34     public static void init(int src[]) {
  35         // Initialize the array
  36         for (int i = 0; i < src.length; i++)
  37             src[i] = i;
  38     }
  39 
  40    public static void shift(int src[]) {
  41        //left-shift the array
  42        for (int i = src.length-1; i > 0; i--){
  43            int tmp  = src[i];
  44            src[i]   = src[i-1];
  45            src[i-1] = tmp;
  46        }
  47     }
  48 
  49     public static void verify(int src[]) {
  50         for (int i = 0; i < src.length; i++){
  51             int value = (i-1 + src.length)%src.length; // correct value after shifting
  52                 if (src[i] != value) {
  53                     System.out.println("Error: src["+i+"] should be "+ value + " instead of " + src[i]);
  54                     System.exit(-1);
  55                 }
  56         }
  57     }
  58 
  59     public static void test() {
  60         int[] src = new int[10];
  61         init(src);
  62         shift(src);
  63         verify(src);
  64     }
  65 
  66     public static void main(String[] args) {
  67         for (int i=0; i< 2000; i++)
  68             test();
  69     }
  70 }

  34     public static void init(int src[]) {
  35         // Initialize the array
  36         for (int i = 0; i < src.length; i++)
  37             src[i] = i;
  38     }
  39 
  40    public static void shift(int src[]) {
  41        //left-shift the array
  42        for (int i = src.length-1; i > 0; i--){
  43            int tmp  = src[i];
  44            src[i]   = src[i-1];
  45            src[i-1] = tmp;
  46        }
  47     }
  48 
  49     public static void verify(int src[]) {
  50         for (int i = 0; i < src.length; i++){
  51             int value = (i-1 + src.length)%src.length; // correct value after shifting
  52                 if (src[i] != value) {
  53                     System.out.println("Error: src["+i+"] should be "+ value + " instead of " + src[i]);
  54                     System.exit(97);
  55                 }
  56         }
  57     }
  58 
  59     public static void test() {
  60         int[] src = new int[10];
  61         init(src);
  62         shift(src);
  63         verify(src);
  64     }
  65 
  66     public static void main(String[] args) {
  67         for (int i=0; i< 2000; i++)
  68             test();
  69     }
  70 }