From 59807092f131c0a32a67d09404094b6166fb8a03 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=BB=91=E5=A2=A8=E6=B0=B4=E9=B1=BC?=
 <heimoshuiyu@gmail.com>
Date: Thu, 28 Apr 2022 12:06:09 +0800
Subject: [PATCH] Upload files to 'assignment5/Question3'

---
 assignment5/Question3/StartGrading.java | 126 ++++++++++++++++++++++++
 1 file changed, 126 insertions(+)
 create mode 100644 assignment5/Question3/StartGrading.java

diff --git a/assignment5/Question3/StartGrading.java b/assignment5/Question3/StartGrading.java
new file mode 100644
index 0000000..44c9673
--- /dev/null
+++ b/assignment5/Question3/StartGrading.java
@@ -0,0 +1,126 @@
+//Q3
+public class StartGrading {
+	public static void testVehicle() {
+//The Vehicle class is abstract. We cannot create objects from this class. Therefore, we cannot test anything
+	}
+
+	public static void testCar() {
+		// test case for constructors
+		try {
+// exception
+			Car c1 = new Car(70, 80);
+		} catch (BadSpeedSetting e) {
+			System.out.println(e.getMessage().equals("Speed cannot be greater than speed limit!"));
+		}
+		try {
+// exception
+			Car c2 = new Car(70, -10);
+		} catch (BadSpeedSetting e) {
+			System.out.println(e.getMessage().equals("Speed cannot be negative!"));
+		}
+// test case for accelerate, canFly and getSpeed methods
+		try {
+			Car c3 = new Car(100, 80);
+// test the canFly method
+			System.out.println(c3.canFly() == false);
+			c3.accelerate(10);
+			System.out.println(c3.getSpeed() == 90);
+// test the accelerate with positive amount
+			c3.accelerate(-20);
+			System.out.println(c3.getSpeed() == 70);
+// test the accelerate with negative amount 
+			c3.accelerate(35);
+// exception 
+		} catch (BadSpeedSetting e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		} catch (ExceedSpeedLimit e) {
+			System.out
+					.println(e.getMessage().equals("Current speed is 70. Accelerate 35 will exceed the speed limit!"));
+		} catch (NotEnoughSpeed e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		}
+		try {
+			Car c4 = new Car(100, 80);
+// exception
+			c4.accelerate(-90);
+		} catch (BadSpeedSetting e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		} catch (ExceedSpeedLimit e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		} catch (NotEnoughSpeed e) {
+			System.out.println(e.getMessage().equals("Current speed is " + 80 + ", not enough speed to decelerate!"));
+		}
+	}
+
+	public static void testAircraft() {
+		// test case for constructors
+		try {
+			// Exception
+			Aircraft a1 = new Aircraft(70, 80, 1000);
+		} catch (BadSpeedSetting e) {
+			System.out.println(e.getMessage().equals("Speed cannot be greater than speed limit!"));
+		} catch (BadAltitudeSetting e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		}
+		try {
+			// exception
+			Aircraft a2 = new Aircraft(70, -10, 1000);
+		} catch (BadSpeedSetting e) {
+			System.out.println(e.getMessage().equals("Speed cannot be negative!"));
+		} catch (BadAltitudeSetting e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		}
+		try {
+			// exception
+			Aircraft a3 = new Aircraft(700, 200, -10);
+		} catch (BadSpeedSetting e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		} catch (BadAltitudeSetting e) {
+			System.out.println(e.getMessage().equals("Altitude cannot be negative!"));
+		}
+		// Test case for accelerate, canFly, getSpeed and getAltitude methods
+		try {
+			Aircraft a4 = new Aircraft(700, 200, 100);
+			// test the getAltitude method
+			System.out.println(a4.getAltitude() == 100);
+			// test the canFly method
+			System.out.println(a4.canFly() == true);
+			a4.accelerate(100);
+			System.out.println(a4.getSpeed() == 300);
+			// test the accelerate with positive amount
+			a4.accelerate(-200);
+			System.out.println(a4.getSpeed() == 100);
+			// test the accelerate with negative amount
+			// exception
+			a4.accelerate(650);
+		} catch (BadSpeedSetting e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		} catch (BadAltitudeSetting e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		} catch (ExceedSpeedLimit e) {
+			System.out.println(
+					e.getMessage().equals("Current speed is 100. Accelerate 650 will exceed the speed limit!"));
+		} catch (NotEnoughSpeed e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		}
+		try {
+			Aircraft a5 = new Aircraft(700, 200, 100);
+			// exception
+			a5.accelerate(-300);
+		} catch (BadSpeedSetting e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		} catch (BadAltitudeSetting e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		} catch (ExceedSpeedLimit e) {
+			System.out.println("BUG! THIS MUST NEVER HAPPEN!");
+		} catch (NotEnoughSpeed e) {
+			System.out.println(e.getMessage().equals("Current speed is " + 200 + ", not enough speed to decelerate!"));
+		}
+	}
+
+	public static void main(String[] args) {
+		Vehicle.testVehicle();
+		Car.testCar();
+		Aircraft.testAircraft();
+	}
+}