Nested 'if' Statements
Part of the Fundamentals section of Coddy's Dart journey. Lesson 35 of 94.
Nested if statements check conditions inside other conditions, creating complex decision paths. The inner condition only evaluates when the outer condition is true.
void main() {
int age = 25;
bool hasLicense = true;
if (age >= 18) {
print('You are an adult');
if (hasLicense) {
print('You can drive a car');
}
}
}Output:
You are an adult
You can drive a carChallenge
EasyCreate a program that determines a student's grade based on their exam score and attendance record:
- Declare an integer variable
examScorewith a value of 78 - Declare a boolean variable
hasGoodAttendancewith a value of true - Use nested if statements to determine the student's grade according to these rules:
- If
examScoreis 90 or above, the grade is "A" - If
examScoreis between 80 and 89: - If
hasGoodAttendanceis true, the grade is "B+" - Otherwise, the grade is "B"
- If
examScoreis between 70 and 79: - If
hasGoodAttendanceis true, the grade is "C+" - Otherwise, the grade is "C"
- If
examScoreis below 70, the grade is "F"
Print the final grade with the exact format: Student grade: X (where X is the determined grade)
Try it yourself
void main() {
// Declare your variables here
int examScore = 78;
bool hasGoodAttendance = true;
String grade;
// Implement nested if statements to determine the grade
// Print the final grade
print("Student grade: " + grade);
}This lesson includes a short quiz. Start the lesson to answer it and track your progress.
All lessons in Fundamentals
4Operators Part 2
Comparison OperatorsLogical ANDLogical ORLogical NOTType Test OperatorsRecap - Making Comparisons7Working with Strings
String ConcatenationString InterpolationMulti-line StringsString PropertiesBasic String Methods10Collections - Maps Basics
What are Maps?Creating a MapAccessing Values by KeyKey-Value PairsGetting Map SizeGetting KeysGetting ValuesChecking if a Key Exists13Null Safety In Depth
Understanding NullNullable TypesNon-Nullable TypesNull Assertion OperatorLate InitializationRecap - Handling Null Safely16Fundamentals Challenges
Challenge: List of calculationChallenge: Sum of numbersChallenge: Find product2Variables and Basic Data Types
What are Variables?StringsIntegers (int)Doubles (double)Booleans (bool)Type Inference with 'var'Final VariablesConstant VariablesNaming ConventionsBasic Null SafetyRecap - Declaring Variables8Control Flow - Loops
The 'for' LoopThe 'while' LoopThe 'do-while' LoopUsing 'break' in LoopsUsing 'continue' in LoopsRecap - Repeating Code3Operators Part 1
Arithmetic OperatorsInteger DivisionModulo OperatorIncrement and DecrementAssignment ShortcutsRecap - Simple Calculations6Control Flow - Decision Making
The 'if' StatementThe 'else' StatementThe 'else if' StatementRecap - Simple DecisionsNested 'if' StatementsThe 'switch' Statement9Collections - Lists Basics
What are Lists?Creating a ListAccessing by IndexGetting List LengthAdding ElementsRemoving ElementsChecking if a List is EmptyIterating Over a List12Functions Advanced
Optional Positional ParametersNamed ParametersRequired Named ParametersDefault Parameter ValuesRecap - Function Parameters15Project: Simple Calculator
Setting UpDeclaring NumberPractice on your own: Online Dart compiler