Here is the template for the Java TShirt order form, write in the if logic to calculate the price of an order.

TShirtOrderForm.java

package tshirt;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.*;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.ButtonGroup;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.SwingConstants;

public class TShirtOrderForm 
{
	public static void main(String[] args) 
	{
		EventQueue.invokeLater(new Runnable() 
		{

			public void run() 
			{
				TShirtOrderFrame tsf = new TShirtOrderFrame();
				tsf.setTitle("T-Shirt Order Form");
				tsf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
				tsf.setVisible(true);
				
			}

			

		});
	}
}

class TShirtOrderFrame extends JFrame 
{
	public TShirtOrderFrame() 
	{
		TShirtOrderPanel tsp = new TShirtOrderPanel();
		add(tsp);
		pack();
	}
}

class TShirtOrderPanel extends JPanel implements ActionListener 
{
	// Arrays used for the values in the combo box
	private String[] sizes = { "S", "M", "L", "XL" };

	private String[] colors = { "Black", "White", "Red", "Pink", "Green",
	"Yellow" };
	private String[] quantities = { "1", "5", "10", "20", "100" };
	// Save the IWriteCodeStamp.jpg in the root
	// folder of your project
	private ImageIcon shirtImage = new ImageIcon("IWriteCodeStamp.jpg");
	// Declare all the controls that will be on the order form.
	private JLabel imageLabel;
	private JRadioButton mensRadioButton;
	private JRadioButton womensRadioButton;
	private JComboBox sizeCombo;
	private JComboBox colorCombo;
	private JLabel quantityLabel;
	private JLabel labelTitle;
	private JComboBox quantityCombo;
	private JCheckBox baseballSleeves;
	private JButton calcButton;
	private JLabel resultLabel;
	private JLabel sizeLabel;
	private JLabel colorLabel;

	public TShirtOrderPanel() 
	{
		// Instantiate all the controls
		imageLabel = new JLabel(shirtImage);
		mensRadioButton = new JRadioButton("Mens");
		womensRadioButton = new JRadioButton("Womens");
		sizeCombo = new JComboBox(sizes);
		colorCombo = new JComboBox(colors);
		quantityLabel = new JLabel("Quantity");
		labelTitle = new JLabel("TShirt Orderform");
		quantityCombo = new JComboBox(quantities);
		baseballSleeves = new JCheckBox("Baseball Sleeves?");
		sizeLabel = new JLabel("Size:");
		colorLabel = new JLabel("Color:");
		calcButton = new JButton("Total");

		resultLabel = new JLabel("");

		// Pretty up the labels
		labelTitle.setFont(new Font("Impact", Font.BOLD, 28));
		labelTitle.setHorizontalAlignment(SwingConstants.CENTER);
		resultLabel.setFont(new Font("Impact", Font.PLAIN, 16));
		resultLabel.setHorizontalAlignment(SwingConstants.CENTER);

		// Add the radio buttons to a button group so only one
		// can be selected at a timemensRadioButton.setSelected(true);
		ButtonGroup dept = new ButtonGroup();
		dept.add(mensRadioButton);
		dept.add(womensRadioButton);

		// Arrange the controls onto the screen
		this.setLayout(new BorderLayout());
		this.add(labelTitle, BorderLayout.NORTH);
		this.add(imageLabel, BorderLayout.WEST);

		JPanel centerPanel = new JPanel();
		this.add(centerPanel, BorderLayout.CENTER);
		centerPanel.setLayout(new BoxLayout(centerPanel, BoxLayout.Y_AXIS));
		JPanel deptPanel = new JPanel();

		deptPanel.add(mensRadioButton);
		deptPanel.add(womensRadioButton);

		JPanel comboPanel = new JPanel();
		comboPanel.add(sizeLabel);
		comboPanel.add(sizeCombo);
		comboPanel.add(colorLabel);
		comboPanel.add(colorCombo);

		JPanel quantPanel = new JPanel();
		quantPanel.add(quantityLabel);
		quantPanel.add(quantityCombo);

		JPanel sleevesPanel = new JPanel();
		sleevesPanel.add(baseballSleeves);
		sleevesPanel.add(calcButton);

		centerPanel.add(deptPanel);
		centerPanel.add(comboPanel);
		centerPanel.add(quantPanel);
		centerPanel.add(sleevesPanel);
		centerPanel.add(Box.createGlue());
		add(resultLabel, BorderLayout.SOUTH);

		// Make button responsive to clicks
		calcButton.addActionListener(this);

	}

	@Override
	public Dimension getPreferredSize() 
	{
		return new Dimension(500, 300);
	}

	public void actionPerformed(ActionEvent arg0) 
	{
		boolean mens = mensRadioButton.isSelected();
		boolean womens = womensRadioButton.isSelected();
		boolean sleeves = baseballSleeves.isSelected();
		String size = sizeCombo.getSelectedItem().toString();
		String color = colorCombo.getSelectedItem().toString();
		int quantity = Integer.parseInt(quantityCombo.getSelectedItem()
				.toString());
		// Use decision statements to calculate the total for the
		// Women's Small: 12.00
		// Women's Medium: 13.00
		// Women's Large: 14.00
		// Women's XLarge: 15.00
		// For men's sizes add 1.00

		// For baseball sleeves add 2.00
		// For the color red add 1.00
		// If 5 shirts are ordered a 5% discount is applied
		// if 10 shirts are ordered a 10% discount is applied
		// If 20 shirts are ordered a 15% discount is applied
		// If 100 shirts are ordered a 25% discount is applied

		// Create a string that describes the details of the order including
		// size, color, quantity, department, if baseball sleeves are included
		// and order the total.

		String orderDetails = "5 Men's Shirt(s) in Black with baseball sleeves. \n Total: 2,000$";
		// Create a string with all theorder details
		resultLabel.setText(orderDetails);
		
	}

	
	
}