Java® es tanto un lenguaje de programación como una plataforma. La base de la plataforma Java es la Java Virtual Machine (JVM), en donde existen distintas versiones para múltiples entornos de hardware, desde grandes servidores hasta dispositivos móviles. Todo esto nos permite ejecutar el mismo código Java en diversos dispositivos, es lo que da a la tecnología su característica de portabilidad.

Hoy en día es una tecnología de Oracle® es sumamente utilizada y es gratuita; no solamente la plataforma Java, sino también librerías adicionales a las Standard, frameworks, entornos de desarrollo (IDE) y recientemente, soluciones de cloud computing gratuitas donde alojar una aplicación.

La Certificación Oracle de Java o mejor conocida por sus siglas OCJP “Oracle Certified Java Programmer” certifica que se cuenta con un conocimiento amplio sobre Java y esta dirigida para lograr programadores experimentados en el uso del lenguaje.

El objetivo que se persigue es comprender la sintaxis básica y la estructura del lenguaje Java y lograr la capacidad para crear aplicaciones que correrán en servidores y estaciones de trabajo usando JAVA SE.

Destinatarios:

Profesionales y estudiantes con conocimientos iniciales de Programación con intenciones de especializarse o obtener mayor conocimiento y entendimiento de la tecnología Java.

Java Basics

•    Define the scope of variables
•    Define the structure of a Java class
•    Create executable Java applications with a main method
•    Import other Java packages to make them accessible in your code

Working With Java Data Types

•    Declare and initialize variables
•    Differentiate between object reference variables and primitive variables
•    Read or write to object fields
•    Explain an Object's Lifecycle (creation, 'dereference' and garbage collection)
•    Call methods on objects
•    Manipulate data using the StringBuilder class and its methods
•    Creating and manipulating Strings

Using Operators and Decision Constructs  

•    Use Java operators
•    Use parenthesis to override operator precedence
•    Test equality between Strings and other objects using == and equals ()
•    Create if and if/else constructs
•    Use a switch statement

Creating and Using Arrays

•    Declare, instantiate, initialize and use a one-dimensional array
•    Declare, instantiate, initialize and use multi-dimensional array
•    Declare and use an ArrayList

Using Loop Constructs

•    Create and use while loops
•    Create and use for loops including the enhanced for loop
•    Create and use do/while loops
•    Compare loop constructs
•    Use break and continue  

Working with Methods and Encapsulation

•    Create methods with arguments and return values
•    Apply the static keyword  to methods and fields  
•    Create an overloaded method
•    Differentiate between default and user defined constructors
•    Create and overload constructors
•    Apply access modifiers
•    Apply encapsulation principles to a class
•    Determine the effect upon object references and primitive values when they are passed  into methods that change the values

Working with Inheritance

•    Implement inheritance
•    Develop code that demonstrates the use of polymorphism
•    Differentiate between the type of a reference and the type of an object
•    Determine when casting is necessary
•    Use super and this to access objects and constructors
•    Use abstract classes and interfaces

Handling Exceptions

•    Differentiate among checked exceptions, RuntimeExceptions and Errors
•    Create a try-catch block and determine how exceptions alter normal program flow
•    Describe what Exceptions are used for in Java
•    Invoke a method that throws an exception
•    Recognize common exception classes and categories

Java Class Design

•    Use access modifiers: private, protected, and public
•    Override methods
•    Overload constructors and methods
•    Use the instanceof operator and casting
•    Use virtual method invocation
•    Override the hashCode, equals, and toString methods from the Object class to improve the functionality of your class.
•    Use package and import statements

Advanced Class Design

•    Identify when and how to apply abstract classes
•    Construct abstract Java classes and subclasses
•    Use the static and final keywords
•    Create top-level and nested classes
•    Use enumerated types

Object-Oriented Design Principles

•    Write code that declares, implements and/or extends interfaces
•    Choose between interface inheritance and class inheritance
•    Apply cohesion, low-coupling, IS-A, and HAS-A principles
•    Apply object composition principles (including has-a relationships)
•    Design a class using a Singleton design pattern
•    Write code to implement the Data Access Object (DAO) pattern
•    Design and create objects using a factory pattern

Generics and Collections

•    Create a generic class
•    Use the diamond for type inference  
•    Analyze the interoperability of collections that use raw types and generic types
•    Use wrapper classes, autoboxing and unboxing
•    Create and use List, Set and Deque implementations
•    Create and use Map implementations
•    Use java.util.Comparator and java.lang.Comparable
•    Sort and search arrays and lists

String Processing

•    Search, parse and build strings (including Scanner, StringTokenizer, StringBuilder, String and Formatter)
•    Search, parse, and replace strings by using regular expressions, using expression patterns for matching limited to: . (dot), * (star), + (plus), ?, \d, \D, \s, \S,  \w, \W, \b. \B, [], ().
•    Format strings using the formatting parameters: %b, %c, %d, %f, and %s in format strings.

Exceptions and Assertions

•    Use throw and throws statements
•    Develop code that handles multiple Exception types in a single catch block
•    Develop code that uses try-with-resources statements (including using classes that implement the AutoCloseable interface)

• Lectura y comprensión de inglés técnico.
• Conocimiento y Práctia en al menos un lenguaje de programación
• Comprender los principios de la programacion orientada a objetos
• La comprensión básica de los conceptos de base de datos y la sintaxis SQL