vault backup: 2024-03-21 22:58:58

Semester 2/Programming 2/Assessment 4 Notes

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+private void readFilmData(String fileName) throws IOException //1
+{
+	File filmFile = new File(filename); //2
+	Scanner scanner1 = new Scanner( filmFile ); //3
+	while (scanner1.hasNext() ) //4 could throw a FileNotFoundExcpetion
+	{
+		String line = scanner1.nextLine(); //5
+		Scanner scanner2 = new Scanner(line);
+		scanner2.useDelimiter("[ ]*(,)[ ]*");
+		String filmTitle = scanner2.next();
+		String filmRating = scanner2.next();
+		int short = scanner2.nextInt();
+		// other code here to read & store rest of data
+		scanner2.close();
+	}
+	scanner1.close();
+}
+
+Citizen ->
+	English -> 
+		Mancunian, 
+		Londoner
+	Scots
+	
+Citizen person1;
+English person2;
+Scots person3;
+Mancunian person4;
+Londoner person5;
+
+person1 = new Londoner();
+person1 type Citizen. Legal
+
+person2 = new Mancunian();
+person2 type English. Legal
+
+person5 = new English();
+person5 type Londoner. Illegal
+
+persona2 = new Scots();
+person2 type English. Illegal
+
+factorial(3) ->
+	x = 2
+	y = factorial(2)
+		factorial(2) ->
+			x = 1
+			y = factorial(1) -> 1
+			n*y = 2*1 = 2
+	n*y = 2*3 = 6 
+		
+		
+		
+public int countTree(BinTreeNode t)
+{
+      int count;
+      if (t == null)
+         count = 0;
+      else
+         count = countTree(t.leftChild) + 1 + countTree(t.rightChild);
+      return count;
+}
+
+	
+