Explain the key features of event driven programs. P1: Explain the key features of event driven programs. 2022-12-26

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"A Very Old Man with Enormous Wings" is a short story written by Gabriel García Márquez in 1955. It is a story that explores the theme of human nature and the way we treat those who are different from us.

The story begins with the arrival of a very old man with enormous wings in a small village. He is found lying in the mud near the beach, and is taken in by a poor couple who live on the outskirts of the village. Despite their poverty, they treat the old man with kindness and care for him as best they can.

However, the rest of the village is not so kind. They are fascinated by the old man and his wings, and they flock to the couple's house to see him. Some people see him as a freak, and others see him as a miracle. But no one knows for sure what he is or where he comes from.

The villagers' curiosity turns into greed and exploitation as they try to make money off of the old man. They charge people to see him and even try to sell him to a circus. The old man is mistreated and humiliated, and his health begins to deteriorate.

As the story progresses, it becomes clear that the old man is not a freak or a miracle, but simply a human being who is different from the rest of the villagers. He is a symbol of the way we treat those who are different from us, and the story serves as a commentary on the way we often fear and mistreat those who are different from us.

Ultimately, the old man's wings serve as a metaphor for the way we often try to label and categorize people, rather than seeing them as individuals with their own unique stories and experiences. The story is a reminder to be kind and understanding towards those who are different from us, and to see them as human beings rather than as objects of curiosity or exploitation.

Event driven program key features Essay Example

explain the key features of event driven programs

It then identifies what button was pressed and then executes the code associated with that trigger. Create onscreen help to assist the users of a computer program. The code for each part does not rely on the other parts code. . Evans, Alexander de Lahunta International Business Strategy Alain Verbeke International Law Anders Henriksen Multivariate Data Analysis: Pearson International Edition J. If any event occurs, programmers should trigger the corresponding function.

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P1: Explain the key features of event driven programs.

explain the key features of event driven programs

One more example that the Windows operating system can be referred to as an event-driven application, is the keyboard. Software systems are divided into four major functions. There are five key characteristics of event driven programming and these are the event, the form, the event handler, trigger functions and the event loops. Trigger functions A trigger functions is an event that runs when a certain event happens meaning when something happens then the trigger function will response causing another vent to occur. Parameter Passing: Parameters are needed for a pre defined function in order for it to work.

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P1

explain the key features of event driven programs

All the objects on a computer have a range of trigger function. We also recommend contacting experienced writers who are well versed in the topic to avoid mistakes in terms. Key Features And Characteristics Of Event-driven Programming Below we will look at the features of event-driven programming that make it stand out from other programming methods. The only way they can be destroyed is when the program ends as they are global. Keyboard events, Pressing any key on the keyboard will have some sort of response for e.

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Form

explain the key features of event driven programs

This can have to do with our washing machine, microwave etc J. There are a lot of key features that are used in event driven program. Programs with event driven language codes can run little programs with only the code itself so it is fast than flow driven languages because a programmer needs to complete the program before it can be tested. All programs take the stricter of input, process to output. If you write all your program code in one part then it will not be efficient as some code may have to change which will affect other code. Event loop An event loop is a part of a program that waits or dispatches events or messages in a program. The software will only operate the action only if an event occurs, for example if a button was pressed then the event handler would response to it can react to what button was pressed.

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Programming: Key Features of Event Driven Programs P1

explain the key features of event driven programs

This is known as ParameterPassing. A local variable is a variable that is declared in the body of a method that you make. The code which runs when I press the button is in the part which is boxed in red. Another example of this is the fact that you can drag and drop most things on the operating system, you can drag applications and files to the recycling bin to dispose of, or you can drag an application or file to any destination on your computer, such as the documents folder in your hard drive. Add Your Comment We are very interested to know your opinion Comment.

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Event driven Programming: Key Features of Event Driven Programs. (P1)

explain the key features of event driven programs

An Activated is allows an event that is used by a form. Service oriented Service oriented is a software and software architecture pattern based on certain parts of software providing different networking application functionality as services to other applications. Nowadays most things use Event programming even non-graphical applications such as fire alarm. This could be an action caused by a condition that has been met or not met, like an if statement. As a reminder, we provide - with our experts, all numbers become easy to understand. . Service oriented is used a by networked software applications so that other applications can reuse the code that was use by the first networked software applications.

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Event

explain the key features of event driven programs

The third step is the check function which returns the results of the poll to the event loop. Furthermore there is a tye of way you write stuff to get input back. The programmer would have to set the event that would happen after a period of time. Event driven programming allows other hardware to interact with the application. The example above is a program that can draw a line. Form events can trigger event handlers for object that are on the form.

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Event driven Programs Key Features

explain the key features of event driven programs

It finds the character at position 0. For example, dimming the screen is a time driven program as after a certain amount of time, the screen will dim, if set to. A graphical user interface also plays a major part in event driven programs as a lot of event driven programs contain various controls each with its own events that enable the user to communicate and interact with the program. Event handlers: This feature is a form of interaction. Object-Oriented Programming Events can be user-generated events that arise due to user actions, system events in the operating system, and software events generated by the program.

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