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    <p>A Graphic environment is complex thing. No longer do you have the safety of fixed character width and heights, now you need to start dealing with a wider range of environmental factors (such as the width and height of the area you have to paint in...)</p> <p>To get start I would suggest you take a look at</p> <ul> <li><a href="http://docs.oracle.com/javase/tutorial/uiswing/" rel="nofollow noreferrer">Creating a GUI with Swing</a></li> <li><a href="http://docs.oracle.com/javase/tutorial/uiswing/painting/" rel="nofollow noreferrer">Performing custom painting</a></li> <li><a href="http://docs.oracle.com/javase/tutorial/2d/" rel="nofollow noreferrer">2D Graphics</a></li> </ul> <p>To cover the basics.</p> <p>In order to paint steps, we need to know (at least) three things.</p> <ol> <li>The number of steps to be painted...</li> <li>The width of each step</li> <li>The height of each step.</li> </ol> <p>This example calculates the width and height of the steps as a factor of the width and height of the container it's painting on.</p> <p><img src="https://i.stack.imgur.com/Enu0e.png" alt="enter image description here"><img src="https://i.stack.imgur.com/lvrTh.png" alt="enter image description here"><img src="https://i.stack.imgur.com/VDGqM.png" alt="enter image description here"></p> <pre><code>import java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import java.awt.EventQueue; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextField; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; public class SimpleSteps { public static void main(String[] args) { new SimpleSteps(); } public SimpleSteps() { EventQueue.invokeLater(new Runnable() { @Override public void run() { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) { ex.printStackTrace(); } JFrame frame = new JFrame("Testing"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(new TestPane()); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } }); } public class TestPane extends JPanel { private JTextField steps; private StairPane stairPane; public TestPane() { setLayout(new BorderLayout()); JPanel options = new JPanel(); steps = new JTextField(10); JButton create = new JButton("Create"); stairPane = new StairPane(); options.add(new JLabel("Step count: ")); options.add(steps); options.add(create); add(stairPane); add(options, BorderLayout.SOUTH); create.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { String value = steps.getText(); try { int stepCount = Integer.parseInt(value); stairPane.setStepCount(stepCount); } catch (NumberFormatException exp) { JOptionPane.showMessageDialog(TestPane.this, value + " is not a valid step count", "Error", JOptionPane.ERROR_MESSAGE); } } }); } } public class StairPane extends JPanel { private int stepCount = 0; public StairPane() { } @Override public Dimension getPreferredSize() { return new Dimension(200, 200); } @Override protected void paintComponent(Graphics g) { super.paintComponent(g); if (stepCount &gt; 0) { Graphics g2d = (Graphics2D) g.create(); int stepHeight = getHeight() / stepCount; int stepWidth = getWidth() / stepCount; for (int step = stepCount; step != 0; step--) { int width = stepWidth * step; int y = (stepHeight * step) - stepHeight; g2d.fillRect(0, y, width, stepHeight); } g2d.dispose(); } } private void setStepCount(int stepCount) { this.stepCount = stepCount; repaint(); } } } </code></pre>
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    1. POJava draw stairs using drawRect and using inputField for more stairs
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