Join David Gassner for an in-depth discussion in this video Using mathematical operators and the Math class, part of Java 7 Essential Training.
- 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 operations and for the last one,…
Author
David Gassner
Released
7/24/2015- Understanding the history and principles of Java
- Installing Java, IntelliJ IDEA, and BlueJ
- Creating a Java project
- Working with variables, values, and expressions
- Working with object data types
- Building, comparing, and parsing strings
- Debugging and exception handling
- Creating loops and reusable code
- Passing arguments by reference or value
- Using simple and complex arrays
- Creating custom classes
- Understanding inheritance and polymorphism
- Managing files with Java libraries
- Documenting code with Javadoc
- Packaging classes in JAR files
Skill Level Beginner
Duration
Views
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Introduction
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Welcome59s
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Is this course for you?3m 22s
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Using the exercise files5m 5s
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1. What Is Java?
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The history of Java5m 57s
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Java syntax and compilation5m 26s
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2. Installing the Software
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Installing Java on Windows3m 49s
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Installing Java on OS X2m 50s
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Installing BlueJ1m 52s
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3. Getting Started
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Hello World5m 44s
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4. Working with Variables
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Converting numeric values5m 37s
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Using Java operators6m 11s
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5. Working with Objects
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Using the String class5m 5s
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Comparing string values5m 51s
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Parsing string values3m 13s
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Working with dates and times8m 35s
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6. Exception Handling and Debugging
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Debugging with IntelliJ IDEA5m 18s
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Throwing custom exceptions3m 19s
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7. Managing Program Flow
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Using the switch statement4m 51s
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Creating looping code blocks5m 23s
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8. Using Data Collections
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Using simple arrays6m 32s
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Using two-dimensional arrays4m 17s
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9. Creating Custom Classes
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Understanding encapsulation7m 19s
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Using constructor methods4m 56s
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10. Working with Inheritance
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11. Using Common Java Libraries
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12. Preparing a Java Application for Deployment
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Conclusion
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Next steps1m 37s
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Video: Using mathematical operators and the Math class