[Useful to remember !!!] Easy creation of inherited classes in Eclipse

1. Prior knowledge

-[Latest] How to build Java environment on Ubuntu

-[Even beginners can do it! ] How to create a Java environment on Windows 10 (JDK14.0.1)

-[Easy-to-understand explanation! ] How to use Java instance

-[Even beginners can do it! ] How to install Eclipse on Windows 10 (Java environment construction)

As prior knowledge, the contents of the above link are required.

2. Easy creation of subclasses from superclasses

1. Select [File (F)] → [New (N)] → [Class].
2. Click the Browse button.
3. Select the class you want to inherit and click the ʻOK` button.
4. Check the superclass and click the Done button.
5. Success if you can confirm the creation of subclass.

2. Easy creation of superclass from subclass

1. Right-click in the file you want to make a subclass and select [Refactoring (T)] → [Extract Superclass (T)].
2. Enter the superclass name and click the Done button.
3. Success if you can confirm the creation of subclass and superclass.

3. Bonus: Easy creation of System.out.println ()

1. Type sysout and press Ctrl + Space on your keyboard.
2. Success if you can confirm the creation of System.out.println ().

3. Related

-[Useful to remember !!!] Easy creation of constructor and getter / setter in Eclipse -[Even beginners can do it! ] How to write Javadoc -[Easy-to-understand explanation! ] How to use Java encapsulation -[Easy-to-understand explanation! ] How to use Java overload -[Easy-to-understand explanation! ] How to use Java inheritance [Override explanation]