Task 1- Write a program that allows the user to enter a String and then uses a f

Question

Task 1- Write a program that allows the user to enter a String and then uses a for loop to check whether the String is a palindrome, which means that if you reverse the order of the characters in the String, you get the same String back.

The program should output, String is a palindrome or not.

This program is a common program and lots of code exists on the Internet. Please right a short paragraph explaining how your program works above your source code.

Attach Snipping photos of source code and output.

For example:

Please Enter a string:

noon

noon is a palindrome //Output

Please Enter a string:

abcdcba is a palindrome // Output

Please Enter a string:

cat is not a palindrome //Output

Explanation / Answer

StringPalindrome.java

public class StringPalindrome {

  
   public static void main(String[] args) {
       java.util.Scanner in = new java.util.Scanner(System.in);
       System.out.print("Please Enter a string: ");
       String str = in.nextLine();
       boolean status = isPalindrome(str);
       if(status){
           System.out.println(str+" is a palindrome");
       }
       else{
           System.out.println(str+" is not a palindrome");
       }
   }
   public static boolean isPalindrome(String str){
       // if length is 0 or 1 then String is palindrome
if(str.length() == 0 || str.length() == 1)
return true;
for(int i=0; i<str.length()/2; i++){
   /*checking each character from front and back both are same or not. if not, strign is not palindrome*/
if(str.charAt(0) != str.charAt(str.length()-1))
{
   return false;
}
}
/*if all characters from front anf nack then it is palindrome string.*/
return true;
   }
}

Output:

Please Enter a string: abcdcba
abcdcba is a palindrome

Please Enter a string: cat
cat is not a palindrome

Please Enter a string: noon
noon is a palindrome

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.