C Programming Tutorial - 1

Tutorial 1:

#define MYNAME "Chris Paul"

int globalVar = 100;

int main()

{

    /*

    char firstLetter = 'D';

    int age = 28;

    long int superInt = -327670000;

    double bitF = 3.123456789987654321;

    printf("This will print to screen\n\n");

    printf("I am %d years old\n\n", age);

    printf("SUper big int %ld\n\n", superInt);

    printf("Double = %.10f\n\n", bitF);

    printf("The first letter %c\n\n", firstLetter);

    printf("My name is %s\n\n", MYNAME);

    char myName[]="Chris Bosh";

    strcpy(myName, "Mario Chalmers");

    printf("Heat name is %s\n\n", myName);

    */

    /*

    char middle;

    printf("What is your middle?");

    scanf("%c", &middle);

    printf("Middle is %c", middle);

    char firstname[30], lastname[30];

    printf("What is your name?");

    scanf("%s %s", firstname, lastname);

    printf("Your name is %s %s\n\n", firstname, lastname);

    */

    int numx = 12;

    int numy = 14;

    printf("numx/numy : %f\n\n", (float)numx/numy);

    return 0;

}

Tutorial 2:

int main()

{

    /*

    int num1=1, num2=2;

    printf("Is 1>2=%d\n", num1>num2);

    int age=38;

    char *legalAge = (age>40)? "true": "false";

    printf("%s\n", legalAge);

    int num = 10;

    printf("I bought %s products \n\n", (num>1)? "many":"one");

    */

    /*

    int numhowbig;

    printf("How many bits?\n");

    scanf("%d", &numhowbig);

    printf("\n");

    int myincrementor = 1, mymultiplier = 1, finalvalue = 1;

    while(myincrementor < numhowbig){

        mymultiplier *=2;

        finalvalue = finalvalue + mymultiplier;

        myincrementor++;

    }

    if((numhowbig ==0) || (numhowbig ==1)){

        printf("Top value: %d\n\n", numhowbig);

    } else {

        printf("Top value %d\n\n", finalvalue);

    }

    */

    printf("\n");

    char sizeofShirt;

    do{

        printf("What size of shirt (S, M, L):\n");

        scanf("%c", &sizeofShirt);

    }while(sizeofShirt !='S' && sizeofShirt !='M' && sizeofShirt !='L');

    return 0;

}

Tutorial 3:

int globalVar = 0;

int add2Num(int a, int b){

    return a+b;

}

void changeVal(){

    int age = 10;

    globalVar =100;

    printf("Function dotor %d %d\n", age, globalVar);

}

int main()

{

    /* switch

    int whattodo;

    do{

        printf("\n");

        printf("1. What time is is?\n");

        printf("2. What is today date?\n");

        printf("3. What day is it?\n");

        printf("4. Quit\n");

        scanf(" %d", &whattodo);

    } while(whattodo<1 || whattodo>4);

    switch(whattodo){

        case(1) : printf("Print the time"); break;

        case(2) : printf("Print the date"); break;

        case(3) : printf("Print the day"); break;

        default: printf("Bye bye"); break;

    }

    */

    /* Array String

    int i;

    printf("\n");

    char wholename[12]="Derek Banas";

    int primeNum[3] = {2, 3, 5};

    int moreNum[] = {13, 15, 17, 19};

    printf("The first prime in the list is %d\n\n", primeNum[0]);

    char nextcity[] = "Paris";

    printf("%s", nextcity);

    char yourcity[30];

    printf("What city do you live?");

    //fgets(yourcity, 30, stdin);

    scanf("%s", yourcity);

    printf("Hello %s\n\n", yourcity);

    if(strcmp(nextcity, yourcity)==0)

    printf("Is your city Paris? %d\n", strcmp(nextcity, yourcity));

    char yourstate[] = ", Iowa";

    strcat(yourcity, yourstate);

    printf("Hello %s\n\n", yourcity);

    strcpy(yourcity, "Nalaikh, Ulaanbaatar");

    printf("Hello %s\n\n", yourcity);

    */

    int a = 50;

    globalVar = 11;

    printf("Anhnii utga: %d %d\n", a, globalVar);

    changeVal();

    printf("Function daraa %d %d\n", a, globalVar);

    return 0;

}

Tutorial 4:

void generateNum(int *rand1, int *rand2){
        *rand1 = rand()%50+1;
        *rand2 = rand()%50+1;
        printf("\nRand1: %d, Rand2: %d", *rand1, *rand2);
}
void editMess(char * message, int size){
    int i;
    char newMess[]="New message";
    if(size>sizeof(newMess)){
        for( i = 0; i<sizeof(newMess); i++){
            message[i]=newMess[i];
        }
    }
}
int main()
{
    /*
    int pNum[] = { 2, 3, 7 };
    printf("First index: %d\n",pNum[1]);
    printf("First index: %d\n", *(pNum+1));
    int i;
    char *students[4] = {"Sally", "Mark", "Paul", "Sue"};
    for( i = 0; i<4; i++)
        printf("%s: %d\n", students[i], &students[i]);
    */
    /*
    int rand1 = 0, rand2 = 0;
    generateNum(&rand1, &rand2);
    printf("\nRand1: %d, Rand2: %d", rand1, rand2);
    */
    char randMessage[] = "Edit my function";
    printf("Old Message: %s\n", randMessage);
    editMess(randMessage, sizeof(randMessage));
    printf("New message: %s\n", randMessage);
    return 0;

}

Tutorial 5-1:
struct dog{
    const char *name;
    const char *breed;
    int avgHeight;
    int avgWeight;
};
void getdogInfo(struct dog theDog){
    printf("\n");
    printf("Name: %s\n",theDog.name);
    printf("Breed: %s\n",theDog.breed);
    printf("Avg Height: %d\n",theDog.avgHeight);
    printf("Avg Weight: %d\n",theDog.avgWeight);
}
void getmemoryLocation(struct dog theDog){
    printf("\n");
    printf("Name Location: %d\n",theDog.name);
    printf("Breed Location: %d\n",theDog.breed);
    printf("Avg Height Location: %d\n",&theDog.avgHeight);
    printf("Avg Weight Location: %d\n",&theDog.avgWeight);
}
int main()
{
    struct dog cojo = {"Cujo", "Saint Bernard", 90, 264};
    getdogInfo(cojo);
    getmemoryLocation(cojo);
    return 0;

}
Tutorial 5-2:
struct dogFavs{
    char *food;
    char *frient;
};
typedef struct dog{
    const char* name;
    const char* breed;
    int avgHeight;
    int avgWeight;
    struct dogFavs favThings;

}dog;
void getdogFavs(dog theDog){
    printf("\n");
    printf("%s loves %s and his friend is %s\n\n", theDog.name, theDog.favThings.food,  theDog.favThings.frient);
}
void setdogWeight(dog *theDog, int newWeight){
    (*theDog).avgWeight = newWeight;
    printf("The weight was changed to %d\n\n", theDog->avgWeight);
}
int main()
{
    dog benji = {"Benji", "Silky Terrier", 25, 9, {"Meat", "Joe Camp"}};
    getdogFavs(benji);
    setdogWeight(&benji, 15);
    printf("The Weight in Main() %d\n", benji.avgWeight);
    return 0;

}