Learn How to Program in C

by
Dr. Kristin Switala

Introduction

Directives

Variables

Conditionals

Loops

Arrays

Pointers

Strings

Functions

Structures


Site Map

Review: Variables (a)

Instructions: Think about each question and write the answer in your notebook.

General Questions

1. Which of these numbers is an integer variable? 5.4, 9.7888, 432, or 32 5/8

2. You can store any number from -32,768 to +32,768 if your computer stores integers in how many bytes of memory?

3. What is the format specifier for integers?

4. What function do we use to assign a variable to viewer input?

5. What symbol do we use to assign a variable?

Integer Variables

1. Fix the errors in this C source code. There are 4 errors.

include <stdio.c>
void main( )
{
int year = 1948;
printf("\nThe UN adopted the Universal Declaration of Human Rights in %d.\n", year)

2. Fix the errors in this C source code. There are 3 errors.

#include <stdio.h>
void ( )
int articles = 30;
printf("\nThe Universal Declaration of Human Rights contains %d Articles.\n", parts);
}

3. Fix the errors in this C source code. There are 2 errors.

#include <stdin.h>
void main
{
int year = 1920;
printf("\nIn %d the 19th Amendment was ratified, granting women the right to vote.\n", year);
}

4. Fix the errors in this C source code. There are 3 errors.

#include <stdio.h>
void main( )
{
int year = 1960;
print("\nNigeria achieved independence in %i.\n", date);
}

Working with Viewer Input

1. Fix the errors in this C source code. There are 4 errors.

#include <stdio.h>
void main( )
{
printf("\nHow old are you? ");
scan("%d", age);
printf("\nYou are % years old.\n", age);
}

2. Fix the errors in this C source code. There are three errors.

#include <stdio.h>
void main( )
{
int sisters;
printf("\nHow many sisters do you have?);
scanf("d", &sisters);
printf("\nYou have %d sisters.\n");
}

Arithmetic Operators

1. Fix the errors in this C source code. There are 2 errors.

#include <stdio.h>
void main( )
{
int current;
int time;
printf("\nWhat is the current year? ");
scanf("%d", &current);
time = year - 1957;
printf("\nThe West African nation of Gambia acheived independence %d years ago.", time)
}

2. Fix the errors in this C source code. There are 3 errors.

#include <stdio.h>
void main( )
{
int beginning = 1403;
int end = 1911;
int emperors = 24;
printf("\n24 emperors ruled China from the Forbidden City between %d and %d.", beginning);
average = (end - begin) / emperors;
printf("\nEmperors ruled for an average of %d years.", average);
}
Copyright
© 2001
Kristin Switala
Hosted by www.Geocities.ws

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