Question

in java

A NavigableSet is a set that stores it’s element in order. Say we have a bunch of items
and we want to store them in order but we don’t want any duplicates. Write a generic
class that implements a structure that does that.

Answer 1

Here is the java program to store elements in order and elements will be printed without duplicates.

import java.util.Scanner;
public class AOrder{
   public static void main(String args[])
   {
      
       int n,temp;
       Scanner s = new Scanner(System.in);
       System.out.print("Enter no.of elements you want in array:");
       n = s.nextInt();
       int a[] = new int[n];
       System.out.println("Enter all the elements:");
       for (int i=0; i<n; i++)//Loop to store bunch of elements
       {
           a[i] = s.nextInt();
       }
       for (int i=0; i<n; i++)
       {
           for (int j=i + 1; j<n; j++)
           {
                if (a[i] > a[j])//to store elements in ascending order
                {
               temp = a[i];
               a[i] = a[j];
               a[j] = temp;
                }
           }
       }
       for (int i=0; i<n; i++)
       {
           if(i==0)//to print first element
           System.out.print(a[i] + " ");
           if(i>0&&a[i]!=a[i-1])//to check duplicates
           System.out.print(a[i] + " ");
       }
   }
}