import java.util.*;
class PalindromeString
{
public static void main(String args[])
{
// Create a Scanner object
Scanner s=new Scanner(System.in);
System.out.println("Enter the string");
// Read the data
String st1=s.nextLine();
// Create StringBuffer obj for st1
StringBuffer sb=new StringBuffer(st1);
// Reverse the letters
sb.reverse();
// Check & Print if palindrome
if(st1.equals(sb.toString()))
System.out.println("Palindrome String");
}
}
Analysis
Create a StringBuffer object. For the
st1
because the reverse()
method is in StringBuffer
.sb.reverse()
Reverse the string associated with StringBuffer
object.st1.equals(sb.toString())
Convert StringBuffer object to String type for checking equality using equals() method.
Other way.. It is manually reversing the string by a simple logic without need of creating a StringBuffer object.
In this way, we can simply check if the given string is palindrome or not in Java. Comment.
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