Example
Assuming that you have successfully created a JFrame and that Swing has been imported...
You can import Swing entirely
import javax.Swing.*;
or You can import the Swing Components/Frame that you intend to use
import javax.Swing.Jframe;
import javax.Swing.JButton;
Now down to adding the Jbutton...
public static void main(String[] args) {
JFrame frame = new JFrame(); //creates the frame
frame.setSize(300, 300);
frame.setVisible(true);
//////////////////////////ADDING BUTTON BELOW//////////////////////////////
JButton B = new JButton("Say Hello World");
B.addMouseListener(new MouseAdapter() {
public void mouseReleased(MouseEvent arg0) {
System.out.println("Hello World");
}
});
B.setBounds(0, 0,frame.getHeight(), frame.getWidth());
B.setVisible(true);
frame.add(B);
////////////////////////////////////////////////////////////////////////////
}
By Executing/Compiling this code you should get something like this...
When the button is clicked... "Hello World" should also appear in your console.
