Add: assignment 2 close #2

assignment2/Question1/Marathon.java

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+/*
+ * Author: CHEN Yongyuan (Walter) 1930006025 from OOP(1007)
+ * Date: 2022/03/04
+ * Description: This is the Running class which is the subclass of the Sport class
+ */
+
+public class Marathon extends Running {
+	/**
+	 * Constructor.
+	 *
+	 * @param playerNumber
+	 * 	  the player number
+	 * @param length
+	 * 	  the length of the marathon
+	 */
+	public Marathon(int playerNumber, double length) {
+		super(playerNumber, length);
+	}
+
+	/**
+	 * Constructor. Always set the length to 42.195
+	 *
+	 * @param playerNumber
+	 */
+	public Marathon(int playerNumber) {
+		this(playerNumber, 42.195);
+	}
+
+	/**
+	 * Test.
+	 */
+	public static void testMarathon() {
+		Marathon m1 = new Marathon(1, 39.39);
+		System.out.println(m1.getLength() == 39.39);
+		System.out.println(m1.getPlayerNumber() == 1);
+		System.out.println(m1.isFun() == false);
+
+		Marathon m2 = new Marathon(2);
+		System.out.println(m2.getLength() == 42.195);
+		System.out.println(m2.getPlayerNumber() == 2);
+		System.out.println(m2.isFun() == false);
+	}
+}