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Java 8 Essential Training

Using mathematical operators and the Math class

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

    - Java supports the standard mathematical operators that you'll expect to see in all programming languages. But it also supports more complex operations using a special class called Math. I'm working in the Math project now and I've started by declaring two integer values. I'll add them together using code that's pretty intuitive. I'll declare another integer and I'll name it result1 and I'll get its value by adding intValue1 and intValue2 using the + operator. Then I'll output to the console and I'll use a label of "Addition: " and I'll append my result. I'll run that code and I'd get back an expected result. Now, I'm going to copy and paste these lines of code four times and I'm going to use four other operators. Then I'll change the operators that I'm using. I'll use the subtraction operator, the multiplication operator, the *, division which is a / and remainder which is a % character. Then I'll change the labels to match the operators and I'll run the code. For the first three…

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Contents