[Practice! ] Introduction of JFrame (explaining up to screen creation)

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. What is JFrame?

--JFrame is one of the Swing classes, and is a class for creating "a central window with an outer frame ".

3. Install Swing Designer

1. Start Eclipse and select [Help] → [Install New Software].
2. Click the Add button.
3. Enter ʻOxygenfor the name andhttp://download.eclipse.org/releases/oxygen` for the location.
4. Check [General Tools] → [Swing Designer] and click Next.
5. Check Swing Designer and click Next.
6. Select I accept the terms of the Terms of Use and click the Finish button.
7. After software installation is complete, restart.

4. Executing JFrame

1. After restarting Eclipse, select [New] → [Java Project].
2. Enter TestFrame as the project name, select JavaSE-1.8 to use the execution environment JRE, and click the Finish button.
3. Select [New (N)] → [Other].
4. Select [WindowBuilder] → [Swing Designer] → [JFrame] and click Next.
5. Enter test1 in the package and Test1 in the name and click Next.
6. Select [Run (R)]-> [Run (S)]-> [Java Application].
7. Success if the screen is displayed like the image.

5. Related

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