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Java 8 Essential Training

Working with character values

From the course: Java 8 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 Java SE (Standard Edition), so you can build your first apps or start exploring the language on your own. Author David Gassner shows how to install Java and the IntelliJ IDEA IDE, and start working with variables, data types, keywords, and other critical language components. He also helps you control program flow with conditional logic and loops, store data with the Java Collections Framework, and understand how Java implements object-oriented coding principles such as inheritance and polymorphism.


    • 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

  • Welcome

    - Java distinguishes between characters and strings. A character is a primitive data type, and it consists of just a single character. A string is a complex object, and can consist of many characters. I'll show you how to to declare and initialize characters here, and I'll add code to the main method to declare a single variable with the data type of char, C-H-A-R, a name of c1, and a value of '1', wrapped in single quotes. Literals for characters are always wrapped in single quotes, while literals for strings are wrapped in double quotes. I'll duplicate that line of code a couple of times. And then I'll change the names of the variables, to c2 and c3. And I'll change their equivalent values. Then, I'll output these values. I'll use System.out, and I'll start with the label of Char 1, and I'll append c1. I'll duplicate that a couple of times, and change the labels and values. And I get the values as expected. You can also declare a character using a literal that's a Unicode escape…

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