Boolean Data Type

In the previous step, the first player's move was implemented. In this lesson, we will implement the second player's move and add the ability to take turns.

The bool type represents a Boolean data type that can take one of two values: true or false.


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bool isStudent = true;
bool hasJob = false;
int age = 20;
// expressions can be used
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Logical operations

Logical operations let you combine and modify these values to make decisions in a program. C# provides several logical operators for working with the bool type:

&& - Logical AND. Returns true if both operands are true.
|| - Logical OR. Returns true if at least one operand is true.
! - Logical NOT. Inverts the logical value.

Logical AND


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bool isMan = false;
bool isWoman = true;
bool hasChildren = true;
// a mother is a woman AND she has children
bool isMom = isWoman && hasChildren;
Console.WriteLine(isMom); // True
// a father is a man AND he has children
bool isDad = isMan && hasChildren;
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Logical OR


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bool hasSon = false;
bool hasDaughter = true;
// a parent is someone who has a son OR has a daughter
bool isParent = hasSon || hasDaughter;
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Logical NOT


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bool isWeekend = true;
// a workday is when it is NOT a weekend
bool isWorkday = !isWeekend;
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Exercises

A grandfather is a man (isMan) who has a child (manHasChildren), and that child also has children (childHasChildren). Write code for this expression.


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bool isMan = true;
// Your code
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Write, call, and print the result of a function with the structure bool IsParent(int countSons, int countDaughters), where countSons is the number of sons and countDaughters is the number of daughters.


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bool IsParent(int countSons, int countDaughters)
{
    // Your code
}
bool isParent = IsParent(/* ... */);
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