Menu in c programming
In these programs, you will learn how to work the Menu system in c programming menu system, with step by step examples for a menu in c programming using a combination of Array and Function.
Menu driven program in c using Functions
#define COLS 10;
#define ROW 20;
#include <stdio.h>
#include <string.h>
#include <math.h>void printMenu()
{
printf(“Hello!!!!!!\n”);
printf(“===========\n”);
printf(“Please choose from the menu:\n”);
printf(“Enter – enter matrix\n”);
printf(“Print – print matrix\n”);
printf(“Rotate – rotate matrix\n”);
printf(“Exit – exit the program\n”);}
void toLower(char str[]) {
for (int i = 0; i < 20; i++) {
if (str[i] >= ‘A’ && str[i] <= ‘Z’) str[i] += 32;
}
}int getInput(char str[]) { //the new function
// gets_s(str,20);
toLower(str);scanf(“%s”,str); // try this function if gets_s is not working for u scanf_s(“%s”,str,20); try like this
//toLower(str);}
int main()
{
char str[20];
int isExit=0;do
{
printMenu();
getInput(str);if(strcmp(str,”exit”)==0)
isExit=1;
}
while(isExit!=1) ;return 0;
}
Menu driven program in c using Array
The user chose from the menu by the first word of the option (print, rotate…) and he can write it with a lowercase letter or uppercase. “to lower” function take the string the user wrote and turns every latter to lowercase. after i have only a lowercase string i need to check what the user chose with the function “getInput”. this function should return a different value for every choice from the menu. if the word given wasn’t from the menu it should “say” it and print the menu again Menu in c programming
#define COLS 10;
#define ROW 20;
#include <stdio.h>
#include <string.h>
#include <math.h>
char options[][20]={“enter”,”print”,”rotate”,”exit”};
void printMenu() {
printf(“Hello!!!!!!\n”);
printf(“===========\n”);
printf(“Please choose from the menu:\n”);
printf(“Enter – enter matrix\n”);
printf(“Print – print matrix\n”);
printf(“Rotate – rotate matrix\n”);
printf(“Exit – exit the program\n”);
}
void toLower(char str[]) {
for (int i = 0; i < 20; i++) {
if (str[i] >= ‘A’ && str[i] <= ‘Z’) str[i] += 32;
}
}
int getInput(char str[]) { //the new function
//gets_s(str,20);
//toLower(str);
scanf(“%s”,str); // try this function if gets_s is not working for u scanf_s(“%s”,str,20);
toLower(str);
int i=0;
int index=-1;
for(i=0;i<4;i++){
if(strcmp(options[i],str)==0){
index=i;
break;
// printf(“%s\n”,options[i]);
}
}
return index;
}
int main()
{
char str[20];
int isExit=0;
do
{
printMenu();
switch(getInput(str)){
case 3:
isExit=1;
break;
}
}
while(isExit!=1) ;
return 0;
}
Menu in C programming
C program to draw a square using graphics (clickHere)
Note:- Maybe sometime above code doesn’t get user-friendly output, in codeblock ‘or’ any other EDITOR, All of C & C++ program tested in DOS compiler Turbo C.
Also Read
Types of functions in C Read Here
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