#include <stdio.h> #include <stdlib.h> #include <ctype.h> void gotoxy(int column, int line); int main(); int addProduct(); int displayProduct(); //prototype struct product { int quantity, reorder, i, id; char name[20]; float price; }; COORD coord = { 0, 0 }; void gotoxy(int x, int y) { coord.X = x; coord.Y = y; SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord); } int main() { int choice; gotoxy(17, 5); printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2 SYZ INVENTORY PROGRAM \xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2"); gotoxy(17, 20); printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2"); gotoxy(22, 8); printf("1. Add Product\n\n"); gotoxy(22, 10); printf("2. Display Product\n\n"); gotoxy(22, 12); printf("3. Search Product\n\n"); gotoxy(22, 14); printf("4. Reorder Level of Product\n\n"); gotoxy(22, 16); printf("5. Update Product\n\n"); gotoxy(22, 18); printf("6. Exit\n\n"); gotoxy(22, 22); printf("Please Enter Your Choice : "); scanf(" %d", &choice); switch (choice) { case 1: addProduct(); break; case 2: displayProduct(); break; case 3: searchProduct(); break; case 4: reorderProduct(); break; case 5: updateProduct(); break; case 6: break; default: system("cls"); main(); } return (0); } /*MENU CODE ENDS !*/ int addProduct() { FILE *fp; int i = 0; struct product a; system("cls"); fp = fopen("inventory.txt", "a+t"); char checker; do { system("cls"); gotoxy(17, 5); printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2 SYZ INVENTORY PROGRAM \xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2"); gotoxy(17, 20); printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2"); gotoxy(22, 8); printf("Enter product ID : "); scanf(" %d", &a.id); gotoxy(22, 10); printf("Enter product name : "); scanf(" %s", a.name); gotoxy(22, 12); printf("Enter product quantity : "); scanf(" %d", &a.quantity); gotoxy(22, 14); printf("Enter product price : "); scanf(" %f", &a.price); gotoxy(22, 17); fprintf(fp, "%d %s %d %f\n\n", a.id, a.name, a.quantity, a.price); //SAVE TO TXT FILE LINE ! printf("Record saved!\n\n"); fclose(fp); gotoxy(22, 22); printf("Do you want to enter new product? Y / N : "); scanf(" %c", &checker); checker = toupper(checker); i++; system("cls"); } while (checker=='Y'); if (checker == 'N') { main(); } else { do { system("cls"); gotoxy(17, 5); printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2 SYZ INVENTORY PROGRAM \xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2"); gotoxy(17, 20); printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2"); gotoxy(18, 8); printf(">>> Wrong Input! Please Enter Y Or N Only! <<<"); gotoxy(19, 12); printf("Do You Want To Enter New Product? Y / N : "); scanf(" %c", &checker); checker = toupper(checker); } while (checker != 'Y' && checker != 'N'); if (checker == 'Y'){ addProduct(); } if (checker == 'N') { system("cls"); main(); } } return(0); } /*ADD PRODUCT LINE ENDS !*/ int displayProduct() { FILE *fp; struct product a; char true; system("cls"); fp = fopen("inventory.txt", "r"); gotoxy(17, 5); printf("\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2 SYZ INVENTORY PROGRAM \xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2"); gotoxy(5, 6); printf("======================================================================"); gotoxy(5, 7); printf("Product ID\t\t Product Name\t\t Quantity\t Unit Price\n"); //TABLE TITLES ! gotoxy(5, 8); printf("======================================================================"); gotoxy(5,10); while (fscanf(fp, "%d %s %d %f", &a.id, a.name, &a.quantity, &a.price) == 4) { printf("%d\t\t\t %s\t\t\t %d\t\t %.2f\n\n", a.id, a.name, a.quantity, a.price); //PRINT FROM TXT FILE TO COMMAND PROMPT. } fclose(fp); printf("\t\t \xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2\xB2"); printf("\nPress any key to return to Main Menu."); getch(); int main(); return (0); }
Write, Run & Share C Language code online using OneCompiler's C online compiler for free. It's one of the robust, feature-rich online compilers for C language, running the latest C version which is C18. Getting started with the OneCompiler's C editor is really simple and pretty fast. The editor shows sample boilerplate code when you choose language as 'C' and start coding!
OneCompiler's C online editor supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample C program which takes name as input and print your name with hello.
#include <stdio.h>
int main()
{
char name[50];
printf("Enter name:");
scanf("%s", name);
printf("Hello %s \n" , name );
return 0;
}
C language is one of the most popular general-purpose programming language developed by Dennis Ritchie at Bell laboratories for UNIX operating system. The initial release of C Language was in the year 1972. Most of the desktop operating systems are written in C Language.
When ever you want to perform a set of operations based on a condition if-else
is used.
if(conditional-expression) {
// code
} else {
// code
}
You can also use if-else for nested Ifs and if-else-if ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to if-else-if ladder.
switch(conditional-expression) {
case value1:
// code
break; // optional
case value2:
// code
break; // optional
...
default:
// code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition.
for(Initialization; Condition; Increment/decrement){
// code
}
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while(condition) {
// code
}
Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (condition);
Array is a collection of similar data which is stored in continuous memory addresses. Array values can be fetched using index. Index starts from 0 to size-1.
data-type array-name[size];
data-type array-name[size][size];
Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity.
Two types of functions are present in C
Library functions are the in-built functions which are declared in header files like printf(),scanf(),puts(),gets() etc.,
User defined functions are the ones which are written by the programmer based on the requirement.
return_type function_name(parameters);
function_name (parameters)
return_type function_name(parameters) {
//code
}