Exemple #1
0
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)
}
Exemple #3
0
Fichier : main.go Projet : tajoy/gb
func main() {
	fmt.Println(flobble.Q)
	fmt.Prinln(moo.Q)
	fmt.Println(wuu.Q)
}