First day of Swing

[Grish]

Hello everyone!
It's my first day of learing swing and i'm kinda lost already

i'm doing everything by the book, using NetBeans

and it's just not working =(

Can anyone help?


import java.awt.*;
import java.util.*;
import java.text.*;
import javax.swing.*;

public class SS {

Swing () Error "Invalid method declaration; return type required"

{
JFrame mySS = new JFrame();
mySS.setText("Pes app"); Error "Cannot find symbol; symbol method setText (java.lang.String, location : variable.mySS of type javax.swing.JFrame)
mySS.setSize (300,300);
mySS.show(); This Line is striked out
}




public static void main(String[] args) {

new SS ();
}
}

[goldest]

and it's just not working =(

Means what? Provide proper details.

Goldest

[Grish]

Ok

So I'm just tring to bring up a simple window with title.
on line Swing () it's telling me "Invalid method declaration"

on line mySS.setText("Pes app"); there is an error "Cannot find symbol"
and mySS.show(); is just striked out.



I'm so sorry for this type of question, but I'm just starting to learn.

[goldest]

on line Swing () it's telling me "Invalid method declaration"

Read : Defining Methods

on line mySS.setText("Pes app"); there is an error "Cannot find symbol"

Because there is no method called setText for JFrame

and mySS.show(); is just striked out.

They are deprecated methods. For more details : What "Deprecated" Means

Hope that helps,

Goldest

[Grish]

Thank you so much!

Huh...I guess my book is pretty outdated? Everything runs well for the author
Can I ask the last question, just to make sure, so what would I use instead of setText for title of the simple frame?


UPD: I got it! THANK YOU SO MUCH!
yay, i was going crazy there :D

[goldest]

so what would I use instead of setText for title of the simple frame?

See: setTitle

Goldest

[camickr]

Maybe you can start by using the Swing tutorial:

Trail: Creating a GUI With JFC/Swing: Table of Contents (The Java™ Tutorials)

[Grish]

Thanks guys.

I was really thrown off by this textbook, which I should ditch I guess :) It's extremely outdated

[loopsnhoops]

Sorry for late response but another way to create a JFrame is to make it a parent class which is done by: public class classname extends JFrame.
then you can add or set properties without have to specify the JFrame each time so you would do this like: super(title)

public class whatever extends JFrame{

public whatever(){

super("MY FIRST WINDOW);
setSize(400,400);
setVisible(true);

}

}

[goldest]

I was really thrown off by this textbook, which I should ditch I guess :) It's extremely outdated

Let the others know which book is this, so that they can avoid it if its not suitable for proper learning.

Goldest

[DarrylBurke]

Sorry for late response but another way to create a JFrame is to make it a parent class which is done by: public class classname extends JFrame.
then you can add or set properties without have to specify the JFrame each time ...

... which is a gross misuse of inheritance. Always favor composition over inheritance. Classes are extended for the purpose of enhancing or modifying behavior, not to save typing a variable reference name.

db