rohanrajpal / advanced-programming-tutorials

Questions and Code for the tutorials I'll deliver for CSE201

Hi there 👋

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advanced-programming-tutorials's Issues

Exceptions not handled in tut7.

When we give unexpected input, program get terminated. I think to handle these exception, program should show error message then ask for input again.
I would like to contribute to this by handling these exception. If you want these exception to be handled in some other way, please let me know.

tut 5 is not running.

When I try to run Main.java in tut5 . I am getting many errors.
Main.java:77: error: 'else' without 'if' else{ ^ Main.java:86: error: class, interface, or enum expected private static int takeIntInput() { ^ Main.java:89: error: class, interface, or enum expected try { ^ Main.java:91: error: class, interface, or enum expected } catch (Exception ne) { ^ Main.java:93: error: class, interface, or enum expected } ^ 5 errors

tut9: create an actual clock

I want to create an actual analog clock

• JavaFX documentation
  https://docs.oracle.com/javafx/2/api/index.html
• circle, rectangle
• to move the rectangle
  • Rotate
  • Change x and y coordinate

Tut 5: Can achieve a better time complexity

Hi! ✋
In tut5/Main.java while we are checking if a target has been hit or not, we need not iterate over all the previous hits to check, rather keep a HashMap / HashSet for the same in order to achieve a better time complexity!

Referenced from:

advanced-programming-tutorials/tut-5/Main.java

Lines 45 to 46 in 623b88a

	for (int k = 0; k < prev.size(); k++) {
	if (prev.get(k).equals(new Pair(x, y))) {

Issue in equality check

advanced-programming-tutorials/tut-5/SoftToy.java

Line 22 in 6e4ef71

public boolean equals(Object o1){

Bug while creating multiple user in tut7

When we create multiple user in program it don't ask for username. It is because you used nextInt in tut7/Game.java and tut7/Menu.java, while taking integer input. I think by taking input as string and parsing it using Integer.parseInt() function to int will resolve this.

Hp should not be negative

While running tut-7 i found a bug that it hero hp can go negative. I think this should not be less than zero as mentioned in tut-7 pdf.

You choose to attack
Your Hp: 60/100Monsters Hp :180/200
Monster attack!
Your Hp: 35/100Monsters Hp :180/200
Choose move:

1. Attack
2. Defense
   3)Special Attack
   3
   Special power activated
   Performing special attack
   Your Hp: 35/100Monsters Hp :180/200
   Monster attack!
   Your Hp: -4/100Monsters Hp :180/200
   You have died start over
   You are at location 10 Choose path:
3. Go to Location 0
4. Go to Location 3
5. Go to Location 6

tut9: create an actual clock

I want to create an actual analog clock

• JavaFX documentation
  https://docs.oracle.com/javafx/2/api/index.html
• circle, rectangle
• to move the rectangle
  • Rotate
  • Change x and y coordinate

Issue in equals() of SoftToy.java

condition of checking equality might be wrong.

tut-5/SoftToy.java

tut-6 inputs are not taking properly

When i run tut-6 it is really difficult to understand what to enter because it is not printing what we have to enter. Also sometimes we need to enter 2 and 3 inputs together so it is really confusing what we have to enter.

valid type error handling is not done in CandyBar and Statitems

System.err.println("Enter a valid type");
System.exit(0);

Above error handling is been done only in SoftToy class. This should also been done in CandyBar and Statitems Classes.

tut 6: Add Exception for invalid path

Currently, the code throws out NoProductException if an invalid path is specified when deleting a product.

https://github.com/rohanrajpal/advanced-programming-tutorials/blob/main/tut-6/Database.java#L53

Create a new exception to do the same.