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resize JTable

allelopath
allelopath asked
on
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Last Modified: 2013-11-23
In this example, when the user grabs the right edge of the frame and increases the size of the frame, the table size stays the same. How can it be coded so that the table size increases with the frame?

package tableStretch;

import java.awt.BorderLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ScrollPaneConstants;
import javax.swing.UIManager;
import javax.swing.WindowConstants;
import javax.swing.border.Border;
import javax.swing.table.DefaultTableModel;

/**
 * JPanel with JTable
 */
public class MyPanel extends JPanel {

	private JTable jTable;

	private DefaultTableModel defaultTableModel;

	private String[] columnNameArray = {"One", "Two", "Three"};

	private Object[][]  dataArray = { 
			{ "", "", ""},
			{ "", "", ""},
			{ "", "", ""},
			{ "", "", ""},
	};

	/**
	 * constructor
	 * 
	 */
	public MyPanel () {

		super();

		defaultTableModel = new DefaultTableModel(dataArray, columnNameArray);

		jTable = new JTable (defaultTableModel); 

		setLayout();

		setListeners();

	}

	/**
	 * set layout of components
	 */
	public void setLayout() {

		jTable.setFillsViewportHeight(true);

		JScrollPane jScrollPane = new JScrollPane(jTable);
		jScrollPane.getViewport().setPreferredSize(jTable.getPreferredSize());

		Border loweredbevel = BorderFactory.createLoweredBevelBorder();
		jScrollPane.setBorder(loweredbevel);

		jScrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED);

		this.add(jScrollPane, BorderLayout.CENTER);
	}

	/**
	 * set listeners
	 */
	public void setListeners() {

	}

	/**
	 * @return defaultTableModel
	 */
	public DefaultTableModel getDefaultTableModel() {
		return defaultTableModel;
	}


	/**
	 * 
	 * @param defaultTableModel
	 */
	public void setDefaultTableModel(DefaultTableModel defaultTableModel) {

		this.defaultTableModel = defaultTableModel;
		jTable.setModel(defaultTableModel);

	}

	/**
	 * 
	 * @param args
	 */
	public static void main(String[] args) {

		try{
			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
		}
		catch (Exception e){
			e.printStackTrace();
		}

		final MyPanel jPanel = new MyPanel();
		final JFrame frame = new JFrame();
		frame.add(jPanel, BorderLayout.CENTER);
		frame.setTitle("My Panel");
		//		frame.setPreferredSize(new Dimension(500, 250));
		frame.addWindowListener(new WindowAdapter(){
			@Override
			public void windowClosing(WindowEvent e) {
			}
		});

		frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
		frame.setLocation(300, 200);
		frame.pack();
		frame.setVisible(true);

	}

}

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