A program event refers to an action or occurrence that takes place within a computer program, such as a button click, mouse movement, or keyboard input. It is used to trigger specific actions or behaviors in the program.
Think of a program event like pressing a button on your phone. When you tap on an app icon, it triggers the event of opening that app and displaying its content. Similarly, in a computer program, different events can be triggered by user interactions or system processes.
Event Handler: An event handler is a block of code that responds to a specific program event. It is responsible for executing the desired actions when the associated event occurs.
User Interface (UI): The user interface refers to the visual elements and controls through which users interact with a computer program. Program events often occur as responses to user interactions with the UI.
Event-driven Programming: Event-driven programming is a programming paradigm where the flow of execution is determined by events and their handlers. It allows programs to respond dynamically to various events rather than following a predefined sequence of steps.
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