Objectives

1. Write our second program.
2. Work on a program that requires a bit more planning.

Notes

• I would like to write a simple program to print a business card.
  • This holds my name
  • My title or job description
  • My email address.
  It should be 40 characters wide and have a border.
• This is going to be a little messy right now because we don't know how to compute anything in Java.
• Algorithm

  • Print the top border.
    print a blank line with sides
    print name with sides
    print title with sides
    print email with sides
    print a blank line
    print bottom border.
            

• Preparation:
  • The top/bottom border

    1234567890123456789012345678901234567890
    +--------------------------------------+
    |                                      |
    |                                      |
    +--------------------------------------+ 

    • My name "Dan Bennett:
      • 11 characters wide, including the space
      • That means there will be 40-11 = 29 characters of space
      • But we need a border so 29-2 - 27
      • 27/2 = 13 characters on one side and 14 on another

        1234567890123456789012345678901234567890
        |             Dan Bennett              | 

    • Same for the next two lines.
      • Associate Professor - 19 characters
      • 40 - 19 - 2 = 19
      • 9 and 10 spaces

      • 1234567890123456789012345678901234567890
        |         Associate Professor          | 

      • dbennett@pennwest.edu - 21 characters
      • 40 - 21 - 2 = 17
      • 8 and 9 spaces

      • 1234567890123456789012345678901234567890
        |        dbennett@pennwest.edu         | 

  • The shell of a program

    • class BusinessCard {
         public static void main() {
            
         }
      } 

  • The body of main
    • I need 7 output lines as described above

      System.out.println("+--------------------------------------+");
      System.out.println("|                                      |");
      System.out.println("|             Dan Bennett              |");
      System.out.println("|         Associate Professor          |");
      System.out.println("|        dbennett@pennwest.edu         |");
      System.out.println("|                                      |");
      System.out.println("+--------------------------------------+");
             

  • Putting it all together

    • class BusinessCard {
         public static void main() {
             System.out.println("+--------------------------------------+");
             System.out.println("|                                      |");
             System.out.println("|             Dan Bennett              |");
             System.out.println("|         Associate Professor          |");
             System.out.println("|        dbennett@pennwest.edu         |");
             System.out.println("|                                      |");
             System.out.println("+--------------------------------------+");
         }
      }