Unit 3.1

Unit 3.1 Variables and Assignment 1 Hacks

• You want to store the number of apples in a shop. What is the best variable name and data type?
  • 1. numApples, integer (correct!)
• You are storing true or false in a variable that asks if the classroom is cold. What is the best variable name and data type?
  • 1. isCold, boolean (correct!)
• Is itisRainingtodayinsandiego a better option than isRaining?
  • 1. No (correct!)
• Which of the following types of data is best for a true or false question?
  • 1. boolean (correct!)
• What is the difference between an integer and string of numbers?
  • 1. An integer can be changed with addition and subtraction and a string is a set number or string of letters. (correct!) My Own 3 Questions:

1. Mr. Yeung and Mr. Mortensen want to keep track of all their students grade levels: sophomore, junior, senior. What is the best variable name and data type? a. GradeLevel, integer b. gradeLevel, string c. gradelevelofmortandyeungsstudents, string d. gradeLevel, float

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   Click for the answer!

    b
   

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