Write a program to print whether the given numberr is palindrome or not?
Source code of the program:
import java.util.*;
class Palindrome
{
public static void main(String args[])
{
String original, reverse="";
Scanner in = new Scanner(System.in);
System.out.println("Enter a string to check if it is a palindrome");
original = in.nextLine();
int length = original.length();
for ( int i = length - 1 ; i >= 0 ; i-- )
reverse = reverse + original.charAt(i);
if (original.equals(reverse))
System.out.println("Entered string is a palindrome.");
else
System.out.println("Entered string is not a palindrome.");
}
}
Output of the program:
Another method to check palindrome:
import java.util.*;
class Palindrome
{
public static void main(String args[])
{
String inputString;
Scanner in = new Scanner(System.in);
System.out.println("Input a string");
inputString = in.nextLine();
int length = inputString.length();
int i, begin, end, middle;
begin = 0;
end = length - 1;
middle = (begin + end)/2;
for (i = begin; i <= middle; i++) {
if (inputString.charAt(begin) == inputString.charAt(end)) {
begin++;
end--;
}
else {
break;
}
}
if (i == middle + 1) {
System.out.println("Palindrome");
}
else {
System.out.println("Not a palindrome");
}
}
}
Both the above code consider a string as case sensitive, you can modify them so that they are not case sensitive.
