Understanding Statements in Go
Programs are built from statements — individual instructions that tell your computer what to do, one step at a time.
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What Is a Statement?
A statement is simply one complete instruction in your program. When you write fmt.Println("Hello"), that's a statement. When you write x := 5, that's a statement too. Your entire program is just a sequence of statements executed one after another, top to bottom.
Types of Statements You'll See
Assignment Statements
These store values into variables:
name := "Bits Bytes" // short declaration + assignment
age = 30 // simple assignmentExpression Statements
These call a function or evaluate something:
fmt.Println("Learning Go!")
time.Sleep(2 * time.Second)Return Statements
These send a value back from a function:
func add(a int, b int) int {
return a + b
}You'll learn more about functions in lessons 08 and 09, but for now just know that return is how a function hands its result back to whoever called it.
One nice thing about Go: You don't need semicolons at the end of lines. Go adds them automatically during compilation. One less thing to worry about.
Blocks — Grouping Statements Together
Curly braces { } group statements into blocks. Every function body is a block. Every if-else body is a block. This keeps your code organized and tells Go which statements belong together:
func main() {
// This entire block runs when your program starts
greeting := "Welcome!"
fmt.Println(greeting)
}The key idea: statements run in order, and blocks define scope — meaning variables created inside a block only exist within that block.
Try It Yourself
Write a small program with at least 5 different statements: declare two variables, print them, change one of them, and print again. Notice how each line is an instruction that Go follows in sequence.