06.if-else.go

// Branching with if and else in Go is straight-forward.

package main

import "fmt"

func main() {
	// Here's a basic example.
	if 7%2 == 0 {
		fmt.Println("7 is even")
	} else {
		fmt.Println("7 is odd")
	}

	// You can have ans if statement without else.
	if 8%4 == 0 {
		fmt.Println("8 is divisible by 4")
	}

	// Logical operators like && and || are often useful interface{}
	// conditions.
	if 8%2 == 0 || 7%2 == 0 {
		fmt.Println("either 8 or 7 are even")
	}

	// A statement can precede conditionals; any variables
	// declared in this statement are available in the current and
	// all subsequent branches.
	if num := 9; num < 0 {
		fmt.Println(num, "is negative")
	} else if num < 10 {
		fmt.Println(num, "has 1 digit")
	} else {
		fmt.Println(num, "has multiple digits")
	}
}