What is equals ignore case in Java?

containsIgnoreCase is a static method of the StringUtils class that checks whether a given string contains the complete search string as a whole, while ignoring the case considerations . The comparison is case-insensitive in nature.

Java String equalsIgnoreCase () Method The equalsIgnoreCase() method compares two strings, ignoring lower case and upper case differences. This method returns true if the strings are equal, and false if not.

Yes, contains is case sensitive . You can use java. util.

use toUpperCase() or toLowerCase() method of String class . Show activity on this post. You ignore case when you treat the data, not when you retrieve/store it. If you want to store everything in lowercase use String#toLowerCase, in uppercase use String#toUpperCase.