pointer example 1

main.go

@@ -46,7 +46,7 @@ func main() {
 	examplerange.Demo3()
 
 	number := 20
-	pointers.Demo1(number)
+	pointers.Demo1(&number)
 	fmt.Println("Number in Main go file", number)
 
 }

pointers/demo1.go

@@ -2,7 +2,7 @@ package pointers
 
 import "fmt"
 
-func Demo1(number int)  {
-	number = number + 1
-	fmt.Println("Number in Demo file", number)
+func Demo1(number *int)  {
+	*number = *number + 1
+	fmt.Println("Number in Demo file", *number)
 }