1️⃣ Why Use ArrayList Instead of an Array? Dynamic Sizing – Unlike arrays, ArrayList can grow and shrink automatically. Built-in Methods – Provides useful methods like add(), remove(), contains(), etc ...

At this point, the Scanner still returns a String, although the String contains only one character. To complete the use case, you must convert this one-character String into a single Java char with ...

showConfirmDialog(); showMessageDialog(); and showOptionDialog(). JOptionPane import and methods. For example, the following Java class uses JOptionPane’s showInputDialog() method to prompt for user ...