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Java 8 Essential Training

Using Java operators

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.

    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

  • Welcome

    - I've already used a number of Java's operators in my examples, but I'll take a moment now to go through them in detail. Java syntax is based on C. It's a C-style language. And so it uses most of the same operators that you'll find in most C-style languages, including C, C++, C#, JavaScript, and so on. There are various types of operators. The equality operators are used to compare values to each other, assignment operators do exactly what it says, assign values, and there are mathematical operators and logical operators. Here are some of the most common assignment and math operators. When you declare a variable in Java you always start with the data type followed by the name of the variable. But you don't have to immediately assign a value. The default value will depend on whether the variable is a primitive or an object. But if you want to assign a value, you use the single "=" character as the assignment operator. The data type and variable name go on the left, and the value on…

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Contents