This is for a high school class I'm taking. Any tips/improvements?import java.awt.Font;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.script.ScriptEngine;import javax.script.ScriptEngineManager;import javax.script.ScriptException;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JTextField;public class JavaCalculator{    public static boolean isMemorized;    public static String memory;    public static void main (String[] args)    {        JTextField answerField = new JTextField();        answerField.setBounds (6, 6, 280, 48);        answerField.setFont (new Font (Arial, Font.PLAIN, 26));        answerField.setColumns (1);        answerField.setHorizontalAlignment (JTextField.RIGHT);        answerField.setEditable (false);        JButton button_one = new JButton (1);        button_one.setBounds (6, 92, 70, 38);        button_one.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() + 1);            }        });        JButton button_two = new JButton (2);        button_two.setBounds (76, 92, 70, 38);        button_two.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() + 2);            }        });        JButton button_three = new JButton (3);        button_three.setBounds (146, 92, 70, 38);        button_three.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() + 3);            }        });        JButton button_four = new JButton (4);        button_four.setBounds (6, 128, 70, 38);        button_four.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() + 4);            }        });        JButton button_five = new JButton (5);        button_five.setBounds (76, 128, 70, 38);        button_five.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() + 5);            }        });        JButton button_six = new JButton (6);        button_six.setBounds (146, 128, 70, 38);        button_six.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() + 6);            }        });        JButton button_seven = new JButton (7);         button_seven.setBounds (6, 164, 70, 38);        button_seven.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() + 7);            }        });        JButton button_eight = new JButton (8);        button_eight.setBounds (76, 164, 70, 38);        button_eight.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() + 8);            }        });        JButton button_nine = new JButton (9);        button_nine.setBounds (146, 164, 70, 38);        button_nine.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() + 9);            }        });        JButton button_zero = new JButton (0);        button_zero.setBounds (6, 200, 140, 50);        button_zero.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() + 0);            }        });        JButton button_period = new JButton (.);        button_period.setBounds (146, 200, 70, 50);        button_period.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() + .);            }        });        JButton button_plus = new JButton (+);        button_plus.setBounds (216, 128, 70, 38);        button_plus.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() +  + );            }        });        JButton button_minus = new JButton (-);        button_minus.setBounds (216, 92, 70, 38);        button_minus.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() +  - );            }        });        JButton button_times = new JButton (*);        button_times.setBounds (146, 56, 70, 38);        button_times.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() +  * );            }        });        JButton button_divide = new JButton (/);        button_divide.setBounds(216, 56, 70, 38);        button_divide.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                answerField.setText (answerField.getText() +  / );            }        });        JButton button_equals = new JButton (=);        button_equals.setBounds (216, 164, 70, 88);        button_equals.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent event)            {                ScriptEngineManager manager = new ScriptEngineManager();                ScriptEngine engine = manager.getEngineByName (JavaScript);                try                {                    answerField.setText (answerField.getText() +  =  + engine.eval (answerField.getText()));                }                catch (ScriptException exception)                {                    exception.printStackTrace();                }            }        });        JButton button_memory = new JButton (M);        button_memory.setBounds (76, 56, 70, 38);        button_memory.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent e)            {                if (!isMemorized)                {                    memory = answerField.getText();                    button_memory.setText (R);                    isMemorized = true;                }                else if (isMemorized)                {                    answerField.setText (answerField.getText() + memory);                }            }        });        JButton button_clear = new JButton (C);        button_clear.setBounds (6, 56, 70, 38);        button_clear.addActionListener (new ActionListener()        {            public void actionPerformed (ActionEvent e)            {                answerField.setText ();                button_memory.setText (M);                isMemorized = false;            }        });        JPanel panel = new JPanel();        panel.setLayout (null);        panel.add (answerField);        panel.add (button_one);        panel.add (button_two);        panel.add (button_three);        panel.add (button_four);        panel.add (button_five);        panel.add (button_six);        panel.add (button_seven);        panel.add (button_eight);        panel.add (button_nine);        panel.add (button_zero);        panel.add (button_period);        panel.add (button_plus);        panel.add (button_minus);        panel.add (button_times);        panel.add (button_divide);        panel.add (button_equals);        panel.add (button_memory);        panel.add (button_clear);        JFrame frame = new JFrame (Java Calculator);        frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE);        frame.setSize (300, 278);        frame.setResizable (false);        frame.getContentPane().add (panel);        frame.setVisible (true);    }}
First 4-function Swing calculator
java;swing;calculator;community challenge