Overview
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 versions of the JDK, such as Java 10 and Java 11. Students practice the skills learned in each lesson through hands-on labs, using the latest major version of Java.
Who should attend
- System Analysts
- Architect
- Java Developers
- Technical Consultant
Prerequisites
Suggested Prerequisites
- Familiarity with general computer programming concepts and techniques
- Experience with another programming language
Course Objectives
- Create simple Java classes and use object references to access fields and methods in a class
- Demonstrate polymorphism by implementing a Java interface
- Handle a checked exception in a Java application
- Use a Predicate Lambda expression as the argument to a method
- Define and implement a simple class hierarchy that supports application requirements
- Write Java code that uses variables, arrays, conditional and loop constructs of achieve program objectives
- Identify modular programming principles
- Access and create static fields and methods
- Encapsulate a class using access modifiers and overloaded constructors
- Manipulate numeric, text, and string data using appropriate Java operators
- Set environment variables to allow the Java compiler and runtime executables to function properly
Product Description
- What is a Java Program
- Creating a Java Main class
- Data in the Cart
- Managing Multiple Items
- Describing Objects and Classes
- Manipulating and Formatting the Data in Your Program
- Creating and Using Methods
- Using Encapsulation
- More on Conditionals
- More on Arrays and Loops
- Using Inheritance
- Using Interfaces
- Handling Exceptions
- Deploying and Maintaining the Soccer Application
- Understanding Modules
- JShell
Outline
What is a Java Program
- Running and testing a Java program
- Java technology and development environment
- Key features of the Java language
Creating a Java Main class
- Java classes
- Adding a Main method
- The Main method
Data in the Cart
- Manipulating numeric data
- Working with numbers
- Introducing variables
- Working with strings
Managing Multiple Items
- Working with a list of items
- Working with conditions
- Using IF statements
- Processing a list of items
Describing Objects and Classes
- Working with object references
- Doing more with arrays
- Declaring, instantiating, and initializing objects
- Defining fields and methods
- Working with objects and classes
Manipulating and Formatting the Data in Your Program
- Using the StringBuilder class
- More about primitive data types
- Using the Java API docs
- More numeric operators
- Using the String class
- Promoting and casting variables
Creating and Using Methods
- How arguments are passed to a method
- Using methods
- Overloading a method
- Static methods and variables
- Method arguments and return values
Using Encapsulation
- Access control
- Overloading constructors
- Encapsulation
More on Conditionals
- More ways to use IF/ELSE constructs
- Using the Netbeans debugger
- Relational and conditional operators
- Using switch statements
More on Arrays and Loops
- The ArrayList class
- Nesting loops
- Parsing the args array
- Alternate looping constructs
- Working with dates
- Two-dimensional arrays
Using Inheritance
- Working with subclasses and superclasses
- Creating and extending abstract classes
- Overriding methods in the superclass
- Overview
Using Interfaces
- Using the List interface
- Using interfaces
- Introducing Lambda expressions
- Polymorphism in the JDK foundation classes
- Local-variable type inference
- Polymorphism
Handling Exceptions
- Propagation of exceptions
- Overview
- Handling multiple exceptions and errors
- Catching and throwing exceptions
Deploying and Maintaining the Soccer Application
- Application modification and requirements
- Packages, JARs, architecture
Understanding Modules
- Module declarations
- Modular JDK
- JARs
- The Module system
JShell
- Testing code
- JShell basics
- JShell in an IDE