JFrame: setVisible(boolean visible) : JFrame « javax.swing « Java by API






JFrame: setVisible(boolean visible)

  
/*
 * Output:
 *  
 */

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class MainClass extends JPanel {

  public void paint(Graphics g) {
    Dimension d = this.getPreferredSize();
    int fontSize = 20;

    g.setFont(new Font("TimesRoman", Font.PLAIN, fontSize));
     
    g.setColor(Color.red);
    
    g.drawString("www.java2s.com", 10, 20);
  }

  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.getContentPane().add(new MainClass());

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(200,200);
    frame.setVisible(true);
  }
}
           
         
    
  








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32.JFrame: setLocationRelativeTo(Component c)
33.JFrame: setMaximizedBounds(Rectangle bounds)
34.JFrame: setSize(int width, int height)
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