create 0x00 - 0xFF 256 bytes binary data to stdout.

get256bytes.groovy

for (int i in 0..0xFF) {
    System.out.write(i);
    System.out.flush();
}

get256bytes.java

public class get256bytes {
    public static void main(String[] args) {
        for (int i = 0; i <= 0xFF; i++) {
            System.out.write(i);
            System.out.flush();
        }
    }
}