Question

Design a class Check which checks whether a word is a palindrome or not.

(Palindrome words are those which spell the same from either ends).

Example: MADAM, LEVEL etc.

The details of the members of the class are given below:

Class name	Check
Data members/instance variables:
wrd	stores a word
len	to store the length of the word
Methods/Member functions:
Check( )	default constructor
void acceptword( )	to accept the word
boolean palindrome( )	checks and returns ‘true’ if the word is a palindrome otherwise returns ‘false’
void display( )	displays the word along with an appropriate message

Specify the class Check giving details of the constructor, void acceptword( ), boolean palindrome( ) and void display( ). Define the main( ) function to create an object and call the functions accordingly to enable the task.

Answer 1

import java.util.Scanner;
class Check
{
String wrd;
int len;
public Check( )
{
wrd="";
len=0;
}
public void acceptword( )
{
Scanner sc=new Scanner(System.in);
System.out.println("Enter a word");
wrd=sc.next( );
len=wrd.length( );
}
public boolean palindrome( )
{
for(int i=0, j=len-1; i<=j; i++, j--)
{
if(wrd.charAt(i)!=wrd.charAt(j))
return false;
}
return true;
}
public void display( )
{
System.out.print(wrd);
if(palindrome( ))
System.out.println("is a Palindrome word");
else
System.out.println("is not a Palindrome word");
}
public static void main(String ar[ ])
{
Check ob=new Check( );
ob.acceptword( );
ob.display( );
}
}