this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } void reset() { m_totalTf.setText(INITIAL_VALUE); } String getUserInput() { return m_userInputTf.getText(); } void setTotal(String newTotal) { m_totalTf.setText(newTotal); } void showError(String errMessage) { JOptionPane.showMes...
David Ausman wrote:I have a question that's come up while I'm learning Swing and I want to really understand what’s happening with this line of code where frame is of type JFrame and mainPanel is of type JPanel. I can make it work but I don’t really understand why it works. ...
So with public void Component.setBounds(int x, int y, int width, int height) you specify where your component is placed and how many pixel it is wide and high. Here's an example: import java.awt.Dimension; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPa...
3 change JPanel after clicking on a button 0 Java GUI - Changing inside JPanels dynamically 0 How will I change the contents of the panel with a click of a button in GUI? 2 Changing layout/frame in response to a button press 1 Changing panels when a button is...
I am learning about JPanel and GridLayout , this snippet of code will produce a simple JPanel with 6 buttons package testing; import java.io.*; import java.util.*; import java.security.*; import javax.xml.bind.DatatypeConverter; import java.lang.*; import java.awt.*; import javax.swin...
recently I've started to explore the Officebean Library, in other words I've tried to get an simple OOoBean example running. Unfortunately I didn't get anything going. First of all I've tried to build a Swing JFrame with a JPanel and the bean inside, but nothing was shown inside the...
.JFrame;importjavax.swing.JPanel;publicabstractclassGUIextendsJFrameimplementsMouseListener{privatestaticfinallongserialVersionUID=1L;intdice1, dice2, dice3, dice4, dice5;privateJButton roll;privateJButton nextPlayer;privateJButton bDice1;privateJButton quit;privateJButton use;privateJPanel panel;...
public class piPhoto { static int mostRecent = 0; static int dispNum = 0; static int lastDisp = 0; static JPanel picPanel = imgDisp.imgDisp(dispNum); static JFrame frame = new JFrame("Pi Photography"); static JPanel cornerPanel = new JPanel(); static JPanel bottomPanel = ...
// Create some method like init() which binds PlainDocument to JTextField // and Actions to JButtons or JMenuItems } I see some people disagree with extending JFrame or JPanel. I don't. Works for me. Also, use LayoutManagers. GridBagLayout is very powerful. If you use it, define ...
import java.awt.*; import javax.swing.*; import java.awt.event.*; import java.awt.Dimension; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.SwingUtilities; public class MainframeTwo extends JPanel ...