-1
How do I call a "class" of type jFrame for example from my main class? My jFrame has its own main that gives the true setVisible for it to appear, but I wanted to access this main of it from my main class , to be able to give setVisible by the main of it instead of I create an instance of such and give the setVisible by my class, because it loses frame design quality.
1
You have to instantiate the class JFrame and call the method setVisible(boolean b) with the true parameter.
import javax.swing.JFrame;
public class Main {
public static void main(String[] args) {
JFrame frame= new JFrame("PT Stack Overflow");
frame.setVisible(true);
}
}
If your goal is to inherit JFrame the procedure is just that instead of instantiating JFameyou instance your heiress class of JFrame:
import java.awt.*;
import javax.swing.*;
class MeuFrame extends JFrame
{
JLabel label;
// constructor
MeuFrame ( String titulo )
{
super( titulo ); // invoca o constructor de JFrame
setSize( 150, 100 );
// Ajusta o comportamento de fechamento do JFrame
setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
setLayout( new FlowLayout() );
label = new JLabel("PT Stack Overflow");
add( label ); // adiciona o JLabel ao JFrame
}
}
public class TestFrame2
{
public static void main ( String[] args )
{
MeuFrame frame = new MeuFrame("Esse é o meu frame!");
frame.setVisible( true );
}
}
0
Already got, to call the main of another class through its main class is :
Nomedaclasse.main(args);
-1
Well, if instantiating the class can access it, main class:
public static void main(String args[])
{
Aluno estudante = new Aluno();//Aluno é outra classe.
Was that your doubt?
No, like, jframe has its own main,
Browser other questions tagged java swing jframe
You are not signed in. Login or sign up in order to post.
That’s not how you call a window, it’s instantiating it and giving a setVisible.
– user28595
setVisible is built in the main of the window itself
– Dr.G
It depends on your application. If you’re using more than one Jframe, it’s a bad idea. The most common is Have only one Jframe, and other windows use Jdialog, and when opening Ubwindows, give a setvisible(false) in the frame to hide. That way, you don’t need to instantiate again. Don’t get me wrong, but this seems like a scam.
– user28595