Syntax error How to perform sort using Java?

How to perform sort using Java?



You can sort an array using sort() method of the Arrays class.

Example

Live Demo

import java.util.Arrays;

public class MainClass {
   public static void main(String args[]) throws Exception {
      int array[] = { 2, 5, -2, 6, -3, 8, 0, -7, -9, 4 };
      Arrays.sort(array);
      printArray("Sorted array", array);
      int index = Arrays.binarySearch(array, 1);
      System.out.println("Didn't find 1 @ " + index);
      int newIndex = -index - 1;
      array = insertElement(array, 1, newIndex);
      printArray("With 1 added", array);
   }
   
   private static void printArray(String message, int array[]) {
      System.out.println(message + ": [length: " + array.length + "]");
      for (int i = 0; i < array.length; i++) {
         if (i != 0) {
            System.out.print(", ");
         }
         System.out.print(array[i]);
      }
      System.out.println();
   }

   private static int[] insertElement(int original[], int element, int index) {
      int length = original.length;
      int destination[] = new int[length + 1];
      System.arraycopy(original, 0, destination, 0, index);
      destination[index] = element;
      System.arraycopy(original, index, destination, index + 1, length - index);
      return destination;
   }
}

Output

Sorted array: [length: 10]
-9, -7, -3, -2, 0, 2, 4, 5, 6, 8
Didn't find 1 @ -6
With 1 added: [length: 11]
-9, -7, -3, -2, 0, 1, 2, 4, 5, 6, 8
Updated on: 2020-02-20T09:52:19+05:30

125 Views

Kickstart Your Career

Get certified by completing the course

Get Started
Advertisements