/*
Coding Exercise #1

Using the const keyword declare and initialize the following constants:

1. daysWeek with value 7

2. lightSpeed with value 299792458

3. pi with value 3.14159

Run the program without errors.

package main

func main() {
		const daysWeek   = 7
		const lightSpeed = 299792458
		const pi         = 3.14159

}
*/

/*
Coding Exercise #2

Change the code from the previous exercise and declare all 3 constants as grouped constants.

Make them untyped.

func main() {
	const (
		daysWeek   = 7
		lightSpeed = 299792458
		pi         = 3.14159
	)

}
*/

/*
Coding Exercise #3

 Calculate how many seconds are in a year.

 STEPS:

 1. Declare secPerDay constant and initialize it to the number of seconds in a day

 2. Declare daysYear constant and initialize it to 365

 3. Use fmt.Printf() to print out the total number of seconds in a year.

EXPECTED OUTPUT:

There are 31536000 seconds in a year.

package main

import "fmt"

func main() {
	const (
		daysYear    = 365
		hoursDay    = 24
		secondsHour = 3600
	)
	var result = daysYear * hoursDay * secondsHour
	fmt.Printf("Seconds in a Year %d\n", result)
}
*/

/*
Coding Exercise #4

There are an error in the following Go program. Try to identify the error, change the code and run the program without errors.

    package main

    func main() {
        const x int = 10

        // declaring a constant of type slice int ([]int)
        const m = []int{1: 3, 4: 5, 6: 8}
        _ = m
    }

package main

func main() {
	const x int = 10

	// declaring a constant of type slice int ([]int)
	// const m = []int{1: 3, 4: 5, 6: 8}
	// You cannot declare a slice constant
	// _ = m
}

*/

/*
Coding Exercise #5

There are some errors in the following Go program. Try to identify the errors, change the code and run the program without errors.

    package main

    import "math"

    func main() {
    	const a int = 7
    	const b float64 = 5.6
    	const c = a * b

    	x := 8
    	const xc int = x

    	const noIPv6 = math.Pow(2, 128)
    }

package main

// import "math"

func main() {
	const a int = 7
	const b float64 = 5.6
	const c = float64(a) * b

	x := 8
	_ = x

	// const xc int = x

	// const noIPv6 = math.Pow(2, 128)
}
*/

/*
Coding Exercise #6

Using Iota declare the following months of the year: Jun, Jul and Aug

Jun, Jul and Aug are constant and their value is 6, 7 and 8.
*/
package main

import "fmt"

func main() {
	const (
		Jun = iota + 6
		Jul
		Aug
	)
	fmt.Println(Jun, Jul, Aug)
}