

package com.tutorialspoint;

import java.io.ByteArrayInputStream;
import java.io.IOException;

public class ByteArrayInputStreamDemo {
   public static void main(String[] args) throws IOException {
      
      byte[] buf = {65, 66, 67, 68, 69};
      ByteArrayInputStream bais = null;
      
      try{
         
         // create new byte array input stream
         bais = new ByteArrayInputStream(buf);
         
         int b =0;
         
         // read till the end of the stream
         while((b = bais.read())!=-1)
         {
            
            // convert byte to character
            char c = (char)b;
            
            // print
            System.out.println("byte :"+b+"; char : "+ c);
            
         }
         System.out.print(bais.read()+" Reached the end");
         
      }catch(Exception e){

         // if I/O error occurs
         e.printStackTrace();
      }finally{

         if(bais!=null)
            bais.close();
      }   
   }
}

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

byte :65; char : A
byte :66; char : B
byte :67; char : C
byte :68; char : D
byte :69; char : E
-1 Reached the end