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Our Mission We are here to provide optimal methods in offering premium services about programming languages with respect for the demands of our clients and to apply new technological attainment for faster and and more efficient treatment to our clients. Web Creator Miguel Carlo G. Flores is a freshman in Angeles University Foundation currently taking Bachelor of Science in Computer Science. He created this website to educate people of all ages about programming languages. The Codex Corporation Programming School is his first accomplished website in pursuing his future company. Sources from the page came from tutorialspoint , w3schools , and data flair training .

Python Basics Most Windows and Mac computers come with Python pre-installed. You can check that via Command Line search. The particular appeal of Python is that you can write a program in any text editor, save it in .py format and then run via a Command Line. But as you learn to write more complex code, especially data science, you have to switch to an IDE or IDLE. Integrated Development and Learning (IDLE) Integrated Development and Learning Environment (IDLE) comes with every Python installation, its advantage over other text editors is that it highlights important keywords (such as string functions), making it easier for you to interpret code. Shell is the default mode of operation for Python IDLE. Basically, it is a simple loop that performs which follows four steps: Reads the Python statement. Evaluates the results of it. Prints the result on the screen. Loops back to read the next statement. Learn more

Java Basics Java is platform independent, which means that you can create a program once and have it run on a variety of different systems! Java is a portable, powerful, and dynamic programming language that can be used to develop practically any kind of application. Java is installed on about 3 billion devices. Moreover, this high-level programming language is used to create applications for Google's Android operating system, as well as a variety of desktop applications such as media players, antivirus programs, web applications, and enterprise applications (such as banking). Code Input: Code Output: Each line of code that may be executed must be included within a class in Java. In the example, the class is called MyClass. Each Java application has an entrance point, or starting point, which is represented by the main method. Along with the term "main," the terms "public" and "static." Learn more

Python Built-in Functions The most popular function in Python is print() . This function has other cousins that are built-in the platform. Input() Function Input() function is a simple way to prompt the user for some input (such as provide their name). All user input is stored as a string. Code Input: name = input ("Hi! What's your name?") print ("Nice to meet you " + name + "!") Code Output: Hi! What's your name? Nice to meet you, Jim! Len() Function Len() function helps you find the length of any string, list, tuple, dictionary, or another data type. It is a handy command to determine excessive values and trim them to optimize the perrformance of your program. Code Input for a string: # testing len() str1 = "Hope you are enjoying the tutorial!" print ("The length of the string is : " , len(str1) ) Code Output: The length of the string is: 35 Filter() Filter() function is used to exclude items in an iterable object (tuples, lists, etc) ages = [5, 12, 17, 18, 24, 32] def myFunc ( x ): if x < 18 return False else : return True adults = filter(myFunc, ages) for x in adults print(x) Learn more

Java Built-in Functions In Java, a methods is the same as a function . All the functions must be defined within a class. By that, it can be summarized by defining a Java method as a function belonging to a class. A function is a named unit of code that can be invoked anywhere in the class. Structure of a Function Access specifier – This shows the scope of availability of a function. ‘Public’ means that the function can be called from anywhere in the program. We have other access specifiers such as private and protected. Protected, the method can only be called within the class and its subclasses. Private can only be called inside the class . Modifier – ‘ Static ’ is optional in a function definition. In this case static means the function is a not an object of the main class but a method that belongs to the main class. Return type – This is a function that returns a value and functions that do not return anything. Void, means that the function does not have a return value. If the function was to return a value, replace void with the data type of the returned value. Function name – This the name of the function. Parameter list – This informs the compiler about the data type it will receive and the value to be returned. apply() Method The apply() method of the Function interface can take any object type as an argument and can return any object type. andThen() Method The andThen() method of the Function interface, the input function will be executed first, and on the result the second function (andThen) will be executed. compose() Method The compose() method is just the reverse of the andThen() method. The second functional interface will be executed first and followed by the first functional interface. Learn more

Python Syntax Like any other programming language, Python has a set of rules. These rules define how to write a program in that language. It also explains how the interpreter understands the code. These rules are set on the runtime system and followed by the person writing the code. Comments A comment is a piece of text within a program that is not executed. It can be used to provide additional information to aid in understanding the code. The # character is used to start a comment and it continues until the end of the line. Arithmetic Operations Python supports different types of arithmetic operations that can be performed on literal numbers, variables, or some combination. The primary arithmetic operators are: + for addition - for subtraction * for multiplication / for division % for modulus (returns the remainder) ** for exponentiation Plus-Equals Operator += The plus-equals operator += provides a convenient way to add a value to an existing variable and assign the new value back to the same variable. In the case where the variable and the value are strings, this operator performs string concatenation instead of addition. The operation is performed in-place, meaning that any other variable which points to the variable being updated will also be updated. Variables A variable is used to store data that will be used by the program. This data can be a number, a string, a Boolean, a list or some other data type. Every variable has a name which can consist of letters, numbers, and the underscore character _ . The equal sign = is used to assign a value to a variable. After the initial assignment is made, the value of a variable can be updated to new values as needed. Print () function The print() function is used to output text, numbers, or other printable information to the console. It takes one or more arguments and will output each of the arguments to the console separated by a space. If no arguments are provided, the print() function will output a blank line. Learn more

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Main Data Types of Python Every value in Python is called an " object ". Every object has a specific data type. The three most-used data types are the following: Integers (int) Integers are numbers used to represent an object such as number 3 . Integers = ...... -2, -1, 0, 1, 2, 3, 4, 5, ....... Floating-point numbers (float) Used to represent floating-point numbers. Float-point numbers are any real numbers with a decimal point. Floating-point numbers = .... -1.25, -1.0, 0.0 , 1,.5, 2.3, 3.5, ... Strings Strings are array of sequenced characters and is written inside single quotes, double quotes or triple quotes. Also, A string is a list of characters that is in order. You can codify a sequence of characters using a string. For instance, the word "hello". Strings = 'Yo', "Hello!", "'Hi!"' Lists Lists are used to specify an ordered sequence of elements. Basically, they help programmers keep related data together and perform the same operations on several values at once. Compared to string, lists are mutable or changeable. my_list = [1, 2, 3] my_list2 = ["a", "b", "c"] Tuples Tuples are similar to lists. They allow you to display an ordered sequence of elements. But they are immutable and you cannot change the values stored in a tuple. These are slightly faster than lists in optimizing the codes. my_tuple = (1, 2, 3, 4, 5) my_tuple[1:3] Dictionaries Dictionaries holds indexes with keys that are mapped to certain values. These key-value pairs offers a great way of organizing and storing data in Python. A key value can either be a string , boolean , or integer . Customer 1 = {'username': 'john-sea': 'online': false, 'friends':100} Learn more

Getting Started Java Syntax Main Data Types of Java Java Built-in Functions

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Java Java is a high-level, class-based, object-oriented programming language with a focus on minimizing implementation dependencies. It is a general-purpose programming language designed to enable programmers to write once and run anywhere (WORA), which means that compiled Java code runs on all systems that accept Java without the need to recompile. Typically, Java applications are compiled to bytecode, which may execute on any Java virtual machine (JVM), independent of the underlying computer architecture. Learn more

Main Data Types of Java Variables are nothing more than memory addresses dedicated for storing values. This means that when you declare a variable, you allocate memory for it. The operating system allocates memory and determines what can be put in reserved memory based on the data type of a variable. As a result, by associating variables with multiple data types, you can store integers, decimals, or characters in these variables. There are two data types in Java: Primitive Data Types Primitive data types are the ones which are predefined by the programming language which in this case is Java. Without primitive data types it would be impossible to frame programs . Primitive data types are also the building blocks of Non-primitive data types. Types of Java Primitive Data Types : Int Float Char Boolean Byte Short Long Double Non- Primitive Data Types These are the datatypes which have instances like objects. Hence they are called reference variables . Types of Java Non-Primitive Data Types : Classes Interfaces Strings Arrays Learn more