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added a palindrome length checker #8

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Merged
kylewehrung merged 1 commit into from
Nov 7, 2023
Merged

added a palindrome length checker #8

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26 changes: 26 additions & 0 deletions ch04/IsPalindrome.java
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Original file line number Diff line number Diff line change
Expand Up @@ -5,8 +5,10 @@ public static void main(String[] args) {
Random random = new Random();
String input = generateRandomString(random, 6);
boolean isPalindrome = isSpecial(input);
int longestPalindromeLength = getPalindromeLength(input);
System.out.println("Random String: " + input);
System.out.println("Is it a palindrome? " + isPalindrome);
System.out.println("Longest Palindromic Length: " + longestPalindromeLength);
}

public static boolean isSpecial(String text) {
Expand All @@ -31,5 +33,29 @@ public static String generateRandomString(Random random, int length) {
}
return sb.toString();
}

public static int getPalindromeLength(String text) {
String reversed = new StringBuilder(text).reverse().toString();
int maxLength = 0;
int currentLength = 0;

for (int i = 0; i < text.length(); i++) {
if (text.charAt(i) == reversed.charAt(i)) {
currentLength++;
if (currentLength > maxLength) {
maxLength = currentLength;
}
} else {
currentLength = 0;
}
}
return maxLength;
}



}