PALINDROME OF A NUMBER AND A STRING IN SAME USER INPUT :
I have gone through lots of palindrome programs but did not find any Program which give me palindrome of string and Integer in same input.
I have used Function Overloading Concept.
Following is code snippet.
I have gone through lots of palindrome programs but did not find any Program which give me palindrome of string and Integer in same input.
I have used Function Overloading Concept.
Following is code snippet.
import java.util.Scanner;
public class PalStringAndNumber {
public static void main(String args[])
{
Scanner sca =new Scanner(System.in);
System.out.println(" Enter Number or string to check whether it is palindrome");
while (sca.hasNext()){
String input=sca.nextLine();
if(!input.matches("^\\d*$")){ // check for if ( string contain numbers..?)
isPalindrome(input); // call to isPalindrome(String str) method
if(isPalindrome(input)){
System.out.println("you Entered " +input + " is Palindrome ");
}
else{
System.out.println("you Entered " +input + " is NOT Palindrome");
}
}
if( input.matches("^\\d*$")){
// System.out.println("you entered number");
if(isPalindrome(input)){
System.out.println("you Entered " +input + " is Palindrome ");
}
else{
System.out.println("you Entered " +input + " is NOT Palindrome");
}
}
}
}
public static boolean isPalindrome(String str) {
int i;
int n=str.length();
String revstr="";
for(i=n-1;i>=0;i--)
revstr=revstr+str.charAt(i);
if(revstr.equals(str))
return true;
else
return false;
}
public static boolean isPalindrome(int number) {
int palindrome = number; // copied number into variable
int reverse = 0;
while (palindrome != 0) {
int remainder = palindrome % 10;
reverse = reverse * 10 + remainder;
palindrome = palindrome / 10;
}
// if original and reverse of number is equal means
// number is palindrome in Java
if (number == reverse) {
return true;
}
return false;
}
} Enter Number or string to check whether it is palindrome
adi4444ida
you Entered adi4444ida is Palindrome
In code
if( input.matches("^\\d*$")) ("^\\d*$")) is regex
You can read more about regex in followiong link.
Know Regex
Copy this code in your IDE and play around it.
If any problem in code let me know.
if( input.matches("^\\d*$")) ("^\\d*$")) is regex
You can read more about regex in followiong link.
Know Regex
Copy this code in your IDE and play around it.
If any problem in code let me know.
