Muhib_Codes
PF-PUCIT(NEW-CAMPUS)
ASSIGNMENT 01:
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Task 1. Write a program that displays size of int, float, double, char and bool data types, use sizeof() function.
/* This Program is used to display the size of different dataTypes
Key_point:
We use the function sizeof(dataTypes) :
*/
#include<iostream>
using namespace std;
int main()
{
cout<<"The size of Int_data_Type is "<<sizeof(int)<<" Bytes \n";
cout<<"The size of Float_data_Type is "<<sizeof(float)<<" Bytes \n";
cout<<"The size of Double_data_Type is "<<sizeof(double)<<" Bytes \n";
cout<<"The size of Char_data_Type is "<<sizeof(char)<<" Bytes \n";
cout<<"The size of Bool_data_Type is "<<sizeof(bool)<<" Bytes \n";
return 0;
}
Task 2. Write a program that compute area of a rectangle, whose height if 9m and width is 5m.Display its area.
/*This is a Program to display the area of arectangle
Key_point:
area=height*Width;
*/
#include<iostream>
using namespace std;
int main()
{
int height=9;
int width=5;
int area=0;//Intiliaze to zero to overwrite the garbage value
cout<<"Calculate the area of a rectangle:"<<endl;
cout<<"height=9m"<<endl;
cout<<"width=5m"<<endl;
area=height*width;
cout<<"The area of a rectangle = "<<area<<"m^2"<<endl;
return 0;
}
Task 3. Write a program that displays sum, subtractions, multiplication and division of two float numbers. Take any float numbers i.e. float f1 = 5.4, f2 = 7.8;
/*This is a program that dispaly the sum,subtraction ,multiplication and division
of the two "Float_numbers"*/
#include<iostream>
using namespace std;
int main()
{
float num1=5.4;
float num2=7.2;
float sum=0;//Initilaize to zero to overwrite the garbage values
float sub=0;
float multiplay=0;
double division=0;//Take is double because its a chance to get the point values greater than float range
cout<<"we have two numbers:"<<endl;
cout<<"Number_1=5.4 \n";
cout<<"Number_2=7.2 \n";
cout<<endl;
cout<<"The arthematic_operations on these floating point numbers:"<<endl;
cout<<endl;
//Araathematic Operations on it
sum=num1+num2;
sub=num1-num2;
multiplay=num1*num2;
division=num1/num2;
cout<<"The Addition of these two floating numbers = "<<sum<<endl;
cout<<"The Subtraction of these two floating numbers = "<<sub<<endl;
cout<<"The Multiplication of these two floating numbers = "<<multiplay<<endl;
cout<<"The division of these two floating numbers = "<<division<<endl;
return 0;
}
Task 4. Write reasons for errors in following codes:
int number = 10;
cout << number;
cout << number2;
int number2 = 50;
char ch = 'Programming Fundamental ';
cout << ch ;
/*
Errors in the code*/
#include<iostream>
using namespace std;
int main()
{
cout<<"we have a code as:"<<endl<<endl<<"int number = 10"
<<endl<<"cout << number;"<<endl<<"cout << number2;"<<endl
<<"int number2 = 50;"<<endl<<"char ch = 'Programming Fundamental;"
<<endl<<"cout << ch ;";
cout<<endl;
cout<<"The errors in the code are as follows;"<<endl<<endl;
cout<<endl;
cout<<"First ERROR:"<<endl;
cout<<"In the third line we cout the number2 first and decalre and initlize it later.Its scope is invalid because C++ compilers compile it line by line "<<endl
<<"The error is \" SCOPE_Invalid : a variable cannot be used in any part of the program before the definition\" "<<endl;
cout<<endl;
cout<<"Second_ERROR:"<<endl;
cout<<"IN fifth_line we initiliaze the char datatype with a string but char dataType has store only one ASCII character and size of its is only one bit"<<endl
<<"The error is \" Strings are consecutive sequences of characters that occupy consecutive bytes of memory \" "<<endl
<<"Characters normally occupy a single byte of memory:"<<endl;
cout<<endl;
return 0;
}
Task 5. Write a program that converts Fahrenheit temperature to Celsius temperature. Initialize a
variable with Fahrenheit temperature value i.e float Fahrenheit = 35; And convert it into Celsius
temperature. Hint: Celsius = (Fahrenheit - 32) * 5/9
Sample Output:
Temperature in Fahrenheit : 212
Temperature in Celsius : 100
/*This is program to display the Celsius to fanheit temparature
Key point:
celsius=(farnheit-32)*5/9;
*/
#include<iostream>
using namespace std;
int main()
{
double farnheit=212;
double celsius=0;//Intiliaze to zero to overwrite the garbage value
celsius=(farnheit-32)*5/9;//Parantesis are used to discarge the priority order of division
cout<<"The temperature in Farnheit = "<<farnheit<<endl;
cout<<"The temperature in Celsius = "<<celsius<<endl;
return 0;
}
Task 6. Write a program that swaps value of two integer. Display values before and after swapping.
Hint: Take help from third variable.
Sample Output:
Before Swapping:
Value of no1 = 5
Value of no2 = 10
After Swapping:
Value of no1 = 10
Value of no2 = 5
/*This is a program to Swap the values
key_Point:
{
int a,b,temp;
temp=a;
a=b;
b=temp;
}
*/
#include<iostream>
using namespace std;
int main()
{
int num1=5;
int num2=10;
int temp=0;//used the third variable for help
cout<<"The Numbers before swaping are written as:"<<endl;
cout<<"The number_1 = "<<num1<<endl;
cout<<"The number_2 = "<<num2<<endl;
cout<<endl;
//Now Swap the Values
temp=num1;
num1=num2;
num2=temp;
cout<<"The Numbers After swaping are written as:"<<endl;
cout<<"The number_1 = "<<num1<<endl;
cout<<"The number_2 = "<<num2<<endl;
cout<<endl;
return 0;
}
Task 7. Write a program that stores your name, rollno, age and degree in valid data type variables. And
displays in following format:
Hi, my name is ------- having roll number ------- and enrolled in -------. My age is -----
/*Program to display the Information
Key_point:
we use the string library and strimg dataType to store the stings*/
#include<iostream>
#include<string>
using namespace std;
int main()
{
//use the string dataType because we cannot store the more than one
//letter in char dataType so to store the complete string we use the string dataType in
//string libraray
string name="Muhib Arshad";
string roll_no="BSEF21M540";
string enrolled="FCIT(New_Campus) BSSE";
int age=19;
cout<<"My name is "<<name<<" having roll number "<<roll_no<<" and enrolled in "<<enrolled<<". My age is "<<age<<endl;
return 0;
}
Task 8. Write a program that displays average of three numbers. Hardcode values of variables
/*Program to display the Average of three variables*/
#include<iostream>
using namespace std;
int main()
{
int num1=5;
float num2=8.9;
double num3=9.888;
double average=0;//Intiliaze to zero to overwrite the garbage value
average=(num1+num2+num3)/3;//Parantesis are used to discarge the priority order of division
cout<<"Number 1 = "<<num1<<endl;
cout<<"Number 2 = "<<num2<<endl;
cout<<"Number 3 = "<<num3<<endl;
cout<<"The average of these three numbers = "<<average<<endl;
return 0;
}
Task 9. Write a program in which you store float value in int variable. Explain the output.
/*Program to check float in int*/
#include<iostream>
using namespace std;
int main()
{
int num1=7.98;
cout<<"The number_1 is equal to = "<<num1<<endl;
cout<<endl;
cout<<"Explanation:"<<endl;
cout<<"I store the varible in int as 7.98 in source code but in console answer is 7"<<endl
<<"Beacuse when we store the floating point variable in int dataType it ignores the values after the(.)"<<endl
<<"Integer dataType only stores the integer values without point values"<<endl
<<"To store the variable with the point_values we use the float dataType properly"<<endl;
return 0;
}
Task 10. Suppose an employee gets paid every month and earns 2000 each pay period. In a year the
employee gets paid 12 times. Write a program that defines the following variables:
payAmount; this variable will hold the amount of pay the employee earns each pay period.
payPeriods; this variable will hold the number of pay periods in a year.
annualPay; this variable will hold the employee’s total annual pay, which will be calculated.
Display the value of annualPay variable.
Hint: Employee’s total annual pay can be calculated by multiplying employee’s pay amount by number
of pay periods in a year
/*Program to display the anual_pay of user income */
#include<iostream>
using namespace std;
int main()
{
int pay_Amount=2000;
int pay_Periods=12;
int annual_Pay=0;//Intiliaze to zero to overwrite the garbage value
cout<<"The amount of pay the employee earns each pay period = "<<pay_Amount<<endl;
cout<<"The number of pay periods in a year = "<<pay_Periods<<endl;
annual_Pay=pay_Amount*pay_Periods;
cout<<"The employee\'s total annual pay, which will be calculated = "<<annual_Pay<<endl;
return 0;
}
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