Create and set a gridbag layout and how to set gridbag constraints

   

import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;

import javax.swing.JButton;
import javax.swing.JFrame;

public class Main {
  public static void main(String[] argv) throws Exception {
    JFrame frame = new JFrame();
    Container container = frame.getContentPane();

    GridBagLayout gbl = new GridBagLayout();

    container.setLayout(gbl);

    // Place a component at cell location (1,1)
    GridBagConstraints gbc = new GridBagConstraints();
    gbc.gridx = 1;
    gbc.gridy = 1;
    
    JButton component = new JButton("a");
    
    // Associate the gridbag constraints with the component
    gbl.setConstraints(component, gbc);

    container.add(component);

    frame.pack();
    frame.setVisible(true);
  }
}

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Create and set a gridbag layout and how to set gridbag constraints : GridBagLayout « Swing JFC « Java

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