import java.awt.BorderLayout;
import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;

import com.sun.glass.events.MouseEvent;

import java.awt.Color;
import javax.swing.JLabel;
import java.awt.Font;
import javax.swing.JButton;
import javax.swing.JTextField;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JSpinner;

public class FrameBuilder extends JFrame {

    private JPanel contentPane;
    private JTextField textField;
    private JTextField textField_1;
    private JTextField textField_2;
    private JTextField textField_3;

    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    FrameBuilder frame = new FrameBuilder();
                    frame.setVisible(true);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public FrameBuilder() {
        setBackground(new Color(0, 0, 0));
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100, 100, 450, 300);
        contentPane =new JPanel();
        contentPane.setBackground(Color.BLACK);
        contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
        setContentPane(contentPane);
        contentPane.setLayout(null);

        JLabel lblRectangles = new JLabel("Rectangles");
        lblRectangles.setForeground(Color.WHITE);
        lblRectangles.setFont(new Font("Times New Roman", Font.PLAIN, 15));
        lblRectangles.setBounds(10, 11, 94, 18);
        contentPane.add(lblRectangles);

        JLabel lblWidth = new JLabel("Width");
        lblWidth.setForeground(Color.WHITE);
        lblWidth.setFont(new Font("Times New Roman", Font.PLAIN, 11));
        lblWidth.setBounds(10, 40, 46, 14);
        contentPane.add(lblWidth);

        JLabel lblLength = new JLabel("Length");
        lblLength.setForeground(Color.WHITE);
        lblLength.setFont(new Font("Times New Roman", Font.PLAIN, 11));
        lblLength.setBounds(10, 65, 46, 14);
        contentPane.add(lblLength);

        JLabel lblPerimeter = new JLabel("Perimeter");
        lblPerimeter.setForeground(Color.WHITE);
        lblPerimeter.setFont(new Font("Times New Roman", Font.PLAIN, 11));
        lblPerimeter.setBounds(10, 90, 46, 14);
        contentPane.add(lblPerimeter);

        JLabel lblNewLabel = new JLabel("Area");
        lblNewLabel.setForeground(Color.WHITE);
        lblNewLabel.setFont(new Font("Times New Roman", Font.PLAIN, 11));
        lblNewLabel.setBounds(10, 115, 46, 14);
        contentPane.add(lblNewLabel);

        textField = new JTextField();
        textField.setBounds(335, 87, 89, 20);
        contentPane.add(textField);
        textField.setColumns(10);

        textField_1 = new JTextField();
        textField_1.setBounds(335, 112, 89, 20);
        contentPane.add(textField_1);
        textField_1.setColumns(10);

        JButton btnCalculate = new JButton("Calculate");
        btnCalculate.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {
                double length, width, area, perimeter;
                width = Double.parseDouble(textField_2.getText());
                length = Double.parseDouble(textField_3.getText());
                area = length*width;
                perimeter = 2*length+2*width;
                textField_1.setText(String.valueOf(area));
                textField.setText(String.valueOf(perimeter));



            }
        });
        btnCalculate.setBounds(335, 8, 89, 23);
        contentPane.add(btnCalculate);

        textField_2 = new JTextField();
        textField_2.setBounds(335, 37, 89, 20);
        contentPane.add(textField_2);
        textField_2.setColumns(10);

        textField_3 = new JTextField();
        textField_3.setBounds(335, 62, 89, 20);
        contentPane.add(textField_3);
        textField_3.setColumns(10);
            }
    }