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iOS Objective-C Basics Scope and Loops Review Scope and Loops

Rodrigo Alarcon
Rodrigo Alarcon
8,028 Points
Posted by Rodrigo Alarcon
Rodrigo Alarcon
8,028 Points

Please help, what am i doing wrong

Create a for loop that will begin with a value of 5 and end with a value of 25. In each iteration, add the incrementing value to mathTotal. When the loop has finished running, set 'isComplete' to true. (HINT: the last value used INSIDE the loop should be 25)

variable_assignment.mm 
int mathTotal;
bool isComplete;
for (int = 5; int < 26; int++) {
  isComplete = true;
}

1 Answer

Martin Wildfeuer
PLUS
Martin Wildfeuer
Courses Plus Student 11,071 Points
Martin Wildfeuer
Martin Wildfeuer
Courses Plus Student 11,071 Points

int is the type of your mathTotal variable and not the variable itself, so you can't assign values to the type. Moreover int is a reserved keyword, so you can't use it as a variable name either. Having said that, the syntax of your for loop is not correct. It rather works like this, specifically in this case:

for (int indexVariableName = intitalValue; indexVariableName < maxValue; indexVariableName++) {
   // indexVariableName is available in this scope
}

Moreover, the assignment asks you to "In each iteration, add the incrementing value to mathTotal", which is not included in your code. This is how you could do that:

int mathTotal;
bool isComplete;

for (int i = 5; i < 26; i++) {
  mathTotal += i; // In each iteration, add the incrementing value to mathTotal.
  isComplete = true;
}

Hope that helps :)

Rodrigo Alarcon
Rodrigo Alarcon
8,028 Points
Rodrigo Alarcon
Rodrigo Alarcon
8,028 Points

Thanks, It really helped me and helped me understand how it works.