how to get user input in c

1#include <stdio.h>
2int main()
3{
4    char chr;
5    printf("Enter a character: ");
6    scanf("%c",&chr);     
7    printf("You entered %c.", chr);  
8    return 0;
9}   

1#include <stdio.h>
2int main()
3{
4    int testInteger;
5    printf("Enter an integer: ");
6    scanf("%d", &testInteger);  
7    printf("Number = %d",testInteger);
8    return 0;
9}

1#include <stdio.h>
2//this is for storing numbers
3int main(){
4	
5    int age; //this makes a vairable for you to store the value in
6    printf("enter in your age: "); //this prints a prompt for the user
7    scanf("%d", &age); //this takes in the argument given and stores it
8                       //into the address of age
9
10	return 0;
11}

1Integer: Input: scanf("%d", &intVariable); Output: printf("%d", intVariable);
2Float: Input: scanf("%f", &floatVariable); Output: printf("%f", floatVariable);
3Character: Input: scanf("%c", &charVariable); Output: printf("%c", charVariable);

1int c;
2printf( "Enter a value :");
3c = getchar( );

1#include <stdio.h>
2//this is for entering and storing strings
3int main(){
4    char name[20];
5
6    printf("Enter a name : ");
7    scanf("%s", &name);
8
9    printf("the name entered is: %s\n", name);
10
11
12
13return 0;
14}