#include <iostream>
#include <cstdlib>
#include <ctime>
#include <iomanip>
using namespace std;

const float TAX_RATE = .0675;
const float SHIP_RATE = 13.43;

int main()
{
 string name;
  float priceItem1 = 42.79;
  float priceItem2 = 33.95;
  float priceItem3 = 78.89;
  float priceItem4 = 29.25;
  float charge = 0, item1 = 0, item2 = 0, item3 = 0, item4 = 0, taxTotal = 0, total = 0;
  int qty1;
  int qty2;
  int qty3;
  int qty4;
  int totQty;
  int shipping;
  	cout.setf(ios::fixed);
    cout.setf(ios::showpoint);
   
    cout<<" Select quantity of item #1 "<<endl;
    cin>>qty1;
    cout << " # of Items: " <<qty1<<endl;
    item1 = qty1*priceItem1;
    cout << " Item #1 Total: $" <<setprecision(2)<<item1<<endl;
    
    	cout<< " " <<endl;
    
    cout<<" Select quantity of item #2 "<<endl;
    cin>>qty2;	
    cout << " # of Items: " <<qty2<<endl;
    item2 = qty2*priceItem2;
    cout << " Item #2 Total: $" <<setprecision(2)<<item2<<endl;
    
     	cout<< " " <<endl; 
     
    cout<<" Select quantity of item #3 "<<endl;
    cin>>qty3; 	
    cout << " # of Items: " <<qty3<<endl;
    item3 = qty3*priceItem3;
    cout << " Item #3 Total: $" <<setprecision(2)<<item3<<endl;
    
    	cout<< " " <<endl;
    
    cout<<" Select quantity of item #4 "<<endl;
    cin>>qty4;	
    cout << " # of Items: " <<qty4<<endl;
    item4 = qty4*priceItem4;
    cout << " Item #4 Total: $" <<setprecision(2)<<item4<<endl;
    
    	cout<< " " <<endl;
    
    totQty = qty1+qty2+qty3+qty4;
    cout<<" Total item Qty: "<<totQty<<endl;
	charge = item1 + item2 + item3 + item4;
    cout << " Total Spent: $" <<setprecision(2)<<charge<<endl;
    taxTotal = charge * TAX_RATE;
    cout << " Total tax amount: $" <<setprecision(2)<<taxTotal<<endl;
    shipping = (SHIP_RATE * totQty)*.435;
	cout << " Shipping Cost: $" <<shipping<<endl;
    total = taxTotal + charge + shipping;
  	cout << " Your total with tax: $" <<setprecision(2)<<total<<endl;

    return 0;
}

C++ Online Compiler

Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!

Read inputs from stdin

OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.

#include <iostream>
#include <string>
using namespace std;

int main() 
{
    string name;
    cout << "Enter name:";
    getline (cin, name);
    cout << "Hello " << name;
    return 0;
}

About C++

C++ is a widely used middle-level programming language.

  • Supports different platforms like Windows, various Linux flavours, MacOS etc
  • C++ supports OOPS concepts like Inheritance, Polymorphism, Encapsulation and Abstraction.
  • Case-sensitive
  • C++ is a compiler based language
  • C++ supports structured programming language
  • C++ provides alot of inbuilt functions and also supports dynamic memory allocation.
  • Like C, C++ also allows you to play with memory using Pointers.

Syntax help

Loops

1. If-Else:

When ever you want to perform a set of operations based on a condition If-Else is used.

if(conditional-expression) {
   //code
}
else {
   //code
}

You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.

2. Switch:

Switch is an alternative to If-Else-If ladder.

switch(conditional-expression){    
case value1:    
 // code    
 break;  // optional  
case value2:    
 // code    
 break;  // optional  
......    
    
default:     
 code to be executed when all the above cases are not matched;    
}

3. For:

For loop is used to iterate a set of statements based on a condition.

for(Initialization; Condition; Increment/decrement){  
  //code  
}

4. While:

While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.

while (condition) {  
// code 
}

5. Do-While:

Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.

do {  
 // code 
} while (condition);

Functions

Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.

How to declare a Function:

return_type function_name(parameters);

How to call a Function:

function_name (parameters)

How to define a Function:

return_type function_name(parameters) {  
 // code
}