Create a Simple Window Using JFrame

Create the Application Class

Microsoft product screen shot(s) reprinted with permission from Microsoft Corporation.

Below the import statements goes the class definition that will contain our Java application code. Type in:

//Create a simple GUI window
public class TopLevelWindow {

}

All the rest of the code from this tutorial needs to go between the two curly brackets. The TopLevelWindow class is like the covers of a book; it shows the compiler where to look for the main application code.

• Reference the Graphical Components
• Create the Application Class
• The Function to Create the JFrame
• Add a JLabel to the JFrame
• The Application Entry Point
• Code Checkpoint
• Save, Compile and Run