Java, Check if a String is a palindrome. Case insensitive

by

Use this regex to remove all punctuation and spaces and convert it to lower case

String palindrome = "..." // from elsewhere
boolean isPalindrome = palindrome.replaceAll("[^A-Za-z]", "").toLowerCase().equals(new StringBuilder(palindrome.replaceAll("[^A-Za-z]", "").toLowerCase()).reverse().toString());

More Related Contents:

  1. Extract the difference between two strings in Java
  2. Java. Ignore accents when comparing strings
  3. Efficient way to compare version strings in Java [duplicate]
  4. How to add to string number and keep string in Java?
  5. Why is char[] preferred over String for passwords?
  6. Split string with dot as delimiter
  7. What is the easiest/best/most correct way to iterate through the characters of a string in Java?
  8. Concatenating null strings in Java [duplicate]
  9. Is there a way to instantiate a class by name in Java?
  10. Check if String contains only letters
  11. Is it good practice to use java.lang.String.intern()?
  12. Why is String.chars() a stream of ints in Java 8?
  13. How to compare two java objects [duplicate]
  14. Test if a string contains any of the strings from an array
  15. Get the index of a pattern in a string using regex
  16. How do I check that a Java String is not all whitespaces?
  17. The most sophisticated way for creating comma-separated Strings from a Collection/Array/List?
  18. How much memory does a string use in Java 8?
  19. How to replace a String in java which contains dot?
  20. String concatenation complexity in C++ and Java [duplicate]
  21. Java String.substring method potential memory leak?
  22. Validate a file name on Windows
  23. Print out elements from an Array with a Comma between the elements
  24. The split() method in Java does not work on a dot (.) [duplicate]
  25. How to prevent java.lang.String.split() from creating a leading empty string?
  26. How do I apply the for-each loop to every character in a String?
  27. How to replace first occurrence of string in Java
  28. How do I split strings in J2ME?
  29. Can we access or query the Java String intern (constant) pool?
  30. Java printf using variable field size?

Leave a Comment