MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.HierarchyEvent;
import java.awt.event.HierarchyListener;

import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JSplitPane;

public class MainClass {
    public static void main(String args[]) throws Exception {
        JFrame vFrame = new JFrame("Vertical Split");
        vFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JComponent leftButton = new JButton("Left");
        JComponent rightButton = new JButton("Right");
        final JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
        splitPane.setOneTouchExpandable(true);
        splitPane.setLeftComponent(leftButton);
        splitPane.setRightComponent(rightButton);

        ActionListener oneActionListener = new ActionListener() {
            public void actionPerformed(ActionEvent event) {
                splitPane.resetToPreferredSizes();
            }
        };
        ((JButton) rightButton).addActionListener(oneActionListener);

        ActionListener anotherActionListener = new ActionListener() {
            public void actionPerformed(ActionEvent event) {
                splitPane.setDividerLocation(10);
                splitPane.setContinuousLayout(true);
            }
        };

        ((JButton) leftButton).addActionListener(anotherActionListener);

        HierarchyListener hierarchyListener = new HierarchyListener() {
            public void hierarchyChanged(HierarchyEvent e) {
                long flags = e.getChangeFlags();
                if ((flags & HierarchyEvent.SHOWING_CHANGED) == HierarchyEvent.SHOWING_CHANGED) {
                    splitPane.setDividerLocation(.75);
                }
            }
        };
        splitPane.addHierarchyListener(hierarchyListener);

        vFrame.add(splitPane, BorderLayout.CENTER);
        vFrame.setSize(300, 150);
        vFrame.setVisible(true);
    }

}