Learn to create constructors in Java.
- [Instructor] Constructors enable objects…to create instances of a class…using the constructor for that class.…The simplest constructor to write…is no constructor at all.…If you don't write a particular constructor,…then your class will inherit…the default no argument constructor…from the class object.…In this class Triangle,…we're creating a constructor,…public Triangle,…that accepts three arguments:…a base, a height, and an includedAngle.…
Since the purpose of this class…is only to illustrate the use of constructors,…we're not going to include…any calculation methods.…Notice that we're using the keyword,…or the modifier, protected.…This indicates that we intend…that the class Triangle…be used for inheritance.…The class RightTriangle extends Triangle.…If we highlight the constructor for RightTriangle…and we comment it out…by pressing Control + Forward Slash,…we receive an error message.…
If we highlight the class,…we see there is no default constructor available…in com.yourname.constructors.Triangle.…What this message is telling us,…
- 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
- Regular expressions
- Design patterns
Skill Level Intermediate
Java: Database Integration with JDBCwith David Gassner2h 51m Intermediate
NumPy Data Science Essential Trainingwith Charles Kelly3h 54m Intermediate
1. Getting Started with Java
2. Test-Driven Development
3. IntelliJ IDEA
4. Object-Oriented Java
6. Regular Expressions (Regex)
8. Design Patterns
9. Applying Data Science
- Mark as unwatched
- Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.Cancel
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.