StreamCopier class in Java

StreamCopier class in Java

package com.elharo.io;

import java.io.*;

public class StreamCopier {

public static void main(String[] args) {

try {
copy(System.in, System.out);
}
catch (IOException ex) {
System.err.println(ex);
}

}

public static void copy(InputStream in, OutputStream out)
throws IOException {

byte[] buffer = new byte[1024];
while (true) {
int bytesRead = in.read(buffer);
if (bytesRead == -1) break;
out.write(buffer, 0, bytesRead);
}

}

}