Dominic Nguyen datduyng

Cart attribute
  int dx:
  int dy: 
  int state;
  int x,y; track coordinate on matrix
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File I/O

A file is a unit of stored memory, usually on disk
A file can also be... directories, buffers (standard input/output are files), a socket could be a file, a program is a file
You can write to and read from a file
Files may be plaintext or binary (or plaintext but not intended for human consumption: EDI, XML, JSON, base-64 encoding)
The basic steps to follow are:
1. Open the file
2. Process the file

Strings represent data that may need to be processed
Common to deal with CSV (Comma separated value) or similar formatted data
Standard library functions can help, but processing involves designing algorithms

There is a ctype.h library that provides several "check" functions for single characters: isalpha(c), isdigit(c), islower(c), isupper(c), isspace(c), conversion: toupper(c), tolower(c), etc.

Section

What is Eduzon? It is a learning tools to help indivduals with desire to learn other language.

User input a story, words and sentences of supported languages. Eduzon's back end will try it best to mask an incredible video with voice and picture to help one learn by visualizing.
Working Flowchart

An introduction to loop control structures.

We need a way to repeatedly execute blocks of code
There are three basic elements to a loop control structure:
- An initialization (where the loop starts)
- A continuation condition (how long should the loop continue or when should it stop)

Strings are ordered sequences of characters (may be ASCII or Unicode)
Different languages represent strings differently
Most languages provide a standard library of functions/methods to process strings

It is rare to only deal with one piece of data
Usually, more than one number, string, object, etc.
Collections of data can be stored in arrays
In general:
- arrays have a single identifier (name)
  - You can access individual elements in an array using an index

A function is a reusable unit of code that may take input(s) and may produce an output
Already familiar with functions: main(), printf(), sqrt(), etc.
Functions facilitate code reuse, you don't have to copy-pasta the same code over and over
Procedural abstraction: functions allow us to ignore the small details of how a certain block of code or algorithm works
Functions encapsulate functionality into reusable abstract code blocks
Standard libraries and functions have a lot of design, optimization, testing, debugging, etc. behind them, USE them

	package cse.unl;

	import java.time.LocalDate;

	public class Demo {

	public static void main(String args[]) {
	LocalDate dateOfBirth = LocalDate.of(1990, 7, 9);

	Student s1 = new Student(35140602, "Chris", "Bourke", 4.0, dateOfBirth);