If we have a lot of conditions it’s quite difficult to combine all of them using only if and else statements. For this reason, in C++ you can use the `switch` statement to define as many cases as you want. Use the following syntax:

```
switch (expression) {
    case a:
        // code expression is equal to a
        break;
    case b:
        // code expression is equal to b
        break;
}
```

We are evaluating here **expression** using `switch` statement. If expression is equal to one of the possible `cases` (`a` or `b`), we execute code in the correspending block. The keyword `break` at the end of case blocks means that when code in this block is executed we go out of the switch block.

> You can use as many `cases` as you want.

int weekendDay = 1;
switch (weekendDay) {
&nbsp;&nbsp;&nbsp;&nbsp;case 1:
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout << "It's Saturday";
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;
&nbsp;&nbsp;&nbsp;&nbsp;case 2:
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;cout << "It's Sunday";
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;break;
}

The code above prints the day of the weekend by its number. If it’s the first day (`1`) the code prints `"It's Saturday"`, if it’s the second day - `"It's Sunday"`.

> The keyword break is optional and we will describe it more later.

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In this section, you will learn the most important things about variables manipulations.

In this section, you will learn how booleans can help in creating programs behaving differently depending on some conditions.

In this section, you will learn how to write different loops in C++ to manipulate your data!

In this section, you will learn how the array works and how to apply loops to iterate through the array.

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Switch Statement

Let’s write a calculator which accepts variables a and b type of double, sign type of char, and makes calculations.