Section5.46

Section5/46.go

@@ -0,0 +1,70 @@
+/*
+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)
+}