Week 2 Homework

gistfile1.txt

CommentingOnCodeExercise {

    public static void cartValues() {

	//Declaring and Initialising a variable. Datatype = Integer. Variable name = CartValue and assigning the minimum number 	value of 50. 
        Integer minimumCartValue = 50;
		
    // Declaring and Initialising the variables.
        Integer itemA = 10;
        Integer itemB = 20;
        Integer itemC = 45;
		
	// Calculating the assigned variables itemA + itemB = 30
        Integer cartValue = itemA + itemB;
		
	//Formula calculating if the to either true of false based on 30 >= 50. In this instance, cartMinimumMet would be false. 
        Boolean cartMinimumMet = cartValue >= minimumCartValue;
		
	//Printing out your variables to the debug log. Have we reached the minimum: false
        System.debug('Have we reached the minimum: ' + cartMinimumMet);
		
	//New calculation: cartValue (30) + itemC (45)
        cartValue = cartValue + itemC;
		
	//Formula calculating if the to either true of false based on 75 >= 50. In this instance, cartMinimumMet would be true. 
        cartMinimumMet = cartValue >= minimumCartValue;
		
   //Printing out your variables to the debug log. How about now?: true
        System.debug('How about now? : ' + cartMinimumMet);

    }

public static void conditionalsExercise() {

        Boolean result;
        
        //You do this part!

        // 1. Write a comparison statement that evaluates to false and assign the result to our result variable
        //Don't forget to maintain indentation!
		
		Integer totalValue = 75;
        
        Integer optionOne = 25;
        Integer optionTwo = 10;
        Integer optionThree = 3;
		
        Integer calcTotalValue = optionOne * optionTwo;

        // 2. Declare another boolean variable and write a comparison that evaluates to true, assign it to your variable
        Integer secondValue = 40;
        
        Integer choiceOne = 4;
        Integer choiceTwo = 23;
        Integer choiceThree = 10;
		
        Integer calcSecondValue = choiceOne * choiceThree;
    }


   public static void listsExercise() {
        //You do this part!

        //1.  Declare a list of Strings called myStringList
		List<String> myStringList = new List <String>();
        
        //2.  Add three string values to your list and print it out in the debug log
		myStringList.add('Cake');
        myStringList.add('Ice Cream');
        myStringList.add('Fruit');
        
        //3.  Print out the third value in your list of strings using list indexing.
		System.debug('Value of 2 Index:' + myStringList[2]);
		
        //4.  Declare a list of integers and add the values 1,2,3,4,5 all in one line
        List<Integer> step4FourIntegers = new List<Integer>{1,2,3,4,5};

    }
}

Great job with the lists exercise and your comments! For the conditionals exercise, you just missed one of the steps to use the comparison operators and assign the value back to the boolean result variable. Do you want to give this one another try after we review in class today?