Java SE: Inheritance, Interfaces, and Collections, Part 7 of 18

Course description

This course introduces the Java programming language and how to develop Java applications using Eclipse. Students learn the syntax of the Java programming language, object-oriented programming using Java, exception handling, generics, collections, and file input/output (I/O) with a focus on many of the common programming Java commands like Arrays, and Inheritance. The course will conclude with Exceptions, Polymorphism, Collections, Generics and other useful Java classes.

Each LearnNowOnline training course is made up of Modules (typically an hour in length). Within each module there are Topics (typically 15-30 minutes each) and Subtopics (typically 2-5 minutes each). There is a Post Exam for each Module that must be passed with a score of 70% or higher to successfully and fully complete the course.

Prerequisites

This course is intended for programmers who are interested in adding Java to their skills. The students should be familiar with object-oriented principals and the concept of object-oriented programming.

Meet the expert

Gene Van Sant

Gene Van Sant has over two decades of experience as a software/systems implementer and solutions integration architect. He has experience as a contractor and maintains instructor certifications from IBM and others. Gene balances his career between implementing and automating full blown real world solutions and teaching classes/workshops on emerging technologies and products. This allows Gene to gain valuable extensive real world experience while also staying ahead of the wave with cutting-edge expertise.

Video Runtime

128 Minutes

Time to complete

168 Minutes

Course Outline

Overriding Methods

Overriding Methods (33:16)

• Introduction (01:03)
• Overriding Methods (03:11)
• toString() (01:06)
• toString() in Object (00:59)
• Overriding toString() (00:30)
• Demo:Overriding (06:34)
• Memory review (12:32)
• Comparing Objects (01:40)
• Using == vs. equals(..) (01:06)
• Demo:Primitives & References (04:29)
• Summary (00:02)

Overriding Equals (29:32)

• Introduction (00:15)
• Overriding equals(..) (01:35)
• Complex Comparisons (01:31)
• equals(..) Example (02:05)
• Hashcodes:Overview (05:02)
• hashCode() (01:12)
• Demo:Hashcodes (03:12)
• Overriding hashCode() (01:11)
• hashCode() Example (00:17)
• @Override Annotation (01:12)
• Demo:Equivalency (11:02)
• Summary (00:53)

Exception Hierarchy

Exceptions (29:58)

• Introduction (01:07)
• What is an Exception (02:11)
• Benefits (01:57)
• Exception Processing:Overview (04:00)
• The Exception Class (01:51)
• How to Work With Exceptions (00:41)
• Example Exception Handling (00:57)
• try-catch-finally Statement (01:50)
• Flow of Program Control (01:01)
• Demo:Exception Processing (14:16)
• Summary (00:02)

Exception Hierarchy (35:23)

• Introduction (00:15)
• Exception Hierarchy (01:37)
• Checked Exceptions (01:16)
• Unchecked Exceptions (01:08)
• Coding TIps - Exception Types (01:16)
• Catching Multiple Exceptions (01:48)
• Specifying Thrown Exceptions (01:04)
• Rethrowing Exceptions (00:39)
• Chaining Exceptions (01:06)
• Creating your Own Exception (01:51)
• Demo:Exceptions (04:33)
• Demo:Create your Own Exception (10:12)
• Assertions (00:52)
• Assertion Example (00:54)
• Demo:Assertions (05:28)
• Summary (01:18)