@@ -0,0 +1,419 @@
+import javax.swing.JOptionPane;%0A%0Aclass MyClass %7B%0A%09int number;%0A%09char symbol;%0A%7D%0A%0Apublic class UsingObjectDemo %7B // labeled as %22UsingObjectApplication%22 in the book%0A%09public static void main(String%5B%5D args) %7B%0A%09%09MyClass object = new MyClass();%0A%09%09object.number = 100;%0A%09%09object.symbol = 'A';%0A%09%09%0A%09%09String text = %22Number: %22 + object.number + %22%5Cn%22 + %22Symbol: %22 + object.symbol;%0A%09%09%0A%09%09JOptionPane.showMessageDialog(null, text);%0A%09%7D%0A%7D%0A

Create UsingObjectDemo.java