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  1. public class Main {
  2.     public static void main(String[] args) {
  3.         int[] ar = {1,2,3,4,5,6,7,8,9};
  4.  
  5.         shiftRight(ar);
  6.         for (int i = 0; i < ar.length; i++) {
  7.             System.out.print(ar[i]);
  8.         }
  9.         // prints: 912345678 -- good
  10.         System.out.println();
  11.  
  12.         reverseArray(ar);
  13.         for (int i = 0; i < ar.length; i++) {
  14.             System.out.println(ar[i]);
  15.         }
  16.         // prints: 91234567 -- I don't understand       
  17.         System.out.println();       
  18.     }
  19.     public static void shiftRight(int[] ar) {
  20.         int temp = ar[ar.length - 1];
  21.         for (int i = ar.length - 1; i > 0; i--) {
  22.             ar[i] = ar[i - 1];
  23.         }
  24.         ar[0] = temp;
  25.     }
  26.     public static void reverseArray(int[] ar) {
  27.         int[] temp = new int[ar.length];
  28.         System.arraycopy( ar, 0, temp, 0, ar.length );
  29.         for (int i = 0, j = temp.length - 1; i < ar.length; i++, j--) {
  30.             ar[i] = temp[j];
  31.         }
  32.  
  33.         for (int i = 0; i < ar.length; i++) {
  34.             System.out.print(ar[i]);
  35.         }
  36.         // prints: 876543219
  37.         System.out.println();
  38.     }
  39. }
Success #stdin #stdout 0.07s 380160KB
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stdin
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Standard input is empty
stdout
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912345678
876543219
8
7
6
5
4
3
2
1
9
https://ideone.com/JpXW03
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
public

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