Assignment 1

1.       Write correct C++ syntax & for each statement below:

a)    Initializing variable Pi with the value 3.14 (constant)

//variable Pi

Float Pi = 3.14

b)      Declare a variable named Parameter with double data type (declare variable)

//variable Parameter

Double Parameter = 9.212156867

c)       Give instruction that allowed user to input data (input)

Cout<<”Please Input Your Data Here”;

Cin >>data;

d)      Input number of computer using variable (input assign to variable value)

//variable noc=number of computer

Int noc;

2.    Solve the question below. Show the working.

a)    5 * 2 % 3 + 25 / 5

(5*2 % 3) + (25 /5)

1 + 5 = 6

b)    a = 5, b = 6
!((a < 3) && (a == 3) || (b > 9))

NOT((5 < 3) && (5 == 3) || (6 > 9))

NOT((0) && (0) || (0))

= 1

3.    Identify syntax errors in the following program.

include<iostream.h>
main()
{
float allowance = 300.00, salary, TSalary;
cout<<"Input Salary = ";
cin>>salary;
TSalary = salary + Allowance;
cout<<"Salary is= "<< TSalary;
}

4.    Write a program that will calculate the monthly salary for an employee that where Saturday and Sunday are considered as non-working days.

#include <iostream.h>

main()

{

      //declare

      float basic, payment, total ;

      //intput

      cout<<"Enter basic=";

      cin>>basic;

      cout<<"Enter payment=";

      cin>>payment;

      //process

      total= (payment*22)+basic;

      //output

      cout<<"Your salary="<< total;

      return 0;

 }

5.    Write a program that calculates the average of 5 numbers that can be input by user.

#include <iostream.h>
main()
{
//declare
int num1, num2, num3, num4, num5, average;
//input
cout<<"Enter 5 numbers=";
cin>>num1;
cin>>num2;
cin>>num3;
cin>>num4;
cin>>num5;
//process
average= (num1+num2+num3+num4+num5)/5;
//output
cout<<"Total average="<<average;
return 0;
}

6.    Write a program that will calculate the area of rectangular, triangle and circle.

Rectangular

#include <iostream.h>

Main()

{

//declare

Float h, w, area;

//input

Cout<<”Enter your height=”;

Cin>>h;

Cout<<”Enter your width=”;

Cin>>w;

//process

Area= h*w;

//output

Cout<<”Total of area=”;

Return 0;
}

Triangle

#include <iostream.h>

main()

{

      //declare

      float b,h, area;

      //input

      cout<<"Enter base=";

      cin>>b;

      cout<<"Enter height=";

      cin>>h;

      //process

      area= b*h*0.5;

      //output

      cout<<"Total area="<< area;

      return 0;

      }

Circle

#include <iostream.h>

main()

{

      //declare

      float r,pi=3.14, area;

      //input

      cout<<"Enter radius=";

      cin>> r;

      //process

      area= r*r*pi ;

      //output

      cout<<"Total area="<< area;

      return 0;

      }