Fundamentals of Programming: jawapan exercises 1 tu..

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

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

const double Pi = 3.14;

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

double Parameter;

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

cout<<"input data";
cin>>data;

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

int num_compt;

cout<<"input number of computer";
cin>>num_compt;

2. Solve the question below. Show the working.

a) 5 * 2 % 3 + 25 / 5
   =10%3+25/5
   = 1+5
   = 6

b) a = 5, b = 6 !((a < a ="="> 9))
   !((5 < 5 ="="> 9))
   !(1 && 0 0 )
   !(00)
   !(0)
   1

3) Identify syntax errors in the following program.

include<iostream.h>
main()
{
float allowance = 300.00, salary;

cout<<"Input Salary = ";
cin>>salary;

TSalary = salary + Allowance;

cout<<"Salary is= "<< salary;
}

answer:

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

answer

#include<iostream.h>
main()
{
float salaryperhour,monthlysalary;
cout<<"enter salaryperhour=";
cin>>salaryperhour;
monthlysalary*salaryperhour;
cout<<"monthlysalary"<<salaryperhour;
return 0;
}

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

answer

#include<iostream.h>
main()
{
int number1, number2, number3, number4, number5, average;
cout<<"enter 5 numbers";
cin>>number1;
cin>>number2;
cin>>number3;
cin>>number4;
cin>>number5;
average= (number1+number2+number3+number4+number5)/5
cout<<"total average="<<average;
return 0;
}