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Java Sort long Array Example

  1. /*
  2.    Java Sort long Array Example
  3.    This example shows how to sort a long array using sort method of Arrays class of
  4.    java.util package.
  5. */
  6.  
  7. import java.util.Arrays;
  8.  
  9. public class SortLongArrayExample {
  10.  
  11.   public static void main(String[] args) {
  12.    
  13.     //create long array
  14.     long[] l1 = new long[]{3,2,5,4,1};
  15.    
  16.     //print original long array
  17.     System.out.print("Original Array :\t ");
  18.     for(int index=0; index < l1.length ; index++)
  19.       System.out.print("  "  + l1[index]);
  20.    
  21.     /*
  22.      To sort java long array use Arrays.sort() method of java.util package.
  23.      Sort method sorts long array in ascending order and based on quicksort
  24.      algorithm.
  25.      There are two static sort methods available in java.util.Arrays class
  26.      to sort a long array.
  27.     */
  28.    
  29.     //To sort full array use sort(long[] l) method.
  30.     Arrays.sort(l1);
  31.    
  32.     //print sorted long array
  33.     System.out.print("\nSorted long array :\t ");
  34.     for(int index=0; index < l1.length ; index++)
  35.       System.out.print("  "  + l1[index]);
  36.      
  37.     /*
  38.       To sort partial long array use
  39.       sort(long[] l, int startIndex, int endIndex) method where startIndex is
  40.       inclusive and endIndex is exclusive
  41.     */
  42.    
  43.     long[] l2 = new long[]{5,2,3,1,4};
  44.     Arrays.sort(l2,1,4);
  45.    
  46.     //print sorted long array
  47.     System.out.print("\nPartially Sorted long array :\t ");
  48.     for(int index=0; index < l2.length ; index++)
  49.       System.out.print("  "  + l2[index]);
  50.  
  51.   }
  52. }
  53.  
  54. /*
  55. Output Would be
  56.  
  57. Original Array :     3  2  5  4  1
  58. Sorted long array :     1  2  3  4  5
  59. Partially Sorted long array :     5  1  2  3  4
  60. */