Java ByteArrayOutputStream writeTo() method

The writeTo() method of Java ByteArrayOutputStream class is used to write the complete contents of this byte array output to the specified output stream argument.

Syntax:

Parameters:

out - The specified output stream to be written to.

Throws

IOException - if an I/O error occurs.

Return

Example 1

import java.io.*;
public class JavaByteArrayOutputStreamWriteToExample1 {
    public static void main(String[] args) throws IOException {
        byte[] bs = {69, 70, 71, 72};
        OutputStream os = new ByteArrayOutputStream();
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        baos.write(bs);
        baos.writeTo(os);
        System.out.println(os.toString());
    }
}

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Output:

EFGH

Example 2

import java.io.*;
public class JavaByteArrayOutputStreamWriteToExample2 {
    public static void main(String[] args) throws IOException {
        byte[] bs = {65,66,67,68};
        OutputStream os = new ByteArrayOutputStream();
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        baos.write(bs);
        baos.writeTo(os);
        System.out.println(os.toString());
    }
}

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Output: