In this tutorial, I demonstrate how to instantiate and use objects by example. We use a JFrame object to create a window, and add a JLabel object to it.
You should probably add: window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // ensures program ends when we close window)
I also mention that Strings are actually objects (as a convenience, Java allows us to instantiate strings by using a string literal, that is, text in quotes).
You can use objects through what is called their interface, in other words, the methods that they make visible to us as users of the object. You can see all of the methods available via Eclipse's code assist feature by typing the object variable name followed by a "." (you can also bring up code assist by pressing ctrl + space).
Nesta página do site você pode assistir ao vídeo on-line Java Programming: 8 - Using Objects, creating a window duração hora minuto segundo em boa qualidade , que foi baixado pelo usuário CodeMonkeyCharlie 03 Junho 2011, compartilhe o link com seus amigos e conhecidos, no youtube este vídeo já foi visto 54,419 vezes e gostou 534 espectadores. Boa visualização!