Join David Gassner for an in-depth discussion in this video Defining and throwing a custom exception, part of Java Advanced Training.
As you get more comfortable working with exceptions and the Try/catch Block, it's useful to know…how to write your own custom exception classes and then use them in your code.…In this demonstration, which I'll do with the project throwing, I'll show you how to…create your own custom exception class and then how to throw it with the throw method.…In this version of my project, I have two text files, one with the text Right file, and…one with the text Wrong file.…My Main class doesn't have any real functional code in it yet, and I've moved all of the…code to actually read the contents of a file into a utility class which I've called MyFileReader.…
To read a file, I can now call the static readFile method of this class, and it will…open it, get its contents, and return the String.…I'll go back to my Main class, and my Main method, and I'll declare a String variable…named fileContents, and I'll get its value by calling the static method readFile from…MyFileReader, and I'll pass in the name of one of my text files.…
- Installing Java on Windows and Mac OS X
- Installing Eclipse
- Using new features such as simplified generics
- Working with advanced class structures (member, local inner, etc.)
- Using the Reflection API
- Navigating inheritance trees
- Managing unordered and ordered sets
- Peeking and polling with queues
- Testing and error handling
- Managing files and directories
- Working with I/O streams
- Next steps with Java
Skill Level Advanced
1. Getting Started
2. Java 7 New Features
3. Using Advanced Class Structures
4. Using the Reflection API
5. More of the Collections Framework
6. Testing and Advanced Exception Handling
Using the finally keyword5m 40s
7. Managing Files and Directories in Java 7
8. Working with I/O Streams
9. Working with Multi-threading
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