End of day

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

main.go

@@ -2,6 +2,105 @@ package main
 
 import "fmt"
 
+var globalVariable = "this is a global variable"
+
 func main() {
-	fmt.Println("kajshdf")
+	dataTypesExamples()
+
+	printingExamples()
+}
+
+func printingExamples() {
+	age := 69
+	name := "Joe"
+
+	//Print
+	fmt.Print("hello, ")   // does NOT add a new line
+	fmt.Print("world! \n") // add new line manually
+	fmt.Print("new line \n")
+
+	//Println
+	fmt.Println("Hello on one line!") // automatically adds new line
+	fmt.Println("Good bye on one line!")
+
+	//Passing multiple values
+	fmt.Println("My age is", age, "and my name is", name)
+
+	//Printf (formatted strings) %_ = format specifier - List of specifiers https://pkg.go.dev/fmt
+	// Does NOT add a new line like fmt.Print()
+	fmt.Printf("my age is %v and my name is %v \n", age, name) // %v takes any type of variables in the order they are provided
+	fmt.Printf("My age is %q and my name is %q \n", age, name) // %q adds quotes around the variables in the order they are provided, must be strings!
+	fmt.Printf("age is of type %T \n", age)                    // %T gets the type of the first variable passed after string to be printed
+	fmt.Printf("You scored %f points! \n", 225.55)             // %f passes a float value passed
+	fmt.Printf("You scored %0.1f points! \n", 225.55)          // %X.Xf rounds the passed float to the specified length
+
+	// Sprintf (saved formatted strings)
+	var sprintfVar = fmt.Sprintf("My age is %v and my name is %v \n", age, name)
+	fmt.Println("The saved string is:", sprintfVar)
+}
+
+func dataTypesExamples() {
+
+	// Date Types Doc https://go.dev/ref/spec#Types
+
+	fmt.Println("-------------------------STRINGS-------------------------")
+	// String docs https://go.dev/ref/spec#String_types
+
+	// Three ways to initialize a variable
+	var nameOne string = "mario"
+	var nameTwo = "luigi"
+	var nameThree string
+
+	fmt.Println(nameOne)
+	fmt.Println(nameTwo)
+	fmt.Println(nameThree)
+	fmt.Println("All three: ", nameOne, nameTwo, nameThree)
+
+	nameOne = "peach"
+	nameThree = "bowser"
+	fmt.Println(nameOne, nameTwo)
+
+	// Shorthand for variable initialization
+	nameFour := "yoshi"
+	fmt.Println(nameFour)
+
+	// Numeric data types doc https://go.dev/ref/spec#Numeric_types
+
+	fmt.Println("-------------------------INTS-------------------------")
+
+	// ints
+	var ageOne int = 20
+	var ageTwo = 30
+	ageThree := 40
+
+	fmt.Println(ageOne, ageTwo, ageThree)
+
+	// bits & memory
+
+	// signed (positive and negative)
+	var numOne int8 = 25           // -128 to 127
+	var numTwo int16 = 35          // -32768 to 32767 (-32,768 to 32,767)
+	var numThree int32 = 45        // -2147483648 to 2147483647 (-2,147,483,648 to 2,147,483,647)
+	var numThreeAndAHalf rune = 45 // rune is the same as int32
+	var numFour int64 = 55         // -9223372036854775808 to 9223372036854775807 (-9,223,372,036,854,775,808 to 9,223,372,036,854,775,807)
+
+	fmt.Println(numOne, numTwo, numThree, numThreeAndAHalf, numFour)
+
+	// unsigned (all positive)
+	var posNumOne uint8 = 65    // 0 to 255
+	var posNumTwo uint16 = 75   // 0 to 65535 (65,535)
+	var posNumThree uint32 = 85 // 0 to 4294967295 (4,294,967,295)
+	var posNumFour uint64 = 95  // 0 to 18446744073709551615 (18,446,744,073,709,551,615)
+
+	fmt.Println(posNumOne, posNumTwo, posNumThree, posNumFour)
+
+	fmt.Println("-------------------------FLOATS-------------------------")
+
+	// decimal values default to float64
+	var floatOne float32 = 25.98
+	var floatTwo float64 = 9843216984654.68432168454651968
+	floatThree := 6854324.6854654
+
+	fmt.Println(floatOne, floatTwo, floatThree)
+
 }