java check palindrome with string builder
public static boolean isPalindrome(String str){
StringBuilder sb=new StringBuilder(str);
sb.reverse();
String rev=sb.toString();
if(str.equals(rev)){
return true;
}else{
return false;
}
}generate palindrome java
//This function generates a palindrom by recursively reversing a String,
//recursively add it and checks if it's a palindrom
public static String generatePalindrom(String s) {
return s.equals(reverseString(s)) ? s
: generatePalindrom(String.valueOf(Integer.parseInt(s) + Integer.parseInt(reverseString(s))));
}
public static String reverseString(String s) {
return s.length() == 1 ? s : s.charAt(s.length() - 1) + reverseString(s.substring(0, s.length() - 1));
}Copyright © 2021 Codeinu
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