final project q7

finalproject/Question7/ViewSimple.java

@@ -0,0 +1,36 @@
+/*
+ * Author: CHEN Yongyuan (Walter) 1930006025 from OOP(1007)
+ * Date: 2022-04-25
+ */
+
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+
+public class ViewSimple extends JFrame implements ModelListener {
+	private Library m;
+	private ControllerSimple c;
+	private JLabel label;
+
+	public ViewSimple(Library m, ControllerSimple c) {
+		this.m = m;
+		this.c = c;
+
+		// window
+		this.setTitle("View Simple");
+		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		this.setSize(300, 200);
+
+		m.addListener(this);
+
+		// component
+		label = new JLabel("Total number of borrowed books: " + m.totalBorrowedBooks());
+		add(label);
+
+		// final
+		this.setVisible(true);
+	}
+
+	public void update() {
+		label.setText("Total number of borrowed books: " + m.totalBorrowedBooks());
+	}
+}