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Go programming Language if else
Go Programming Language if else
if else is one of the approach to build the decision in go programming.
Syntax:
If condition {
//task
} else {
// another task
}
here condition can be obtained by logical or comparison operations.
package main
import "fmt"
func main() {
// declare variables
var a, b int
// assign variables
a = 10
b = 6
fmt.Println("Compares a and b variables")
if a>b {
fmt.Printf("%d is greater than or equal to %d!\n", a, b)
} else{
fmt.Printf("%d is less than %d!\n", a, b)
}
}
Output:
$ go build if-else.go $ ./if-else Compares a and b variables 10 is greater than or equal to 6!
Starting else block in new line raises build error in Go programming
Example:
package main
import "fmt"
func main() {
// declare variables
var a, b int
// assign variables
a = 10
b = 6
fmt.Println("Compares a and b variables")
if a>b {
fmt.Printf("%d is greater than or equal to %d!\n", a, b)
}
else{
fmt.Printf("%d is less than %d!\n", a, b)
}
}
Build error
$ go build if-else.go # command-line-arguments ./if-else.go:18: syntax error: unexpected else, expecting }
Go programming else if
package main
import "fmt"
func main() {
// declare variables
var a, b int
// assign variables
a = 10
b = 6
fmt.Println("Compares a and b variables")
if a==b {
fmt.Printf("%d is equal to %d!\n", a, b)
} else if a>b{
fmt.Printf("%d is greater than %d!\n", a, b)
} else {
fmt.Printf("%d is less than %d!\n", a, b)
}
}
Output:
$ go build if-elseif.go $ ./if-elseif Compares a and b variables 10 is greater than 6!« Previous Next »
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