Lab 4

lab/lab4/Question2/Start.java

@@ -0,0 +1,30 @@
+/*
+ * Explain:
+ * The check method is static because it is do not need to create an Start object.
+ */
+
+public class Start {
+	public static void main(String[] args) {
+		Student.testStudent();
+
+		Student stu = new Student(123);
+		System.out.println(check(stu) == "need coffee");
+		stu.fallAsleep();
+		System.out.println(check(stu) == "sweet dreams");
+	}
+
+	/**
+	 * check student sleeping. If student is sleeping, return "sweet dreams", if
+	 * not, return "need coffee".
+	 *
+	 * @param stu. Student object
+	 * @return String.
+	 */
+	public static String check(Student stu) {
+		if (stu.isSleeping()) {
+			return "sweet dreams";
+		} else {
+			return "need coffee";
+		}
+	}
+}