package misc; import java.math.BigInteger; import java.util.Arrays; public class HelloWorld { public static void main(String[] args) { System.out.println("HelloWorld!"); byte[] tmp = new byte[3]; BigInteger bi = new BigInteger(1, tmp); System.out.println(bi.toByteArray().length); // System.out.println(tmp[3]); //System.out.println(Arrays.copyOfRange(tmp, 2, 1).length); byte[] a = new byte[]{0}; byte[] b = a.clone(); a[0] = 1; System.out.println(a[0] + " " + b[0]); // throw new ArrayIndexOutOfBoundsException("" + 11); } }