Java ByteArrayOutputStream write() method

The write() method of Java ByteArrayOutputStream class is used to write len bytes from the specified byte array standing at offset off to this byte array output stream.

Syntax:

Overrides

write() method in class OutputStream.

Parameters:

b- the data.

off- the start offset in the data.

len- the number of byte to write.

Returns

Example 1

import java.io.*;
public class JavaByteArrayOutputStreamWriteExample1 {
    public static void main(String[] args) {
        byte[] b = { 'j', 'a', 'v', 'a' };
        try {
            OutputStream os = new FileOutputStream("test.txt");
            InputStream is = new FileInputStream("test.txt");
            os.write(b, 0, 4);
            for (int i = 0; i < 4; i++) {
                System.out.print((char) is.read());
            }
            os.close();
            is.close();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}

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Output:

Java

Example 2

import java.io.*;
public class JavaByteArrayOutputStreamWriteExample2 {
    public static void main(String[] args) {
        byte[] b = { 'j', 'a', 'v', 'a' };
        try {
            OutputStream os = new FileOutputStream("test.txt");
            InputStream is = new FileInputStream("test.txt");
            os.write(b, 0, 3);
            for (int i = 0; i < 4; i++) {
                System.out.print((char) is.read());
            }
            os.close();
            is.close();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}

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Output:

Java ByteArrayOutputStream write() method

The write() method is used to write the specified bytes to this output stream.

Syntax:

Parameters:

b-the byte to be written

Specified By:

write() in class OutputStream.

Example 1

import java.io.*;
public class JavaByteArrayOutputStreamWriteExample3 {
    public static void main(String[] args) {
        try {
            OutputStream os = new FileOutputStream("test.txt");
            InputStream is = new FileInputStream("test.txt");
            os.write(65);
            os.write(66);
            os.write(67);
            for (int i = 0; i <= 2; i++) {
                System.out.print("" + (char) is.read());
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}

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Output:

ABC

Example 2

import java.io.*;
public class JavaByteArrayOutputStreamWriteExample4 {
public static void main(String[] args) {
try {	
OutputStream os = new FileOutputStream("test.txt");
InputStream is = new FileInputStream("test.txt");
os.write(87);
os.write(88);
os.write(89);
os.write(90);
for (int i = 0; i <= 3; i++) {
System.out.print("" + (char) is.read());
         }
      } catch (Exception ex) {
ex.printStackTrace();
      }
   }
}

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Output: