diff --git a/arrays/demo3.go b/arrays/demo3.go
new file mode 100644
index 0000000..2bddc24
--- /dev/null
+++ b/arrays/demo3.go
@@ -0,0 +1,19 @@
+package arrays
+
+import "fmt"
+
+func Demo3()  {
+	numbers := [5]int{20, 30, 50, 10, 2}
+	fmt.Println(numbers)
+
+	max_number := numbers[0]
+
+
+
+	for i := 0; i < len(numbers); i++ {
+		if numbers[i] > max_number {
+			max_number = numbers[i]
+		}
+		fmt.Println("max number : ", max_number)
+	}
+}
\ No newline at end of file
diff --git a/main.go b/main.go
index 5ec5f00..44d7669 100644
--- a/main.go
+++ b/main.go
@@ -13,5 +13,5 @@ func main() {
 	fmt.Print()
 	conditionals.Demo3()
 	loops.Demo5()
-	arrays.Demo2()
+	arrays.Demo3()
 }