Java.util.Arrays.sort(Object[ ]) Method

Description

The java.util.Arrays.sort(Object[]) method sorts the specified array of Objects into ascending order according to the natural ordering of its elements.

Declaration

Following is the declaration for java.util.Arrays.sort() method

public static void sort(Object[] a)

Parameters

a − This is the array to be sorted.

Return Value

This method does not return any value.

Exception

ClassCastException − if the array contains elements that are not mutually comparable (for example, strings and integers).

Example

The following example shows the usage of java.util.Arrays.sort() method.

package com.tutorialspoint;

import java.util.Arrays;

public class ArrayDemo {
   public static void main(String[] args) {

      // initializing unsorted Object array
      Object ob[] = {27, 11, 44};

      // let us print all the elements available in list
      for (Object number : ob) {
         System.out.println("Number = " + number);
      }

      // sorting array
      Arrays.sort(ob);

      // let us print all the elements available in list
      System.out.println("The sorted Object array is:");
      for (Object number : ob) {
         System.out.println("Number = " + number);
      }
   }
}

Let us compile and run the above program, this will produce the following result −

Number = 27
Number = 11
Number = 44
The sorted Object array is:
Number = 11
Number = 27
Number = 44