3.5.1. Preview Questions#
Complete these questions before class to prepare for the chapter. Use the dropdowns to check your answers.
3.5.1.1. True or False#
1. A void method in C# must include a return statement.
Answer
False — void methods may omit return; it is optional.
2. Method parameters are local variables within the method body.
Answer
True — Parameters behave like local variables scoped to the method.
3. Two methods can share the same name if their parameter lists differ (overloading).
Answer
True — Method overloading is fully supported in C#.
4. A method must always return a value.
Answer
False — Methods declared void return nothing.
5. The method signature includes the method name and its parameter types.
Answer
True — The signature = name + parameter type list (not the return type in C#).
6. You can split your helper methods into a separate .cs file without creating a new project.
Answer
True — A project can span many .cs files. You only need a new project (a new .csproj) when you need a second entry point (Main()). Helper methods in additional .cs files share the same project and can be called from Main() freely.
3.5.1.2. Multiple Choice#
1. What keyword sends a value back from a method to its caller?
a) send
b) output
c) return
d) yield
Answer
c) return — return exits the method and passes the value back.
2. Which method signature is syntactically correct in C#?
a) static void Greet(string name)
b) void static Greet(string name)
c) Greet static void(string name)
d) static Greet void(string)
Answer
a) static void Greet(string name) — The modifier (static) precedes the return type, which precedes the name.
3. What happens when a method is called with fewer arguments than required parameters?
a) Uses null automatically
b) Compiles but crashes at runtime
c) Causes a compile-time error
d) Uses zero for numeric types
Answer
c) Causes a compile-time error — Missing required arguments produce a compile error.
4. A method that calls itself is called:
a) Iterative
b) Recursive
c) Polymorphic
d) Abstract
Answer
b) Recursive — Recursion is when a method invokes itself.
5. Method overloading means:
a) A method that calls other methods
b) Multiple methods with the same name but different parameters
c) A method with too many lines
d) Calling a method in a loop
Answer
b) Multiple methods with the same name but different parameters — Overloading lets you reuse a name with different parameter signatures.
Footnotes