Here, we will convert input stream into byte array in java.

How to convert input stream into byte array in java.

In this example, we will see how to convert input stream to bye array in java. First of all read the file as input stream using FileInputStream. Then convert this input stream into string by using the toString() and string into byte array by using getBytes() methods.

package devmanuals.com;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class InputStreamToByteArray {
	public static void main(String[] args) throws IOException {
		String str = "TestFile.txt";
		FileInputStream inputStream = new FileInputStream(new File(str));

		String stringData = inputStream.toString();
		byte[] byteArray = stringData.getBytes();
		System.out.println("After conversion a input stream "
				+ "into byte array data in byte array.. ");
		for (int i = 0; i < byteArray.length; i++) {
			System.out.print(byteArray[i] + " ");
		}
	}
}

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