Beschreibung
This entry-level course is aimed at programmers who are new to Java and who need to learn its concepts, language constructs, and data types. Included in the agenda are topics on exception handling, lambda expressions, and modular programming.
The course is designed for programmers who will apply these language skills to develop programs using the latest major versions of the JDK, currently Java 11. Students practice the skills learned in each lesson through hands-on labs.
Learn To:
Use Java programming language constructs to create a Java technology application.
Use decision and looping constructs and methods to dictate program flow.
Understand basic object oriented concepts such as inheritance, encapsulation, and abstraction.
Use and manipulate object references, and to write simple error handling code.
Use the new SE 8 java.time and java.time.format packages to format and print the local date and time.
Specify a data modification by passing a predicate lambda expression to the Collections class.
Vorteile für Sie
By enrolling in this course, you'll expand your knowledge of Java SE 8, while building your Java skill set. You'll build a solid basis in the Java programming language upon which to base continued work and training.
The goals for you are to: Write Java code that uses variables, arrays, conditional and loop constructs
Manipulate primitive numeric data and string data using Java operators
Create Java classes and use object references
Access the fields and methods of an object
Manipulate text data using the methods of the String and StringBuilder classes
Use casting without losing precision or causing errors
Declare, override, and invoke methods
Access and create static fields and methods
Use classes from the java.time and java.time.format packages to format and print the local date and time
Encapsulate a class using access modifiers and overloaded constructors
Define and implement a simple class hierarchy
Demonstrate polymorphism by implementing a Java Interface
Use a Predicate Lambda expression as the argument to a method
Handle a checked exception in a Java application
Kursinhalt
What Is a Java Program? Introduction to Computer Programs
Key Features of the Java Language
The Java Technology and Development Environment
Running/testing a Java program
Creating a Java Main Class Java Classes
The main Method
Data In the Cart Introducing variables
Working with Strings
Working with numbers
Manipulating numeric data
Managing Multiple Items Working with Conditions
Working with a List of Items
Processing a list of items
Describing Objects and Classes Working with objects and classes
Defining fields and methods
Declaring, Instantiating, and Initializing Objects
Working with Object References
Doing more with Arrays
Introducing the NetBeans IDE
Introducing the Soccer League Use Case
Manipulating and Formatting the Data in Your Program Using the String Class
Using the Java API Docs
Using the StringBuilder Class
More about primitive data types
The remaining numeric operators
Promoting and casting variables
Creating and Using Methods Using methods
Method arguments and return values
Static methods and variables
How Arguments are Passed to a Method
Overloading a method
Using Encapsulation Access Control
Encapsulation
Overloading constructors
More on Conditionals Relational and conditional operators
More ways to use if/else constructs
Using Switch Statements
Using the NetBeans Debugger
More on Arrays and Loops Working with Dates
Parsing the args Array
Two-dimensional Arrays
Alternate Looping Constructs
Nesting Loops
The ArrayList class
Using Inheritance Overview of inheritance
Working with subclasses and superclasses
Overriding methods in the superclass
Introducing polymorphism
Creating and extending abstract classes
Using Interfaces Polymorphism in the JDK foundation classes
Using Interfaces
Using the List Interface
Introducing Lambda expressions
Handling Exceptions Handling Exceptions: An overview
Propagation of exceptions
Catching and throwing exceptions
Handling multiple exceptions and errors