How do you use case-sensitive in Java?

Java is a case-sensitive language, which means that the upper or lower case of letters in your Java programs matter .28 Oca 2019

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. Tip: Use the compareToIgnoreCase() method to compare two strings lexicographically, ignoring case differences.

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