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C++ GPA Calculator - Calculate GPA based on course marks (CS112 Lecture 7 & 8)

Learn how to calculate GPA based on course marks using C++. Handle non-numerical inputs and inputs outside the range of 0-100.

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C++ GPA Calculator - Calculate GPA based on course marks (CS112 Lecture 7 & 8)

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  1. CS112 – 2017 / 2018 2nd TermProgramming ILecture 7 & 8: C++ Basics VI

  2. Lecture Objectives • Pb#11 – GPA Calculator • Pb #12 – Printing Stars • Pb #13 – Check Palindrome • C++ Iterative Constructs • for • while • do while • 2. Nested and Infinite Loops • 3.C-Strings

  3. Are u still trying to install CodeBlocsk ?Wa’etak Teen ya Mnayel !

  4. Pb#11: GPA Calculator • Given course mark, calculate GPA. • >= 90 A+ • >= 85 A • >= 80 B+ • >= 75 B • >= 70 C+ • >= 65 C • >= 60 D+ • >= 50 D • F • How to exclude non-numerical inputs? • How to handle inputs outside the range 0-100?

  5. While Syntax

  6. While Semantics

  7. Computing an Average int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl;

  8. Suppose input contains: 1 5 3 1 6 Execution Trace listSize 4 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl;

  9. Suppose input contains: 1 5 3 1 6 Execution Trace listSize 4 numberProcessed 0 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl;

  10. Suppose input contains: 1 5 3 1 6 Execution Trace listSize 4 numberProcessed 0 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 0

  11. Suppose input contains: 1 5 3 1 6 Execution Trace listSize 4 numberProcessed 0 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 0

  12. Suppose input contains: 1 5 3 1 6 Execution Trace listSize 4 numberProcessed 0 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 0 value --

  13. Suppose input contains: 1 5 3 1 6 Execution Trace listSize 4 numberProcessed 0 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 0 value 1

  14. Suppose input contains: 1 5 3 1 6 Execution Trace listSize 4 numberProcessed 0 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 0 1 value 1

  15. Suppose input contains: 1 5 3 1 6 Execution Trace listSize 4 numberProcessed 0 1 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 1 value 1

  16. Suppose input contains: 1 5 3 1 6 Execution Trace listSize 4 numberProcessed 1 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 1 value 1

  17. Suppose input contains: 1 5 3 1 6 Execution Trace listSize 4 numberProcessed 1 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 1 value --

  18. Suppose input contains: 15 3 1 6 Execution Trace listSize 4 numberProcessed 1 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 1 value 5

  19. Suppose input contains: 15 3 1 6 Execution Trace listSize 4 numberProcessed 1 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 1 6 value 5

  20. Suppose input contains: 15 3 1 6 Execution Trace listSize 4 numberProcessed 1 2 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 6 value 5

  21. Suppose input contains: 15 3 1 6 Execution Trace listSize 4 numberProcessed 2 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 6 6 value 5

  22. Suppose input contains: 15 3 1 6 Execution Trace listSize 4 numberProcessed 2 2 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 6 value --

  23. Suppose input contains: 153 1 6 Execution Trace listSize 4 numberProcessed 2 2 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 6 value 3

  24. Suppose input contains: 153 1 6 Execution Trace listSize 4 numberProcessed 2 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 6 9 value 3

  25. Suppose input contains: 153 1 6 Execution Trace listSize 4 numberProcessed 2 3 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 9 value 3

  26. Suppose input contains: 153 1 6 Execution Trace listSize 4 numberProcessed 3 3 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 9 value 3

  27. Suppose input contains: 153 1 6 Execution Trace listSize 4 numberProcessed 3 3 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 9 value --

  28. Suppose input contains: 1531 6 Execution Trace listSize 4 numberProcessed 3 3 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 9 value 1

  29. Suppose input contains: 1531 6 Execution Trace listSize 4 numberProcessed 3 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 9 10 value 1

  30. Suppose input contains: 1531 6 Execution Trace listSize 4 numberProcessed 3 4 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 10 value 1

  31. Suppose input contains: 1531 6 Execution Trace listSize 4 numberProcessed 3 4 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 10 value 1

  32. average 2.5 Suppose input contains: 1531 6 Execution Trace listSize 4 numberProcessed 3 4 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 10

  33. Suppose input contains: 1531 6 Execution Trace listSize 4 numberProcessed 3 4 int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl; sum 10 average 2.5

  34. Suppose input contains: 15316 Execution Trace Stays in stream until extracted int listSize = 4; int numberProcessed = 0; double sum = 0; while (numberProcessed < listSize) { double value; cin >> value; sum += value; ++numberProcessed; } double average = sum / numberProcessed ; cout << "Average: " << average << endl;

  35. The For Statement • Syntax for(ForInit ; ForExpression; PostExpression) Action • Example for (int i = 0; i < 3; ++i) { cout << "i is " << i << endl; }

  36. Execution Trace i 0 for (int i = 0; i < 3; ++i) {cout << "i is " << i << endl; } cout << "all done" << endl;

  37. Execution Trace i 0 for (int i = 0; i < 3; ++i) {cout << "i is " << i << endl; } cout << "all done" << endl;

  38. Execution Trace i 0 for (int i = 0; i < 3; ++i) {cout << "i is " << i << endl; } cout << "all done" << endl; i is 0

  39. Execution Trace i 0 for (int i = 0; i < 3; ++i) {cout << "i is " << i << endl; } cout << "all done" << endl; i is 0

  40. Execution Trace i 1 for (int i = 0; i < 3; ++i) {cout << "i is " << i << endl; } cout << "all done" << endl; i is 0

  41. Execution Trace i 1 for (int i = 0; i < 3; ++i) {cout << "i is " << i << endl; } cout << "all done" << endl;

  42. Execution Trace i 1 for (int i = 0; i < 3; ++i) {cout << "i is " << i << endl; } cout << "all done" << endl; i is 0 i is 1

  43. Execution Trace i 1 for (int i = 0; i < 3; ++i) {cout << "i is " << i << endl; } cout << "all done" << endl; i is 0 i is 1

  44. Execution Trace i 2 for (int i = 0; i < 3; ++i) {cout << "i is " << i << endl; } cout << "all done" << endl; i is 0 i is 1

  45. Execution Trace i 2 for (int i = 0; i < 3; ++i) {cout << "i is " << i << endl; } cout << "all done" << endl; i is 0 i is 1

  46. Execution Trace i 2 for (int i = 0; i < 3; ++i) {cout << "i is " << i << endl; } cout << "all done" << endl; i is 0 i is 1 i is 2

  47. Execution Trace i 2 for (int i = 0; i < 3; ++i) {cout << "i is " << i << endl; } cout << "all done" << endl; i is 0 i is 1 i is 2

  48. Execution Trace i 3 for (int i = 0; i < 3; ++i) {cout << "i is " << i << endl; } cout << "all done" << endl; i is 0 i is 1 i is 2

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