Computer Science 225
Advanced Programming

Spring 2020, Siena College

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Agenda

• Announcements
  • Lab 0: Setting Up and Refresher due at the start of your lab next week
  • Problem Set 1 due next Wednesday night
• Input/output redirection for Lab 0 and Problem Set 1
• Git and GitHub workflow
• GitHub Issues mechanism for Problem Set 1 submissions
• Some Java You Know
• In-class exercises (5 assignment points)
  • Draw a memory diagram for the StaticStuff example when the main method is about to complete execution.
  • Rewrite the switch statement in the code segment below with if and else statements:

            Scanner kbd = new Scanner(System.in);
    
            System.out.print("Enter a number 1-10: ");
            int number = kbd.nextInt();
    
            switch (number) {
                case 1:
                case 4:
                case 6:
                case 8:
                case 9:
                case 10:
                    System.out.println(number + " is composite.");
                    break;
                case 2:
                case 3:
                case 5:
                case 7:
                    System.out.println(number + " is prime.");
                    break;
                default:
                    System.out.println(number + " is out of the allowed range (1-10)");
                    break;
            }
    

  • Rewrite the for loop below as an enhanced for loop, where a is an ArrayList<Integer>:

            for (int i = 0; i < a.size(); i++) {
                int x = a.get(i);
                // do something with x
            }
    

Examples

• StaticStuff