A class Palprime has been defined to display Palprime words from a sentence. Palprime is a…

import java.util.Scanner;
import java.util.StringTokenizer;

class Palprime
{
    String line;

    Palprime()
    {
        line = "";
    }

    void input()
    {
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter a sentence: ");
        line = sc.nextLine().toUpperCase();
    }

    boolean isPalin(String n)
    {
        int i = 0, j = n.length() - 1;
        while (i < j)
        {
            if (n.charAt(i) != n.charAt(j))
                return false;
            i++;
            j--;
        }
        return true;
    }

    boolean primelen(String n)
    {
        int len = n.length();
        if (len < 2)
            return false;
        for (int i = 2; i <= len / 2; i++)
        {
            if (len % i == 0)
                return false;
        }
        return true;
    }

    void display()
    {
        StringTokenizer st = new StringTokenizer(line, " ");
        String result = "";
        while (st.hasMoreTokens())
        {
            String word = st.nextToken();
            if (isPalin(word) && primelen(word))
            {
                if (result.length() > 0)
                    result += ", ";
                result += word;
            }
        }
        System.out.println("Palprime words: " + result);
    }

    public static void main(String args[])
    {
        Palprime ob = new Palprime();
        ob.input();
        ob.display();
    }
}