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Computer Fundamental
Lab-
Instructions
- Use Turbo C\C++ for the following programs
- Create a folder CF_Labs
- Create new folder for each lab e.g. create folder “lab‐02” and save all the files in that folder for this lab
- Create new file for each of the following program
- For any help contact lab staff or faculty member available in the lab
- While leaving the lab close all programs and shutdown the computers, take a back up of your code
- Do not discard this handout
Objective Understand the working of different format specifiers, Learn to declare different variables, initialize them, use them, and print values using format specifiers.
For the following code, try to predict the output of the program, write it down on this handout, execute the program and then match the out of your program with your predicted output.
#include <conio.h> #include <stdio.h> void main(void) { clrscr(); printf("This is year %d\n",2011); printf("The sun will rise at %d:%d in the morning today \n",6,30); printf("If we multiply %d with %d the answer will be %d \n",12,3,36); printf("My friend %s came to visit me yesterday at %d-%d p.m.\n", "Ahmed",5,30); printf("\n\t%d\n\t%d+\n\t----\n\t%d",10,20,30); getch(); }
Your Predicted Output Line- Line- Line- Line- Line- Line- Line- Line-
TASK‐ (^01) Predict the output
Type the following programs and understand declaring, initializing and printing variables (only, int, char and float this itme) Program‐ 01 Simple declaration and initialization; #include <conio.h> #include <stdio.h> void main(void) { clrscr(); int A=100; int B=200; printf(“the value of A =%d\n “,A); printf(“The value of B = %d \n”,B); A=300; printf(“New value of A = %d\n”,A); printf(“Value of B = %d\n”,B); getche(); }
Program‐ 02 Other way of initialization and declaration #include <conio.h> #include <stdio.h> void main(void) { clrscr(); int A,B; int C,D=20;
A=100; B=200; C=A+B;
printf(“The value of A =%d\n “,A); printf(“The value of B = %d \n”,B); printf(“The value of C = %d\n”,C); printf(“The Value of D = %d\n”,D); getche(); } Program‐ 03 Using variables The objective of this program is to solve the equation (a+b) 2 = (a 2 +b^2 +2ab);
#include <conio.h> #include <stdio.h>
void main(void) { clrscr(); int a,b,c; int ans; a=12; b=9; printf(“ a =%d , b= %d \n“,a,b); ans=aa+bb+2ab; printf(“ (a+b)^2 = %d \n “,ans); getch(); }
Program‐ 03 Working with compound statement
The purpose of this program is to show the use of compound statement with variables
#include <conio.h> #include <stdio.h> void main(void) { clrscr(); int a,b,c; a=b=c=100; printf(“Starting value of a,b,c are\n“); printf(“a=%d,b=%d,c=%d\n“,a,b,c); a+=b; printf(“a+b = %d \n“,a); c=a=550; printf(“ New value of a b c are \n“); printf(“a=%d , b=%d , c=%d”,a,b,c); getch(); }
Program‐ 04 Increment and Decrement Operators The following program demonstrate use of increment and decrement operators we discussed in the class
TASK‐ (^02) Declaring ,Initializing and using Variables
