Instead of repeating the same code five times (CODE BELOW), you can use a loop to reduce the code length. Modify the program to use a for loop to ask the user for a character. Use an input function such as getchar() to input the character. You should display a menu to the user such as Menu: d,y,m,t each time the user is supposed to input a character.

Note: 1) for loops are supported in the C99 standard, so you must use the -std=c99 flag in your gcc command to compile a program using a for loop. Also note that C99 supports different functions, so some of your functions may need to be updated to a supported version. 2) You may need to call getchar() and then getc() to flush the newline character left behind by the previous getchar();

CODE:

/* This C program demonstrates the switch statement without using breaks. */

/* The program is tested with GCC and MS Visual C++ platform */

#include

void main() {

int date = 29;

int year = 2018;

int month = 1;

float time = 02.30; // For example: 10.45 So 2 digits for hours, 2 digit for minutes

char ch;

ch = 'd';

printf("ch = %c ", ch);

switch (ch) {

case 'd': printf("Date : %d ", date); break;

case 'y': printf("Year : %d ", year); break;

case 'm': printf("Month : %d ", month); break;

case 't': printf("Time : %02.2f ", time); break;

default: printf("invalid operator ");

}

ch = 'y';

printf("ch = %c ", ch);

switch (ch) {

case 'd': printf("Date : %d ", date); break;

case 'y': printf("Year : %d ", year); break;

case 'm': printf("Month : %d ", month); break;

case 't': printf("Time : %02.2f ", time); break;

default: printf("invalid operator ");

}

ch = 'm';

printf("ch = %c ", ch);

switch (ch) {

case 'd': printf("Date : %d ", date); break;

case 'y': printf("Year : %d ", year); break;

case 'm': printf("Month : %d ", month); break;

case 't': printf("Time : %02.2f ", time); break;

default: printf("invalid operator ");

}

ch = 't';

printf("ch = %c ", ch);

switch (ch) {

case 'd': printf("Date : %d ", date); break;

case 'y': printf("Year : %d ", year); break;

case 'm': printf("Month : %d ", month); break;

case 't': printf("Time : %02.2f ", time); break;

default: printf("invalid operator ");

}

ch = 'D';

printf("ch = %c ", ch);

switch (ch) {

case 'd': printf("Date : %d ", date); break;

case 'y': printf("Year : %d ", year); break;

case 'm': printf("Month : %d ", month); break;

case 't': printf("Time : %02.2f ", time); break;

default: printf("invalid operator ");

}

}