Java Application Developer Certificate Program Competencies

Transcription

1 Java Application Developer Certificate Program Competencies After completing the following units, you will be able to: Basic Programming Logic Explain the steps involved in the program development cycle Write Pseudocode statements and flowchart symbols Use a sentinel value to end a program Understand programming and user environments Declare and use variables and constants Perform arithmetic operations Discuss the advantages of modularization and how to modularizing a program Explain the features of good program design and disadvantages of unstructured spaghetti code Use the three basic structures sequence, selection, and loop to design and implement an algorithm Use a priming input to structure a program The need for structure and how to recognizing structure Create Boolean expressions and the selection structure Utilize relational comparison operators Construct AND, OR and NOT logic Make selections within ranges Predict precedence when combining AND and OR operators Explain the advantages of looping and common loop applications Use a for and while loop with a loop control variable while avoiding common loop mistakes Utilize nested loops Discuss the similarities and differences between selections and loops Explain what an arrays is and how an array can replace nested decisions Use constants with arrays Search an array for an exact match or range match Use parallel arrays and multidimensional arrays Use a for loop to process arrays Explain the data hierarchy Perform basic file operations: open, close, read, write Apply control break logic in appropriate circumstances Sort multi-field records Explain the parts of a method Create methods with no parameters or require parameters Create methods that return a value Pass arrays to methods Overload methods Use predefined methods Recognize method design issues, including implementation hiding, cohesion, and coupling Final - last update 7/2/2015 Page 1

2 Explain recursion Explain the principles and advantages of object-oriented programming Create organized classes Implement public and private access to appropriate members in classes Utilize instance and static methods in classes Use objects Understand the use of and create constructors and destructors Illustrate the use of inheritance Predict and plan for exceptions with exception handling Explain how the Model-View-Controller Design pattern functions Java Basics Compile and run your first Java program Recognize and debug compile-time and runtime errors Define the scope of variables * Define the structure of a Java class * Create executable Java applications with a main method; run a Java program from the command line; including console output. * Import other Java packages to make them accessible in your code * Process command line arguments Compare and contrast the features and components of Java such as: platform independence, object orientation, encapsulation, etc. * Write arithmetic expressions and assignment statements Appreciate the importance and demonstrate the use of comments and good code layout Develop strategies for testing your program including the use of unit testing frameworks Browse, utilize and write JavaDocs effectively Working With Java Data Types Declare and initialize variables and constants * Cast primitive data types * Differentiate between object reference variables and primitive variables * Know how to read or write to object fields * Explain an Object's Lifecycle (creation, "dereference by reassignment" and garbage collection) * Write statements using the Boolean data type Develop code that uses wrapper classes such as Boolean, Double, and Integer. * Understand the properties and limitations of integers and floating-point numbers Using Operators and Decision Constructs Use Java operators; including parentheses to override operator precedence * Test equality between Strings and other objects using == and equals () * Compare integers, floating-point numbers, and Strings Create if and if/else and ternary constructs to implement decisions * Use a switch statement * Creating and Using Arrays Final - last update 7/2/2015 Page 2

3 Declare, instantiate, initialize and use a one-dimensional array * Declare, instantiate, initialize and use multi-dimensional array * Demonstrate common algorithms for processing arrays and arraylists Using and Constructing Loops Create and use while loops * Collect elements using arrays and arraylists Create and use for loops to traverse arrays and arraylists * Create and use the enhanced for loop to traverse arrays and arraylists * Process arrays using nested loops Create and use do/while loops * Compare loop constructs * Use break and continue * Creating and working with Objects and Classes Understand the concepts of classes, objects and encapsulation Implement instance variables, methods and constructors for classes and objects Design, implement, and test your own classes Understand the behavior of object references, static variables and static methods Organize programs using packages Working with Methods and Encapsulation Create methods with arguments and return values; including overloaded methods * Apply the static keyword to methods and fields * Create and overload constructors; including impact on default 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 Describe inheritance and its benefits * Implement subclasses that inherit and override superclass methods Develop code that demonstrates the use of polymorphism; including overriding and object type versus reference type * Determine when casting is necessary * Understand the common superclass Object and its methods Use super and this to access objects and constructors * Use abstract classes and interfaces * Declare and implement interface types Input and Output Read and write text files Classify characters to process text Work with streams Validate user input Handling Exceptions Differentiate among checked exceptions, unchecked exceptions, and errors * Final - last update 7/2/2015 Page 3

4 Create a try-catch block and determine how exceptions alter normal program flow * Describe the advantages of Exception handling * Create and invoke a method that throws and catches an exception * Recognize common exception classes (such as NullPointerException, ArithmeticException, ArrayIndexOutOfBoundsException, ClassCastException) * Working with classes from the Java API Create programs that read and process inputs, and display the results Manipulate data using the StringBuilder class and its methods * Creating and manipulating Strings * Create and manipulate calendar data using classes from java.time.localdatetime, java.time.localdate, java.time.localtime, java.time.format.datetimeformatter, java.time.period * Declare and use an ArrayList of a given type * Write a simple Lambda expression that consumes a Lambda Predicate expression * Graphical User Interfaces using Swing Implement simple graphical user interfaces Add buttons, text fields, and other components to a frame window Handle events that are generated by buttons Write programs that display simple drawings Use layout managers to arrange user-interface components in a container Demonstrate familiarity with common user-interface components, such as radio buttons, checkboxes, and menus Build programs that handle events generated by user-interface components Recursion Utilize recursive helper methods Understand the relationship between recursion and iteration and recognize appropriate usage Describe when the use of recursion affects the efficiency of an algorithm Identify problems that are much easier to solve by recursion than by iteration Process data with recursive structures using mutual recursion Networking Explain the concept of sockets Create sockets Send and receive data through sockets Parse data using StringTokenizer and String.split with regular expressions Retrieve files from an HTTP server Retrieve Web documents by using the URL class Communicate with web servers and server-side applications through the Hypertext Transfer Protocol (HTTP) Basic Web Design Create and publish a Web page in HTML5 Validate a document Add main HTML elements to web pages Final - last update 7/2/2015 Page 4

5 Add Block-level and text-level HTML elements Create hypertext links Add images to documents Use DIV tags to layout HTML documents Create HTML Forms Create basic CSS for formatting pages Analyze the current available tools used to communicate between a server and database to update and display web pages Deploying Applications Describe how the following items are deployed: Individual.class files, JAR files, OS wrapper around class files or JAR files, Applets, Java Web Start, WAR files Discuss server-based alternatives to deploying applications Building Database Applications with JDBC Understand how relational databases store information Read and understand a UML diagram Describe the interfaces that make up the core of the JDBC API including the Driver, Connection, Statement, and ResultSet interfaces and their relationship to provider implementations ^ Identify the components required to connect to a database using the DriverManager class including the JDBC URL ^ Query a database with the structured Query language (SQL) ^ Connect to a database with Java Database Connectivity (JDBC) ^ Write database programs that insert, update, and query data in a relational database Submit queries and read results from the database including creating statements, returning result sets, iterating through the results, and properly closing result sets, statements, and connections ^ Explain the purpose and benefits of an object/relational mapping tool Localization Describe the advantages of localizing an application ^ Read and set the locale by using the Locale object ^ Create and read a Properties file ^ JSP/Servlets Describe the role of JSP and servlets Describe the basic structure of servlets Create a servlet that generates plain text Create a servlet that generates HTML Describe the servlet life cycle Illustrate servlet debugging strategies Understand the need for JSP and evaluate the benefits Understand the JSP lifecycle Create and install basic JSP pages Scripting Select a scripting engine for the appropriate circumstance Create and execute a basic script Final - last update 7/2/2015 Page 5

6 Discuss the advanced features scripting engines offer Security Discuss the three mechanism to help ensure safety of Java code: language, access control and code signing Illustrate how digital signatures are utilized Explain code signing Explain how encryption works and why it is important Sanitize user input Git version control Summarize how to setup the Git environment Demonstrate how to set up a new project and repository Explain how to work with code, including checking out, committing changes, destroying unwanted changes, viewing revisions and history Agile and Development Approaches Describe the players in the agile environment Explain the Agile development process and components, including user stories, test-driven development, SCRUM, sprints and backlog Identify the advantages and disadvantages of various Agile development methods, including Kanban, Scrum and Extreme Programming Identify other methodology of software development processes, including rapid application, prototyping and waterfall approaches The Java Development World Understand the components that go into full stack development Distinguish the security concerns that surround application development Notes Competencies followed by an asterisk ( * ) are covered on the Oracle Certified Associate, Java SE 8 Programmer I exam - 1Z0-808 Competencies followed by a caret ( ^ ) are covered on the Oracle Certified Professional, Java SE 8 Programmer II exam - 1Z1-809 Final - last update 7/2/2015 Page 6