1. Explain the major differences (advantages and disadvantages) between the BlueJ and Netbeans IDEs. (5 marks) 2. Explain what the Clean and Build command does in the Netbeans environment (5 marks). Make sure you explain the result of this command as well as the mechanics of what it does. 3. What is the purpose of a code template in the Netbeans editor? What are their advantages and disadvantages? (5 marks). 4. What are the sources, design and properties windows used in Netbeans graphical user interface(GUI) project and and how they are related