Tag: How do I make Java case-sensitive?

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.

HashMap allows a single null key and multiple null values. TreeMap does not allow null keys but can have multiple null values . HashMap allows heterogeneous elements because it does not perform sorting on keys. TreeMap allows homogeneous values as a key because of sorting.

You know keys in the java. util. HashMap are case sensitive .