Type in your answers to each of these questions in a file named
prelab07.txt in your Prelab Questions
directory. Turn in your answers before the
beginning of your laboratory session.
Question #1: What are the six relational operators?
Question #2: What are the three logical operators?
Question #3: Name one of the Java statements that provide for selective behavior.
Question #4: Name the other Java statement that provides for selective behavior.
Question #5: What types of data can be used in a switch statement?
Suggestion: Look at the code for the test
methods in the CalculatorTest class and figure out the
expected values.
Make sure you make a distinction between "expressions" and "statements" when answering the following questions. (Look at the introduction for Lab #3 is the difference isn't clear.)
Code #1: Write an expression that tests if
x is less than 25.0.
Code #2: Write an expression that tests if
x is between 25.0 and 50.0, inclusive. (Reminder: this
requires two separate comparisons joined with a Boolean
operator.)
Code #3: Write an if statement
that prints "Hello" if x is less than
25.0.
Code #4: Write an if statement
that prints "Hello" if x is less than
25.0, "Whatever" if x is between 25.0 and
50.0 (inclusive), and "Goodbye" if x is
greater than 50.0. (Hint: this multi-branch if
requires only two tests.)
Code #5: What can't a switch
statement be used for the selection done in the previous questions?
Give two reasons.