Homework and Helpers

Lab Quiz

• We will provide test class
• Constructor
• Fields
• Getter
• Mutator
• If statement
• Submit to dropbox

Homework Comments

• Two solutions: work in constructor, work in getter
• Don't do redundant tests
• Next homework:
• Use proper indentation
• Include javadoc
• Instance variables should be private
• Only use instance variables for object state

Redundant Tests

• Don't do this:

    if (a < b)
        something();
    else if a >= b
        more();
    

• Do this:

    if (a < b)
        something();
    else // a >= b
        more();
    

• Or maybe this:

    if (a < b)
        something();
    else if a > b
        more();
    else
        evenMore();
    

Instance Variables

• Don't use instance variables where you can use locals
• Instance variables should represent the state of the object

Helper methods for class Card