Try It! In the InputSnippet file, add code to prompt the user for two more values, read those values into variables, and write a message using each value in a sentence. Create comments 4 and 5 to describe what you are doing. Identify and choose the correct data types to use. Compile and run the program to check your work. • input the sales tax rate for the user’s state • input the number of courses the user is taking SECTION REVIEW 4.2 Check Your Understanding 1. Which symbol is used as the assignment operator in Java? 2. A String literal is surrounded by _____. 3. Describe the function of the concatenation operator. 4. How is a variable in Java set to be a constant? 5. What does this statement do, and when would it be used? Scanner input = new Scanner( System.in ) Build Your Vocabulary As you progress through this course, develop a personal computer science glossary. This will help you build your vocabulary and prepare you for a career. Write a definition for each of the following terms and add it to your computer science glossary. call concatenation operator constant exception hard-coding literal value prompt String literal Copyright Goodheart-Willcox Co., Inc. Chapter 4 Variables 93