Behind the scenes, when you write String::toUpperCase, Java binds each element of the stream (String object) to the toUpperCase() method. This means String::toUpperCase is interpreted as s -> s ...

Java Foundation Classes (JFC) offer a rich selection of components for building smart and interactive graphical user interfaces (GUIs). You can display tabular data using the javax.swing.JTable ...

Using Java’s String length method. To get the number of characters in a given piece of text, the Java String length() method is all you need. Just make sure the String is not null, and avoid any ...

Java’s Scanner String input method. To take String input from the user with Java’s Scanner class, just follow these steps. Import java.util.*; to make Java’s Scanner class available; Use the new ...