Handling Errors: Advanced Topics in Exceptions

Java JDK 9+    |    Intermediate
  • 6 videos | 43m 21s
  • Includes Assessment
  • Earns a Badge
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While handling exceptions is enough for most programmers, if you are building an app that other developers consume, you should know how to throw exceptions proactively and the various options available in Java in this regard. This is precisely the focus of this course. Learn about throwing an exception based on your conditions in a Java program and how nested function calls influence exception throwing and handling. You'll get a chance to explicitly throw an exception using the throw keyword, add complexity to your code by throwing different exceptions based on different conditions, and build a customized Exception class to define an exception that is not covered by Java's library. Having finished this course, you'll have the knowledge to throw exceptions and run your program without breaking its flow.

WHAT YOU WILL LEARN

  • discover the key concepts covered in this course
    use the throw keyword in Java to explicitly throw an exception when the state of the program does not match your own set of valid conditions
    invoke multiple exceptions in your program based on different error conditions
  • throw and handle exceptions at various levels when nested function calls are involved
    define your exception class by extending Java's built-in Exception
    summarize the key concepts covered in this course

IN THIS COURSE

  • Playable
    1.  Course Overview
    2m 25s
    In this video, you’ll learn more about your instructor and this course. In this course, you’ll learn how you can throw an exception based on your own set of conditions in Java. You’ll employ the throw keyword to… FREE ACCESS
  • Playable
    2.  Throwing Exceptions Proactively
    11m 37s
    In this video, you’ll learn about proactively throwing an exception. You’ll see this is especially useful if you build interfaces that are consumed by other developers. In this demo, you’ll see there's a new source… FREE ACCESS
  • Locked
    3.  Throwing Multiple Exceptions
    10m 14s
    In this video, you’ll watch a demo. In this demo, you’ll build upon the last demo and define a function that can throw two exceptions. To start off, you’ll clear out the main function, and then in the inputs, beyond the… FREE ACCESS
  • Locked
    4.  Chaining Exceptions
    8m 36s
    In this video, you’ll watch a demo. In this demo, you’ll see it’s possible to spread the handlers across the call stack methods. You’ll leave the validateStudent function as is, but you’ll modify the intermediateFunction.… FREE ACCESS
  • Locked
    5.  Defining Custom Exceptions and Errors
    8m 36s
    In this video, you’ll watch a demo. In this demo, you’ll see that you might need to define your own exception classes. You’ll learn how to do that here. Onscreen, you’ll see a new class within your project called… FREE ACCESS
  • Locked
    6.  Course Summary
    1m 52s
    In this video, you’ll summarize what you’ve learned in this course. In this course, you’ve learned how to throw exceptions proactively and the various options available in Java in this regard. You learned how to throw an… FREE ACCESS

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