C++

2) Variable Initialization Look at program Example 3 above // Calculate grade average Change this line of code: int sumGrades = 0; To: int sumGrades; Run the code with the =0 removed. Click on continue if asked to do so. Explain what happens with the =0 removed. Explain why you need to initialize variables. Hint: When you declare a variable in C++, what is still in the bytes allocated for the variable. Use filename: week12YourNameWhile2ProgTest

Code Example 3 Try it #include using namespace std; int main ( ) { // Calculate grade average int numberGrades = 0; int sumGrades = 0; int aGrade = 0; cout << "How many grades to enter: "; cin >> numberGrades; int i = 1; // 1st element of loop - declare and set initial value while ( i <= numberGrades ) { // 2nd element of loop - condition cout << "Enter Grade: "; cin >> aGrade; sumGrades = sumGrades + aGrade; i++; // 3rd element of loop - update value } cout << "Grade Average = " << sumGrades/numberGrades << endl; system ("pause"); return 0; }