AP Computer Science Principles taught interactively

Vasundhra tutored Aarush on Java for loops, covering syntax and logic through exercises like reversing numbers and calculating sums. Aarush initially struggled but improved with guidance, ultimately writing a method to sum even numbers.

Vasundhra taught Darren how to use the iText PDF library in Java to create PDF documents, add pages, paragraphs, and lists, and customize text properties like font and color. Darren practiced adding these elements to a PDF and was assigned a practice problem to work on over the weekend. They agreed to review his work in the next session and continue learning about adding images, tables, and borders.

Vasundhra helped Vinay review core Java concepts, including classes, variable scope, methods, and conditional statements. Vinay worked on a coding exercise to create a `checkAge` method using `if` and `else if` statements. Vasundhra provided feedback on the code and explained the importance of using `else if` for creating linked conditional chains, and they agreed to continue the lesson in a future session.

Vasundhra assisted Darren in configuring the iText library in NetBeans using Maven to enable PDF creation in Java. Darren successfully added the iText dependencies to the pom.xml file, resolved build errors, and created a basic Java program that generates an empty PDF file within the project directory. They plan to continue developing the PDF content in a future session.

Vasundhra and Darren practiced using iterators and while loops to manipulate an ArrayList in Java. Darren modified his code to use the `remove` method of the iterator to filter the list based on divisibility. Darren was assigned homework to practice traversing an ArrayList of fruit names using the Enumeration class.

Alisha and Vasundhra had a Wiingy session to review Java fundamentals for Alisha's university studies. They covered data types (primitive vs. non-primitive), type casting (implicit and explicit), and if/else conditional statements (including ternary operators). Alisha then worked through coding problems, including checking number positivity and vowel/consonant identification, with Vasundhra providing guidance and correcting errors. They plan to continue practicing with loops in a future session.