A class SwapSort has been defined to perform string related operations on a word input.

Some of the members of the class are as follows:

Class name: SwapSort
Data members/instance variables:
wrd: to store the word
len: integer to store length of the word
swapwrd: to store the swapped word
sortwrd: to store the sorted word
Member functions/methods:
SwapSort(): default constructor to initialize data members with legal initial values
void readword(): to accept a word in uppercase
void swapchar(): to interchange/swap the first and last characters of the word in ‘wrd’ and stores the new word in ‘swapwrd’
void sortword(): sorts the characters of the original word in alphabetical order and stores it in ‘sortwrd’
void display(): displays the original word, swapped word and sorted word

Specify the class SwapSort, giving the details of the constructor(), void readword(), void swapchar(), void sortword() and void display(). Define the main() function to create an object and call the functions accordingly to enable the task.

import java.util.Scanner;
class SwapSort{
    String wrd;
    int len;
    String swapWrd;
    String sortWrd;
    public SwapSort(){
        wrd = new String();
        len = 0;
        swapWrd = new String();
        sortWrd = new String();
    }
    public void readWord(){
        Scanner in = new Scanner(System.in);
        System.out.print("Enter the word: ");
        wrd = in.next().toUpperCase();
        len = wrd.length();
    }
    public void swapChar(){
        char first = wrd.charAt(0);
        char last = wrd.charAt(len - 1);
        swapWrd = last + wrd.substring(1, len - 1) + first;
    }
    public void sortWord(){
        char a[] = new char[len];
        for(int i = 0; i < a.length; i++)
            a[i] = wrd.charAt(i);
        for(int i = 0; i < a.length; i++){
            for(int j = 0; j < a.length - 1 - i; j++){
                if(a[j] > a[j + 1]){
                    char temp = a[j];
                    a[j] = a[j + 1];
                    a[j + 1] = temp;
                }
            }
        }
        for(int i = 0; i < a.length; i++)
            sortWrd += a[i];
    }
    public void display(){
        System.out.println("Original word: " + wrd);
        System.out.println("Swapped word: " + swapWrd);
        System.out.println("Sorted word: " + sortWrd);
    }
    public static void main(String[] args){
        SwapSort obj = new SwapSort();
        obj.readWord();
        obj.swapChar();
        obj.sortWord();
        obj.display();
    }
}