C# Bool Methods, Return True and FalseCreate methods and properties that return bools. Test for complex conditions.
A method returns true or false. In this way, it can enhance your code with greater abstraction. Returning true and false from a method is a way to improve the object-orientation of your application. It simplifies it.True, FalseBool
Here we declare a class that has several fields, which determine its state. When you have complex classes, you can expose public methods (or properties) that return calculated bool values.Return
Often: Developers will use the "Is" prefix, to indicate the type of result. This is a convention.
Methods: The methods IsCurrent(), IsEmployee() and the property Fired provide an abstraction of the internal state of the object.
Tip: When you return boolean values, you can chain expressions with logical "AND" and "OR".
Fired: This property returns the value of the internal state member with the same name. Properties allow more flexibility when changing implementations.Property
C# program that returns true and false from method
bool _fired = false;
bool _hired = true;
int _salary = 10000;
public bool IsCurrent()
return !this._fired &&
this._salary > 0;
public bool IsExecutive()
return IsCurrent() &&
this._salary > 1000000;
public bool Fired
static void Main()
Employee employee = new Employee();
Console.WriteLine("Is currently employed");
Console.WriteLine("Is an executive");
Console.WriteLine("Is not fired yet");
Is currently employed
Is not fired yet
The bool type is a common type to use as the return type in methods in C# programs. The class above provides the syntax for this pattern. Next, we look at the logic regarding boolean result values and methods that return bools.
Quote: Understanding complicated boolean tests in detail is rarely necessary for understanding program flow (Code Complete).
We developed a class with methods and properties returning bools. We discussed the principles of abstraction in object-oriented programming, and researched the topic in one of the leading books about software construction.
And: We chained these conditional expressions, with short-circuit expressions, for the clearest code.
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