示例#1
0
 public int compare(byte[] a, byte[] b) {
   return Bytes.compare(a, b);
 }
示例#2
0
  // TESTING CODE HERE
  public static void main(String[] args) {
    byte[] a = new byte[] {(byte) 0134, (byte) 0345, (byte) 0456, (byte) 0753};
    byte[] b = new byte[] {(byte) 0134, (byte) 0345, (byte) 0546, (byte) 0753};
    byte[] c = new byte[] {(byte) 0134, (byte) 0345, (byte) 0546};

    Comparator<byte[]> comp = new ByteArrayComparator();

    System.out.printf(
        "a: %d.%d.%d.%d\n",
        Bytes.byteToInt(a[0]), Bytes.byteToInt(a[1]), Bytes.byteToInt(a[2]), Bytes.byteToInt(a[3]));
    System.out.printf(
        "b: %d.%d.%d.%d\n",
        Bytes.byteToInt(b[0]), Bytes.byteToInt(b[1]), Bytes.byteToInt(b[2]), Bytes.byteToInt(b[3]));
    System.out.printf(
        "c: %d.%d.%d \n", Bytes.byteToInt(c[0]), Bytes.byteToInt(c[1]), Bytes.byteToInt(c[2]));
    System.out.printf(
        "a?a : %d\na?b : %d\na?c : %d\nb?c : %d\n",
        comp.compare(a, a), comp.compare(a, b), comp.compare(a, c), comp.compare(b, c));
    System.out.printf(
        "b?b : %d\nb?a : %d\nc?a : %d\nc?b : %d\n",
        comp.compare(b, b), comp.compare(b, a), comp.compare(c, a), comp.compare(c, b));
    System.out.println(bytesToInt((byte) 0134, (byte) 0345, (byte) 0456, (byte) 0753));

    System.out.println("intToBytes:");
    int n = 0xa1b32ff3;
    b = intToBytes(n);
    System.out.printf(
        "dec: %d\nhex: %h\nbytes : %3d.%3d.%3d.%3d\nint: %d\n",
        n,
        n,
        Bytes.byteToInt(b[0]),
        Bytes.byteToInt(b[1]),
        Bytes.byteToInt(b[2]),
        Bytes.byteToInt(b[3]),
        Bytes.bytesToInt(b));

    /*
     * System.out.println("\n\nChecking intToBytes and bytesToInt");
     * System.out.println("checking from 0 to "+ Integer.MAX_VALUE); int
     * counter = 0; for(int n1=0;n1>=0;n1++){ byte[] bs =
     * Bytes.intToBytes(n1); int n2 = Bytes.bytesToInt(bs); if (n1!=n2)
     * System.out.println("\n"+n1+": "+n2); if (counter++ == 10000000)
     * {counter=1;System.out.println(n1);} } System.out.println(" OK");
     *
     * System.out.println(
     * "intToByte and byteToInt\ndec / hex -> to byte -> back"); for(int
     * i=0;i<256;i++){ byte bt =Bytes.intToByte(i);
     * System.out.printf("%d / %h -> %h -> %h\n", i, i, bt&0xff,
     * Bytes.byteToInt(bt)); }
     */
    System.out.println("Done");
  }