Add: assignment 2 close #2

assignment2/Question1/Tennis.java

@@ -0,0 +1,33 @@
+/*
+ * Author: CHEN Yongyuan (Walter) 1930006025 from OOP(1007)
+ * Date: 2022/03/04
+ * Description: This is the Tennis class which is the subclass of the Sport class.
+ */
+
+public class Tennis extends Sport {
+	/**
+	 * Constructor. Tennis has 2 player.
+	 */
+	public Tennis() {
+		super(2);
+	}
+
+	/**
+	 * Tennis is fun.
+	 *
+	 * @return true
+	 */
+	@Override
+	public boolean isFun() {
+		return true;
+	}
+
+	/**
+	 * Test.
+	 */
+	public static void testTennis() {
+		Tennis t = new Tennis();
+		System.out.println(t.getPlayerNumber() == 2);
+		System.out.println(t.isFun() == true);
+	}
+}