What is Private Sub Button1 Click?

Private Sub Button1_Click is a procedure in Visual Basic (VB) or VB.NET that defines an event handler for a button named Button1. When the button is clicked, the code within this subroutine will execute. The Private keyWord indicates that this subroutine can only be accessed within the class it is defined in, encapsulating its functionality. This structure is commonly used in graphical user interface (GUI) programming to respond to user interactions.