tutorial2 - Constants Variables and Basic Data Types

Author: Shikha-code36

tutorial2-ConstantsVariablesBasicDataTypes/main.go

@@ -0,0 +1,88 @@
+package main
+
+import "fmt"
+import "unicode/utf8"
+
+func  main() {
+	var intNum int = 35
+	fmt.Println(intNum)
+
+	var floatNum float64 = 12345678.9
+	fmt.Println(floatNum)
+
+	var intNum1 int = 6
+	var intNum2 int = 2
+	fmt.Println(intNum1/intNum2)
+	fmt.Println(intNum1%intNum2)
+
+	var myString string = "RadhaRani"
+	fmt.Println(myString)
+
+	// we can use back quotes for new line of string or 
+	// we can use /n Radha /nRani 
+
+	var mys1 string = `Radha
+	Rani`
+	fmt.Println(mys1)
+
+	//we can also cancatenate string by adding them
+
+	var myStr string = "Hello" + " " + "World"
+	fmt.Println(myStr)
+
+	/* if we use len to check length of string it will give no of bytes not no of characters
+	since go uses UTF-8 encoding. Characters outside the ASCII characters set
+	are stored with more than a single byte.
+
+	getting length of a character se "S" it will give 1 but suppose we have special character like "γ"(gamma)
+	we will use built in package unicode/utf-8
+	*/
+
+	fmt.Println(utf8.RuneCountInString("γ"))
+	// O/P - 1
+
+	// rune is also a data type in GO
+
+	var myRune rune = 'a'
+	fmt.Println(myRune)
+
+	var myBoolean bool = false
+	fmt.Println(myBoolean)  
+
+	// var myVar = 'text'
+	myVar := "text"
+	fmt.Println(myVar)
+
+	// var var1, var2 int = 1, 2
+	var1, var2 := 1,2
+	fmt.Println(var1,var2)
+
+	const myConst string = "const value"
+	fmt.Println(myConst)
+
+	const pi float32 = 3.1415
+	fmt.Println(pi)
+}
+
+/*
+
+------ go run tutorial2/main.go
+
+O/P ---
+
+35
+1.23456789e+07
+3
+0
+RadhaRani
+Radha
+        Rani
+Hello World
+1
+97
+false
+text
+1 2
+const value
+3.1415
+*/