Question

Hint: User will enter certain number of random words, you need to read the input as string and evaluate based on the following instructions.

Write a void method called palindromeCheck that takes NO argument. The method should have functionality to check whether or not the word is a palindrome and print to the screen all of the palindromes, one per line. Also, the last line of the output should have the message: “There are x palindromes out of y words provided by user” (where x is the number of palindrome words detected, and y is the total number of words entered by user). Hint: for this lab exercise you will need the following methods on String objects: length() gives the length of a string (that is, the number of characters it contains) and charAt(i) - gives the character at position i. For example:

int sizeOfString = "bob".length()                    //should be 3

char firstChar = "bob".charAt(0)    //should be ’b’

Answer 1

import java.util.Scanner;

public class CheckPalindrone {

   static String str = null;
  
   static void palindromeCheck(){
       String tokens[] = str.split(" ");
       int count = 0;
       for(int i=0;i<tokens.length;++i){
       String temp = tokens[i];
       int p = 0 , q = temp.length()-1;
       boolean flag = true;
       while(p<q){
           if(temp.charAt(p)!=temp.charAt(q)){
               flag = false;
               break;
           }
           ++p;
           --q;
       }
      
       if(flag)
           ++count;
              
       }
      
       System.out.println("There are " + count + " palindromes out of "+ tokens.length + " words entered by the user");
   }
   public static void main(String[] args) {
       // TODO Auto-generated method stub
      
       Scanner sc = new Scanner(System.in);
       System.out.print("Enter a String: ");
       str = sc.nextLine();
      
       palindromeCheck();
      

   }

}

=====================
See Output

1 import java.utiL.Scanner; 3 public class CheckPalindrone 4 <terminated> CheckPalindrone [Java Application] /Library/Internet Plug-Ins/JavaApplet Enter a String: He has got the skills a MADA There are 2 palindromes out of 7 words entered by the user static String str null; static void palindromeCheckO String tokens ]str.split(" ); int count 0; forCint i-0;i<tokens.Length;++) String temp tokens[i]; int p 0 , q temp·1ength()-1; boolean flag true; while(p<a) 9 10 12 13 14 if(temp.charAt(p)!-temp.charAt(q))i 16 17 18 flagfalse; break; 20 21 a; 23 if(flag) ++count; 25 26 27 28 29 30 public static void main(String] args) 31 32 System.out.printlnC" There are "count "palir //TODO Auto-generated method stub 34 35 36 Scanner scnew Scanner(System. in); System. out.print(" Enter a String: "); str sc.nextLine; palindromeCheckO); 38 39 40 41



Thanks, let me know if there is any concern.