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Java 11+ Essential Training

Create multiple catch blocks

From the course: Java 11+ Essential Training

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  • Course details

    If you want to build applications for mobile devices, desktop computers, or the web, you need to know Java. This course provides the foundation for learning how to program with the most recent Long-Term Support (LTS) release, Java SE 11, and more recent versions. David Gassner shows how to install Java and the IntelliJ IDEA Community Edition IDE and start working with variables, data types, and other critical language components. He also helps you control program flow with conditional logic and loops, store data with Java collections, and understand how Java implements object-oriented coding principles such as inheritance.

    Instructor

    • Click here to view David Gassner’s instructor page

      David Gassner

      Managing Staff Instructor, LinkedIn Learning Technology Library at LinkedIn

      • David Gassner is the author of over 60 video-based technical training courses for software developers.

        David is a senior staff instructor who specializes in development platforms and programming languages including Android and Java. He currently creates training content for Android developers and content that covers multiple programming languages including Java, C#, Visual Basic, and Go. He was formerly the president and founder of Bardo Technical Services, an Adobe Solutions Network Training Provider. As an Adobe Certified Expert, he wrote courseware for Adobe and delivered extensive training on Flex, ColdFusion, Dreamweaver and Flash. He was the author of Wiley's Flex 3 Bible and Flash Builder 4 and Flex 4 Bible. He most recently designed and developed Audio Cues—an Android app for running sound in live performances—which is available in the Google Play store.

    Skills covered in this course

  • What kind of software can you create?

    - [Instructor] When you start working with structured exception handling, you quickly discover that not all exceptions are equal. The exception class is the super class for a whole bunch of different kinds of exceptions, and when you trigger an exception, you can find out very quickly what kind of exception you got. In this starting code, I'm going to encounter a null pointer exception, that's because I have an object that I've set as null, and then I'm trying to access one of its members that doesn't exist, and so when I run this code, I hit this catch block and I see the result of this printStackTrace call. Because I handled the exception, this code survives and I get to the last executable line, but you can use a structure called multi-catch where you have distinct catch blocks for each different kind of exception. Let's say for example that in this catch block, you wanted to make it specific to null pointers. In…

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