Are chars case sensitive in java?

The comparison is “case- sensitive” meaning that the char ‘A’ is considered to be different from the char ‘a’ . There is a variant of equals() called equalsIgnoreCase() that compares two strings, ignoring uppercase/lowercase differences. The Java String class implement many useful methods.

Read more

Does String include case sensitive?

Both String#includes() and String#indexOf() are case sensitive . Neither function supports regular expressions. To do case insensitive search, you can use regular expressions and the String#match() function, or you can convert both the string and substring to lower case using the String#toLowerCase() function.

Read more