ByteStream :

Byte Streams allows a programmer to work with the binary data in a file.In this streams data are accessed as a sequence of bytes all types other than the text or character that are deal in this stream.Byte Streams contains a different types of byte stream classes.

There are mainly two parts :

1. Input Stream
2. Output Stream

InputStream

• The Input stream class defines the functionality that is available for all byte input streams
• The method provide by the InputStream class are :

int read()
int readbyte(byte[] buffer)
int read(byte[] buffer,int offset, int length)

OutputStream

• The Ouput Stream class defines the functionality that is available for all byte output streams
• The method provided by OutputStream class are

int write()
int writebyte(byte[] buffer)
int write(byte[] buffer,int offset, int length)

Other method includes :

void close()
void flush()

Example :

package com.tech;

import java.io.*;

public class writeData {

	public writeData() throws InterruptedException {
		FileOutputStream fos = null;
		try {
			fos = new FileOutputStream("D:\\WriteData1.txt");
		} catch (FileNotFoundException e1) {
			e1.printStackTrace();
		}
		try
		{
		for(int i=1;i<=10;i++)
			{
			fos.write(i);
			}
		fos.flush();
		fos.close();
		System.out.println("successfully write");
		}
		catch (Exception e) {
			e.printStackTrace();
			}

}
}

package com.tech;

import java.io.FileInputStream;

public class readData {

	public readData() {
		try{
		FileInputStream fis =new FileInputStream("D:\\WriteData1.txt"); 
	int i=0;
	while((i=fis.read())!=-1)
				{
			System.out.println(i);
				}
		fis.close();
		System.out.println("successfully read");
		}
		catch (Exception e) {
			e.printStackTrace();
			}
	}

}

package com.tech;

public class Demo {

	public static void main(String args[]) throws Exception
	{
		
		writeData wd=new writeData();
		readData rd=new readData();
	}

}

Output :

successfully write
1
2
3
4
5
6
7
8
9
10
successfully read