Java program to print and count all the palindrome words in input sentence

A Palindrome is a word that may be read the same way in either direction.

Accept a sentence in UPPER CASE which is terminated by either ” . “, ” ? ” or ” ! “. Each word of the sentence is separated by a single blank space.

Perform the following tasks:

(a) Display the count of palindromic words in the sentence.

(b) Display the palindromic words in the sentence. Example of palindromic words:

MADAM, ARORA, NOON

Solution:

import java.util.*;
class PalindromeWords
{    
    public static void main(String arr[])
    {
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter Any String ");
        String str1=sc.nextLine();
        String rev="",word="";
        int count=0;
        str1=str1+" ";
        System.out.println("Palindrome Words in Strings are : \n");
        for(int a=0;a<
str1.length();a++)
        {
            if(str1.charAt(a)==' ')
            {
                if(word.equals(rev))
                {
                    System.out.print(rev+" ");
                    count++;
                }    
                rev="";
                word="";
            }
            else
            {
                rev=str1.charAt(a)+rev;
                word=word+str1.charAt(a);
            }
            
        }
        System.out.println("\nNumber of Palindrome Words : "+count);
    }
}

Output

nitin is a very good pop singer

Palindrome Words in Strings are :

nitin a pop

Number of Palindrome Words : 3

Programming Examples

Java program to print and count all the palindrome words in input sentence