gridbaglayout

package qwer; import java.awt.Button; import java.awt.Font; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.ButtonGroup; import javax.swing.JCheckBox; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JRadioButton; public class wenjuan { public static void main(String[] args) { JFrame jf=new JFrame(); jf.setSize(550,650); jf.setLocation(550,100); /** * GridBagLayout（网格布布局）： * 允许网格中的组件大小各不相同，允许一个组件跨越一个或多个网格。 * 使用GridBagLayout的步骤： *

When I try to align my component it goes either left side or right side. So I just want the solution to get rid of this problem, and also tell me how set the size of the panel as 400 x 350 pixel. Here is my code.... titleLabel and ResultLabel should be aligned in center public TimeGui() { layout = new GridBagLayout(); setSize(400, 350); //**Its not working** setBackground(Color.LIGHT_GRAY); setBorder(BorderFactory.createLineBorder(Color.BLACK)); setBorder(new TitledBorder(new EtchedBorder(), "Time Conversion") ); setLayout(layout); layoutConstraints = new GridBagConstraints(); textField1 = new

I am implementing browser kind of project and I am getting an exception. import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.GridBagConstraints; import java.awt.Insets; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.SwingUtilities; import chrriis.dj.nativeswing.swtimpl.NativeInterface; import chrriis.dj.nativeswing.swtimpl.components.JWebBrowser; public class WebPageDisplay extends JPanel{ public WebPageDisplay() { super(new BorderLayout()); try{ JPanel webBrowserPanel = new JPanel(new BorderLayout()); // webBrowserPanel.setBorder

I would like to be able to have three JPanels p1 p2 and p3, and have them lay out like so: I have been playing around with FlowLayout, BoxLayout etc but I'm not really sure if I am heading in the right direction. I am quite new with Java so I don't know what does what if I'm quite honest. I like how BoxLayout works, resizing the panels, but I would like to be able to give it some sort of width attribute. I am not using a visual designer for this, this is my window code at the moment: private void initialize() { Dimension dimensions = Toolkit.getDefaultToolkit().getScreenSize(); frame = new

In the following GridBagLayout code, I'm expecting the specified minimum size of JButton btn2 to be respected when the JFrame is resized to be made smaller. But when I make the JFrame smaller, the btn2 gets smaller than its minimum size and then vanishes. Can someone point me in the right direction of what I'm doing wrong? Maybe I have to set the minimum size of the JPanel that contains the buttons? Any help is appreciated, thanks! JFrame frame = new JFrame(); frame.setSize(400,300); frame.setLocationRelativeTo(null); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JPanel panel = new

I have created some textfields from which i want to use the user-input. I have read that i should use a documentlistener, but i have some difficulty implementing it the right place i think. In the code i am trying to implement it to the textfield tf1. The input im should get is to be parsed to a double so i can do some math calculation on it. Here is my code where i try to implement it. import java.awt.ComponentOrientation; import java.awt.Container; import java.awt.Dimension; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.event.ActionEvent; import java.awt

Is there an easy way of locking the aspect ratio of a GridLayout component in Java Swing ? Or should this be done on the JPanel containing that layout ? trashgod GridLayout effectively ignores a component's preferred size, but you can control the aspect ratio of whatever is drawn in paintComponent() , as shown in this example . The rendered shape remains circular (1:1 aspect), while (nearly) filling the container in the narrowest dimension. Resize the frame to see the effect. Addendum: For example, I added N * N instances of CirclePanel to a GridLayout below. import java.awt.*; import java.awt