diff --git a/w5/MainVehicle.java b/w5/MainVehicle.java
new file mode 100644
index 0000000..060339a
--- /dev/null
+++ b/w5/MainVehicle.java
@@ -0,0 +1,30 @@
+abstract class Vehicle{
+	public abstract void run();
+}
+class Car extends Vehicle{
+	public void run(){
+		System.out.println("小轿车驶过");
+	}
+}
+class Bike extends Vehicle{
+	public void run(){
+		System.out.println("自行车驶过");
+	}
+}
+class Trunk extends Vehicle{
+	public void run(){
+		System.out.println("卡车驶过");
+	}
+}
+public class MainVehicle{
+	public static void main(String[] args){
+		Vehicle[] vehicles = {
+			new Car(),
+			new Bike(),
+			new Trunk()
+		};
+		for(Vehicle v : vehicles){
+			v.run();
+		}
+	}
+}
\ No newline at end of file