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  1. #include <iostream>
  2. #include <string>
  3. #include <windows.h>
  4. #include <cstdlib>
  5. #include <iomanip>
  6. #include <conio.h>
  7. #include <fstream>
  8.  
  9. using namespace std;
  10.  
  11. void gotoxy(int x, int y) 
  12. { 
  13.     COORD coord;
  14.     coord.X = x; 
  15.     coord.Y = y;
  16.     SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);
  17. }
  18.  
  19. int createClassFunction()
  20. {
  21.  
  22. 	ofstream create_classList_file;
  23.  
  24. 	system("cls");
  25.  
  26. 	int yCoord;
  27. 	int itr;
  28.  
  29. 	string keepGoing = "y";
  30. 	string className;
  31.  
  32. 	int studentNum = 0;
  33. 	string firstName = "0";
  34. 	string lastName = "0";
  35.  
  36. 	int assignmentMark = 0;
  37. 	int midtermMark = 0;
  38. 	int finalTestMark = 0;
  39. 	int overallAverageMark = 0;
  40. 	string letterGradeMark = "0";
  41.  
  42.  
  43.  
  44.  
  45. 	struct classInfo
  46. 			{
  47. 				int studentNum;
  48. 				string firstName;
  49. 				string lastName;
  50. 				int assignmentMark;
  51. 				int midtermMark;
  52. 				int finalTestMark;
  53. 				float overallAverageMark;
  54. 				string letterGradeMark;
  55. 			};
  56.  
  57. 	classInfo student[30] =
  58. 				{ 
  59. 					{ 
  60. 						studentNum, 
  61. 						firstName, 
  62. 						lastName, 
  63. 						assignmentMark, 
  64. 						midtermMark, 
  65. 						finalTestMark, 
  66. 						overallAverageMark, 
  67. 						letterGradeMark
  68. 					}
  69. 				};
  70.  
  71.  
  72.  
  73. 	gotoxy(5,4);
  74. 		cout << "Class name:   ";
  75. 		cin >> className;
  76.  
  77. 		system("cls");
  78.  
  79. 	create_classList_file.open(className + ".txt", ios::out | ios::binary );
  80.  
  81. 	itr = 0;
  82. 	while(itr < 30)
  83. 		{
  84. 			system("cls");
  85.  
  86. 			yCoord = 6;
  87.  
  88. 			gotoxy(5,yCoord);
  89. 				cout << "Student Num:  ";
  90. 				cin >> student[itr].studentNum;
  91. 				yCoord += 2;
  92.  
  93. 			gotoxy(5, yCoord);
  94. 				cout << "First name:  ";
  95. 				cin >> student[itr].firstName;
  96. 				yCoord += 2;
  97.  
  98. 			gotoxy(5, yCoord);
  99. 				cout << "Last name   ";
  100. 				cin >> student[itr].lastName;
  101. 				yCoord += 2;
  102.  
  103. 			 student[itr].assignmentMark = 0;
  104. 			 student[itr].midtermMark = 0;
  105. 			 student[itr].finalTestMark = 0;
  106. 			 student[itr].overallAverageMark = 0;
  107. 			 student[itr].letterGradeMark = "0";
  108.  
  109. 			create_classList_file.write((char *) &student[itr], sizeof(classInfo));
  110.  
  111. 			gotoxy(5,yCoord);
  112. 				cout << "Press any key to enter another(N to quit):  ";
  113. 				cin >> keepGoing;
  114.  
  115. 				if(keepGoing == "n" || keepGoing == "N")
  116. 					break;
  117. 				else
  118. 					itr++;
  119.  
  120. 		} // end of while loop
  121.  
  122. 	create_classList_file.close();
  123.  
  124. 	return 0;
  125. }
  126.  
  127. int viewClassFunction()
  128. {
  129. 	int x;
  130. 	int itr;
  131. 	int numOfStudents;
  132.  
  133. 	int yCoord;
  134.  
  135. 	system("cls");
  136.  
  137. 	ifstream view_classList_file;
  138.  
  139. 	struct classInfo
  140. 			{
  141. 				int studentNum;
  142. 				string firstName;
  143. 				string lastName;
  144. 				int assignmentMark;
  145. 				int midtermMark;
  146. 				int finalTestMark;
  147. 				float overallAverageMark;
  148. 				string letterGradeMark;
  149. 			};
  150.  
  151. 	string className;
  152.  
  153. 	gotoxy(5,4);
  154. 		cout << "Class file to open:   ";
  155. 		cin >> className;
  156.  
  157. 	view_classList_file.open(className + ".txt", ios::in | ios::binary);
  158.  
  159. 	/*
  160.  
  161. 	view_classList_file.seekg(0l, ios::end);
  162. 	int size = view_classList_file.tellg();
  163. 	cout << size;
  164. 	system("pause");
  165.  
  166. 	*/
  167.  
  168. 	classInfo student[30];
  169.  
  170.  
  171. 	yCoord = 6;
  172. 	x = 0;
  173. 	while(!view_classList_file.eof())
  174. 		{
  175. 			if(view_classList_file.eof())
  176. 				break;
  177. 			view_classList_file.read((char *) &student[x], sizeof(classInfo));
  178.  
  179. 			gotoxy(5,yCoord);
  180. 				cout << "Student Num:  " << student[x].studentNum;
  181. 			yCoord += 2;
  182.  
  183.  
  184. 			gotoxy(5, yCoord);
  185. 				cout << "First name:  " << student[x].firstName;
  186. 			yCoord += 2;
  187.  
  188.  
  189. 			gotoxy(5, yCoord);
  190. 				cout << "Last name   " << student[x].lastName;
  191. 			yCoord += 2;
  192.  
  193. 			x++;
  194. 		}
  195.  
  196.  
  197. 	/*
  198. 	int i = 0;
  199. 	while(student[i].studentNum > 0)
  200. 		{
  201. 			gotoxy(5,yCoord);
  202. 				cout << "Student Num:  " << student[i].studentNum;
  203. 			yCoord += 2;
  204.  
  205.  
  206. 			gotoxy(5, yCoord);
  207. 				cout << "First name:  " << student[i].firstName;
  208. 			yCoord += 2;
  209.  
  210.  
  211. 			gotoxy(5, yCoord);
  212. 				cout << "Last name   " << student[i].lastName;
  213. 			yCoord += 2;
  214.  
  215. 			i++;
  216. 		}
  217. 	*/
  218.  
  219. 	/*
  220. 		if(student[i].gradestuff == 0) 
  221. 				{ 
  222. 					cout << "whatever grade:  n/a"; 
  223. 				}
  224.  
  225. 			else
  226. 	*/
  227.  
  228.  
  229.  
  230. 	system("pause");
  231.  
  232. 	return 0;
  233.  
  234. }
  235.  
  236. int main()
  237. {
  238. 	int menuChoice;
  239. 	menuChoice = 0;
  240.  
  241. 	while(menuChoice != 7 && menuChoice< 8)
  242. 		{
  243.  
  244. 			system("cls");
  245.  
  246. 			gotoxy(5,2);
  247. 			cout << "Please select an option";
  248. 				gotoxy(5,4);
  249. 				cout << "1. Create Class";
  250. 				gotoxy(5,5);
  251. 				cout << "2. Add student";
  252. 				gotoxy(5,6);
  253. 				cout << "3. Update class data";
  254. 				gotoxy(5,7);
  255. 				cout << "4. Update student data";
  256. 				gotoxy(5,8);
  257. 				cout << "5. View class data";
  258. 				gotoxy(5,9);
  259. 				cout << "6. View student data";
  260. 				gotoxy(5,11);
  261. 				cout << "7. Exit";
  262. 				gotoxy(6,13);
  263. 				cout << "Option:   ";
  264. 				cin >> menuChoice;
  265.  
  266.  
  267. 			if(menuChoice == 1)
  268. 				createClassFunction();
  269. 			/*
  270. 			else if(menuChoice == 2)
  271. 				addStudent();
  272. 			else if(menuChoice == 3)
  273. 				updateClassData();
  274. 			else if(menuChoice == 4)
  275. 				updateStudentData();
  276. 			*/
  277. 			else if(menuChoice == 5)
  278. 				viewClassFunction();
  279. 			/*
  280. 			else if(menuChoice == 6)
  281. 				viewStudentData();
  282. 			*/
  283. 			else if(menuChoice == 7)
  284. 				break;
  285. 		 }
  286.  
  287. 		 return 0;
  288.  
  289. }
  290.  
  291. /*
  292.  
  293. Use file size to determine how many students, sizeof(structureName), logicalFileName.tellg() is used to get size of a file
  294. 30 student limit
  295. Only update grades
  296.  
  297. seekg
  298. tellg
  299.  
  300. filename.seekg(0l, ios::end)
  301.  
  302. */
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
copy 
Standard input is empty
compilation info 
prog.cpp:3:21: fatal error: windows.h: No such file or directory
 #include <windows.h>
                     ^
compilation terminated.
stdout
copy 
Standard output is empty
https://ideone.com/zHTwc8
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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