what am i down wrong

Question

what am i down wrong
```variable_assignment.mm
int mathTotal = 5;
 bool isComplete = true ;
for( int mathTotal <= 25; mathTotal++) {
}
```

Jennifer Nordell · Accepted Answer

First, it's not necessary to initialize your variables.  You just need to declare them.  Secondly, your for loop is set up incorrectly.  You never tell it the starting point and you will want another variable here.  Third, you never set isComplete to true after the loop has run.  In fact, it's already marked as completed before you run it because you initialized it that way.  Take a look at my solution: 
```swift
int mathTotal;
bool isComplete;
for(int i = 5; i <= 25; i++) {
  mathTotal += i;
}
isComplete = true;
```

Steven Deutsch · Answer

Hey Andre Robinson,
Let me see if I can clear a few thing sup for you. First, your mathTotal and isComplete variables don't need default values.
Second, lets take a look at the logic of the loop. Your loop needs 3 things to be set up properly:
1) An Index
2) A condition
3) An incrementor
The index will be of type Int, we'll call it i and assign it a starting value of 5.
The condition will dictate when the loop evaluates the code inside its body. We want this loop to execute while i is less than or equal to 25.
The incrementor will be i++ which is just shorthand for i + 1. This means everytime the loop finishes an iteration, the value of i will increase by 1. The loop will then run again and continue to do so until the condition evaluates as false.
Finally, after this loop finishes we will set the value of isComplete to true by assigning it the value.
```Swift
int mathTotal;
bool isComplete;
for (int i = 5; i <= 25; i++) {
  mathTotal += i;
}
isComplete = true;
```
Good Luck

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Andre Robinson

Andre Robinson

what am i down wrong

2 Answers

Jennifer Nordell

Jennifer Nordell

Andre Robinson

Andre Robinson

Steven Deutsch

Steven Deutsch

Andre Robinson

Andre Robinson