PROGRAM 16 : ENTER A STRING AND ARRANGE THE CHARACTERS IN ALPHABETICAL ORDER,REMOVING ALL SPACES OF THE STRING.

Example:

 

 

PROGRAM :

 

 

import java.util.Scanner;
public class alphabeticalorder
{
   public static void main(String args[])
   {
       Scanner sc = new Scanner(System.in);
       System.out.println("Enter a string:");
       String str = sc.nextLine();
       str = str.toUpperCase();
       int l = str.length();
       int i , j;
       char arr[] = new char[l]; // creating 'char' array to store the characters of string
       for(i = 0 ; i<l ; i++)
           arr[i] = str.charAt(i);// METHOD IS USED TO EXTRACT THE CHARACTERS OF STRING
       char t; // TEMPORARY VARIABLE CREATED
       for(i = 0 ; i<l ; i++) // SORTING OF CHARACTERS IN ASCENDING ORDER BY USING BUBBLE SORTING TECHNIQUE
       {
           for(j = 0 ; j<l-i-1 ; j++)
           {
               if(arr[j]>arr[j+1]) // COMPARING THE ELEMENTS OF ARRAY
               {
                   t = arr[j]; // SWAPPING MECHANISM
                   arr[j] = arr[j+1];
                   arr[j+1] = t;
                }
            }
        }
       String s = ""; //CREATE A NEW STRING TO REMOVE THE SPACES
       for(i = 0 ; i<l ; i++)
          s+=arr[i];
       s = s.trim(); // USING trim() method for eliminating the extra spaces
       System.out.println("OUTPUT:");
       System.out.println(s);
    }
}