Learn library usage and classpaths in Java.
- [Instructor] Computer languages…such as Java, C++, and Python,…all have ecosystems.…The ecosystems contain Libraries that provide…functionality that is not included…within the core language.…Java has a particularly rich ecosytem.…Part of gaining proficiency with a language…is learning how to use its ecosystem.…In Java, most Libraries are distributed…as Java archive files, known by their extension…J-A-R.…
Jar files may or may not contain source code.…There are distinct differences between…using Libraries at compile time…and using Libraries at run time.…It is relatively easy to use Libraries at compile time,…and IDE's, such as IntelliJ,…provide assistance for using Libraries.…It is more difficult to use Libraries at run time,…particularly when your code will be installed…into a server,…or a UI such as an Ant or a device,…or a cloud-based application.…
Some of the difficulties include…ensuring that Libraries are installed…in correct locations, ensuring that your code…can access Libraries, and resolving conflicts…between different versions of Libraries…
Author
Released
2/1/2017- The IMQAV model
- Downloading software
- Installing and setting up a Java coding environment
- Mock tests
- Code coverage
- Using windows, views, and modes in IntelliJ IDEA
- Creating classes and attributes
- Creating constructors
- Casting variables
- Matching literals with regular expressions
- Libraries
- Regular expressions
- Design patterns
Skill Level Intermediate
Duration
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Introduction
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Welcome1m 3s
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Using the exercise files1m 8s
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1. Getting Started with Java
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JVM languages1m 8s
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Downloading software3m 10s
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Installing software6m 57s
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2. Test-Driven Development
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Introduction to testing2m 15s
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Types of tests5m 54s
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Mock tests2m 15s
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Code coverage1m 47s
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3. IntelliJ IDEA
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Windows, views, and modes5m 15s
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Projects5m 47s
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Editor basics5m 36s
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Refactoring2m 38s
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Code execution1m 23s
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Debugging2m 4s
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4. Object-Oriented Java
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Object-oriented principles1m 20s
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Primitives59s
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Strings4m 12s
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Classes and attributes4m 13s
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Classes and methods3m 46s
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Classes and constructors2m 44s
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Exception handling3m 27s
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Enumerations5m 26s
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Casting3m 19s
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Generics1m 40s
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Annotations1m 59s
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Program flow control9m 43s
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5. Libraries
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Install and use libraries5m 15s
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gson2m 40s
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StringUtils1m 56s
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6. Regular Expressions (Regex)
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Literals4m 23s
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Predefined character classes1m 28s
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Regex quantifiers2m 40s
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Regex boundaries and anchors1m 26s
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Regex examples1m 55s
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7. Reflection
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Introduction to reflection1m 17s
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Introspect fields2m 50s
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Introspect methods2m 51s
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Introspect constructors3m 15s
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Introspect annotations2m 5s
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8. Design Patterns
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Singleton patterns2m 19s
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Decorator patterns3m 23s
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Visitor patterns2m 32s
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9. Applying Data Science
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Magic squares algorithm5m 11s
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Adjacency matrix5m 42s
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Magic characteristics1m 35s
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Building magic cubes5m 31s
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Conclusion
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Next steps53s
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Video: Install and use libraries