In this example, we will see how to convert InputStream into ByteArrayInputStream in java.

Example of ByteArrayInputStream class in java.

In this example, you will see how to convert InputStream into ByteArrayInputStream 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 by using getBytes() methods. This array works as source for ByteArrayInputStream constructor.

package devmanuals.com;

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

public class ByteArrayInputStreamDemo {
	public static void main(String[] args) throws IOException {

	FileInputStream inputStream = new FileInputStream("TestFile.txt");
	byte[] byteArray = inputStream.toString().getBytes();
	ByteArrayInputStream byteArrayInStream = new ByteArrayInputStream(
			byteArray);
	while (byteArrayInStream.read() != -1) {
		System.out.print(byteArrayInStream.read());
	}
   }
}

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