Go BootCamp

breakandcontinue.go

package main

import "fmt"

func main() {
  pow := make([]int, 10)
  for i := range pow {
    pow[i] = 1 << uint(i)
    if pow[i] >= 16 {
        break
    }
  }
  fmt.Println(pow)
  // [1 2 4 8 16 0 0 0 0 0]

}

continue.go

package main

import (
	"fmt"
)

func main() {
	pow := make([]int, 10)
  for i := range pow {
    if i%2 == 0 {
      continue
    }
    pow[i] = 1 << uint(i)
  }
  fmt.Println(pow)
  //[0 2 0 8 0 32 0 128 0 512]
}
 

exerciseRange.go

/* Give a list of names, you need to organize each name within a slice based on its length */
package main

import (
	"fmt"
)

var names = []string{
	"Katrina", "Evan", "Neil", "Adam", "Martin", "Matt", "Emma", "Isabella", "Emily", "Madison",
	"Ava", "Olivia", "Sophie", "Abigail", "Elizabeth", "Chloe", "Samantha", "Addison", "Natalie", "Mia", "Alexis"}

func main() {
	var maxLen int
	for _, name := range names {
		if l := len(name); l > maxLen {
			maxLen = l
		}
	}
	output := make([][]string, maxLen)
	for _, name := range names {
		output[len(name)-1] = append(
			output[len(name)-1], name)
	}
	fmt.Printf("%v", output)
}
// [[] [] [Ava Mia] [Evan Neil Adam Matt Emma] [Emily Chloe] [Martin Olivia Sophie Alexis] [Katrina Madison Abigail Addison Natalie] [Isabella Samantha] [Elizabeth]]

gistfile1.txt

package main

import (
	"fmt"
)

func main() {
	celebs := map[string]int{
		"Nicolas Cage":       50,
		"Selena Gomes":       21,
		"Jude Law":           41,
		"Scarlett Johansson": 29,
	}

	fmt.Printf("%#v", celebs)
}

range.go

package main

import (
	"fmt"
)

func main() {
	pow := make([]int, 10)
	for i := range pow {
		pow[i] = 1 << uint(i)
	}
	for _, value := range pow {
		fmt.Printf("%d\n", value)
	}
}

range_response.txt

1
2
4
8
16
32
64
128
256
512

RangeandMaps.go

package main

import (
	"fmt"
)

func main() {
	cities := map[string]int{
		"New York":    8336697,
		"Los Angeles": 3857799,
		"Chicago":     2714856,
	}
	for key, value := range cities {
		fmt.Printf("%s has %d inhabitants\n", key, value)
	}
}
// Chicago has 2714856 inhabitants
// New York has 8336697 inhabitants
// Los Angeles has 3857799 inhabitants