Java

nt_virus wrote:

why is it so

public class Main{
    public static void main(String[] args) {
 int[] value = {2,1,3,6,5};
        System.out.println("Unsorted value");       // Print unsorted array.
        for (int s : value)
            System.out.print(s + " ");
        System.out.println("\n");
        Arrays.sort(value); // Sort array

        System.out.println("sorted value ascending");       // Print unsorted array.
        for (int s : value)
            System.out.print(s + " ");
        System.out.println("\n");      
    }}

nt_virus wrote:

please tell how to do descending...

nt_virus wrote:

There is a way by Comparator .. but its lengthy .. Any other way .. please tell.

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package SortListOfNumbers;
import java.util.Arrays;
import java.util.Collections;

public class Main{
    public static void main(String[] args)
    {
Sorting srt = new Sorting();
srt.ascending();
srt.descending();
    }
}
 class Sorting{
     public void ascending(){

            int[] value = {2,1,3,6,5};
            System.out.println("Sorting in ascending order");
            System.out.println("Unsorted value");       // Print unsorted array.
             for (int s : value)
               System.out.print(s + " ");
             System.out.println("\n");
             Arrays.sort(value); // Sort in ascending
             System.out.println("sorted value ascending");       // Print unsorted array.
             for (int s : value)
                    System.out.print(s + " ");
             System.out.println("\n");
     }
     public void descending(){

            Integer[] value = {2,1,3,6,5};
            System.out.println("Sorting in descending order");
            System.out.println("Unsorted value");       // Print unsorted array.
             for (int s : value)
               System.out.print(s + " ");
             System.out.println("\n");
             Arrays.sort(value, Collections.reverseOrder());
             System.out.println("Sorted Descending");       // Print unsorted array.
             for (int s : value)
               System.out.print(s + " ");
             System.out.println("\n");
     }}

nt_virus wrote:

Please explain why is it happen so.. it bit strange for me.

List<Integer> list = Arrays.asList(1,2,3,4,5);
		System.out.println("List :"+list);
		List<Integer> sublist = Arrays.asList(4,5);
		System.out.println("SubList :"+sublist);
		System.out.println("indexOfSubList: "+ Collections.indexOfSubList(list, sublist));
		System.out.println("lastIndexOfSubList: " + Collections.lastIndexOfSubList(list, sublist));
		
		if (Collections.indexOfSubList(list, sublist) != -1)
			System.out.println(true);
		else
			System.out.println(false);  

static boolean hasSubsequence(int[] arr, int[] sub)
{
   // no match for the outer loop
   // this will exit when a match is found
   boolean matched = false;
   for (int i=0;
        i < arr.length-sub.length && !matched;
        i++)
   {
      // start off matched for the inner loop
      // this will exit when a mismatch is found
      matched = true;
      for (int j=0;
           j <= sub.length && matched;
           j++)
      {
         matched = (arr[i] == sub[j])
      }
   }
   // at this point mayched is true if sub is inside arr
   return matched;
}