HF-Intro

Question 1

Go file structure ?

Answer 1

Package declaration
Import statement

<rest>
</rest>

Question 2

Do we need “semicolon” to end statements in Go-Lang?

Answer 2

No

Question 3

Can we format the Go-code into a good looking form?

Answer 3

gofmt

Question 4

What is “fmt.Println()”?

Answer 4

• Provided by “fmt” package // “fmt” means “format”
• Prints/outputs message to terminal
  Can be used with single or multiple arguments
• If multiple arguments are provided, then they all be printed with “space”
• Provide a “line” at the end

Question 5

How sharing of code from one package to another package works ?

Answer 5

This is done by “import” statement. Once imported, all functions belongs to a particular package can be used inside the other package.

Question 6

Can we combine multiple import statement….as generally we will have more than one import statement ?

Answer 6

Yes, Just take out the common keyword “import” and provide every import in a new line:
»> import (
»> “fmt”
»> “strings”
»> “math”
»> )

Question 7

Casing convention for “package” and Functions” ?

Answer 7

• All package names must be starting with “lower-case” letter
• All Function names must be starting with “upper-case” letter

Question 8

How Strings are represented in Go and how can we include Newline, Tab, double quote and backward slash?

Answer 8

• Strings are represented by “double quote” only
• New line - “\n”
• Tab - “\n”
• Double quote - “\””
• Backward slash - “\”

Question 9

How characters are represented in Go-lang? What are runes?

Answer 9

In go-lang, character values are represented in single quote ‘A’, ‘B’, ‘C’.
These character values are also known as “runes”.