# 
## `If-else`

Let's learn how to use the `if-else` statement in Golang.

## Syntax
The syntax of the `if-else` statement is:

```go
if (condition) {
   // statements to run if the condition is true
} else {
   // statements to run if the condition is false
}
```

> **Note**: The braces around the condition are optional.

## Example

Let's consider the following example. We have an integer number and we compare it with another constant number, 5. In the `if` statement, we check to see if the number is greater than 5. The code in the `else` statement runs if it is `False`. Then, we click the "Run" button to see the code running. The `if` statement is `True` in the example given below.



> **Note**: Uncomment line 7 and comment line 6 to run the `else` code. 

package main // for standalone executables
import "fmt" // implements formatted I/O

func main() { 
   // Defining a variable
   var number int = 10;
   // var number int = 2;
 
   // Writing an "if-condition" to check if 
   // the number is greater than 5 
   if( number > 5 ) { 
      // Print the following if condition is true 
      fmt.Printf("The number is greater than 5\n" );
   } else {
      // Print the following if if-condition is false 
      fmt.Printf("The number is less than 5\n" );
   }
   // Print the value of number    
   fmt.Printf("The value of number is %d\n", number);
}

## Output

If the `number` is `10`, the output of the code will be:
```txt
The number is greater than 5
The value of number is 10
```

If the `number` equals to 2, then the output will be:
```txt
The number is less than 5
The value of number is 2
```




# 
## Test yourself

Use the `if-else` statement to check if a number is even or odd.


package main // for standalone executables
import "fmt" // implements formatted I/O

func main() { 
   // Your code
}

package main // for standalone executables
import "fmt" // implements formatted I/O

### Solution
The solution to the above problem is:
```go
func main() { 
   // Defining a variable
   var number int = 10;
 
   // Writing an "if-condition" to check if 
   // the number is even
   if( number%2 == 0 ) { 
      // Print the following if condition is true 
      fmt.Printf("The number is even\n");
   } else {
      // Print the following if if-condition is false 
      fmt.Printf("The number is odd\n");
   }
   // Print the value of number    
   fmt.Printf("The value of number: %d\n", number);
}
```


What is an if-else statement in Golang?

If-else in Golang compares conditions: executes code based on true or false results, as demonstrated with numbers.