func main() {
for i := 0; i <= 100; i++ {
if i%15 == 0 {
fmt.Prinln(i, " -- FizzBuzz")
} else if i%3 == 0 {
fmt.Println(i, " -- Fizz")
} else if i%5 == 0 {
fmt.Println(i, " -- Buzz")
} else {
fmt.println(i)
}
}
}
func main() {
fmt.Println("Hello World") //Hello World
var age int = 40
var favNum float64 = 1.6180339
fmt.Println(age, favNum) //40 1.6180339
var numOne = 1.000
var num99 = 0.9999
fmt.Println(numOne - num99) //9.999999999998899e-05
fmt.Println("6 + 4 =", 6+4) //6 + 4 = 10
fmt.Println("6 - 4 =", 6-4) //6 - 4 = 2
fmt.Println("6 * 4 =", 6*4) //6 * 4 = 24
fmt.Println("6 / 4 =", 6/4) //6 / 4 = 1
fmt.Println("6 % 4 =", 6%4) //6 % 4 = 2
var myName string = "Derek Banas"
fmt.Println(len(myName)) //11
fmt.Println(myName + " is a robot") //Derek Banas is a robot
fmt.Println("\n")
fmt.Println("My name is Anjana Rajagopal \n I like tacos very much \n \n") //My name is Anjana Rajagopal
//I like tacos very much
const pi float64 = 3.14159265
fmt.Printf("%.3f \n", pi) //3.142 - %.3f returns the float and rounds it to 3 decimal places
fmt.Printf("%T \n", pi) //float64 - %T returns the type of the value
var isOver40 bool = true
fmt.Printf("%t \n", isOver40) //true - %t returns the word true or false
fmt.Printf("%d \n", 100) //100 - %d returns base 10 (integer itself)
fmt.Printf("%b \n", 100) //1100100 - %b returns base 2 (binary)
fmt.Printf("%c \n", 44) //, - %c returns the character represented by the corresponding Unicode code
fmt.Printf("%x \n", 17) //11 - %x returns base 16 with lower-case letters for a-f
fmt.Printf("%e \n", pi) //3.141593e+00 - %e returns number in scientific notation
fmt.Println("true && false = ", true && false) // true && false = false
fmt.Println("true || false = ", true || false) // true || false = true
fmt.Println("!true = ", !true) //!true = false
fmt.Println("!false = ", !false) //!false = true
fmt.Println("\n")
i := 1
for i <= 10 {
fmt.Println(i) //Prints nums 1-10
i++
//1
//2
//3
//4
//5
//6
//7
//8
//9
//10
}
fmt.Println("\n")
for j := 0; j < 5; j++ { //Prints nums 0-4
fmt.Println(j)
//0
//1
//2
//3
//4
}
fmt.Println("\n")
yourAge := 18
if yourAge >= 16 { //You Can Drive
fmt.Println("You Can Drive")
} else {
fmt.Println("You Can't Drive")
}
if yourAge >= 16 { //You Can Drive
fmt.Println("You Can Drive")
} else if yourAge >= 18 {
fmt.Println("You Can Vote")
} else {
fmt.Println("You Can Have Fun")
}
yourAge_2 := 5
switch yourAge_2 {
case 16:
fmt.Println("Go Drive")
case 18:
fmt.Println("Go Vote")
default:
fmt.Println("Go Have Fun")
}
fmt.Println("\n")
var favNums2 [5]float64
favNums2[0] = 163
favNums2[1] = 78557
favNums2[2] = 691
favNums2[3] = 3.141
favNums2[4] = 1.618
fmt.Println(favNums2[3]) //3.141
favNums3 := [5]float64{1, 2, 3, 4, 5}
for i, value := range favNums3 {
fmt.Println(value, i)
//1 0
//2 1
//3 2
//4 3
//5 4
}
fmt.Println("\n")
numSlice := []int{5, 4, 3, 2, 1} //numSlice = {5, 4, 3, 2, 1}
numSlice2 := numSlice[3:5] //numSlice2 = {2, 1}
fmt.Println("numSlice2[0] =", numSlice2[0]) //numSlice2[0] = 2
fmt.Println("numSlice2[1] =", numSlice2[1]) //numSlice2[1] = 1
numSlice3 := make([]int, 5, 10) //has room for 10 elements
copy(numSlice3, numSlice)
fmt.Println(numSlice3[0]) //5
numSlice3 = append(numSlice3, 0, -1)
fmt.Println(numSlice3[6]) //-1
fmt.Println("\n")
presAge := make(map[string]int)
presAge["TheodoreRoosevelt"] = 42
fmt.Println(presAge["TheodoreRoosevelt"]) //42
fmt.Println(len(presAge)) //1
presAge["John F. Kennedy"] = 43
fmt.Println(len(presAge)) //2
delete(presAge, "John F. Kennedy")
fmt.Println(len(presAge)) // 1
fmt.Println("\n")
listNums := []float64{1, 2, 3, 4, 5}
fmt.Println("Sum :", addThemUp(listNums)) //Sum : 15
fmt.Println("\n")
num1, num2 := next2Values(5)
fmt.Println(num1, num2) //6 7
fmt.Println("\n")
fmt.Println(subtractThem(1, 2, 3, 4, 5)) //-15
fmt.Println("\n")
num3 := 3
doubleNum := func() int {
num3 *= 2
return num3
}
fmt.Println(doubleNum()) //6
fmt.Println(doubleNum()) //12
fmt.Println("\n")
fmt.Println(factorial(3)) //6
fmt.Println("\n")
defer printTwo() // 2
printOne() // 1
fmt.Println("\n")
fmt.Println(safeDiv(3, 0)) // 0
fmt.Println(safeDiv(3, 2)) //1
fmt.Println("\n")
demPanic()
fmt.Println("\n")
x := 0
changeXVal(x)
//x = 2
//Memory Address for x = 0x1026804o...
fmt.Println("x =", x)
fmt.Println("Memory Address for x =", &x)
fmt.Println("\n")
yPtr := new(int)
changeYValNow(yPtr)
fmt.Println("y =", *yPtr) //y = 100
fmt.Println("\n")
rect1 := Rectangle{0, 50, 10, 10}
fmt.Println("Rectangle is", rect1.width, "wide") //Rectangle is 10 wide
fmt.Println("Area of rectangle =", rect1.area()) //Area of rectangle = 100
fmt.Println("\n")
rect := Rectangle{20, 50}
circ := Circle{4}
fmt.Println("Rectangle Area =", getArea(rect)) //Rectangle Area = 1000
fmt.Println("Circle Area =", getArea(circ)) //Circle Area = 50.26548245743669
fmt.Println("\n")
sampString := "Hello World"
fmt.Prinln(string.Contains(sampString, "lo")) //true
fmt.Prinln(string.Index(sampString, "lo")) //3
fmt.Prinln(string.Count(sampString, "l")) //3
fmt.Prinln(string.Replace(sampString, "l", "x", 3)) //Hexxo Worxd
fmt.Println("\n")
csvString := "1, 2, 3, 4, 5, 6"
fmt.Println(strings.Split(csvString, ",")) //[1 2 3 4 5 6]
listOfLetters := []string{"c", "a", "b"}
sort.Strings(listOfLetters)
fmt.Println("Letters: ", listOfLetters) //Letters: [a b c]
listOfNums := strings.Join([]string{"3", "2", "1"}, ", ")
fmt.Println(listOfNums) //3, 2, 1
fmt.Println("\n")
file, err := os.Create("samp.txt")
if err != nil {
log.Fatal(err)
}
file.WriteString("This is some random text")
file.Close()
stream, er := ioutil.ReadFile("samp.txt")
if err != nil {
log.Fatal(err)
}
readString := string(stream)
fmt.Println(readString) //This is some random text
fmt.Println("\n")
randInt := 5
randFloat := 10.5
randString := "100"
randString2 := "250.5"
fmt.Println(float64(randInt)) //5
fmt.Println(int(randFloat)) //10
newInt, _ := strconv.ParseInt(randString, 0, 64)
fmt.Println(newInt) //100
newFloat, _ := strconv.ParseFloat(randString2, 64)
fmt.Println(newFloat) //250.5
fmt.Println("\n")
http.HandleFunc("/", handler)
http.HandleFunc("/earth", handler2)
http.ListenAndServe(":8080", nil)
//0 : 0
//1 : 0
//2 : 0
//3 : 0
//4 : 0
//5 : 0
//6 : 0
//7 : 0
//8 : 0
//9 : 0
//0 : 1
//1 : 1
//2 : 1
//3 : 1
//4 : 1
//5 : 1
//6 : 1
//7 : 1
//8 : 1
//9 : 1
//...
//8 : 9
//9 : 9
//1 : 9
for i := 0; i < 10; i++ {
go count(i)
}
time.Sleep(time.Millisecond * 11000)
}