The following is the code part:
package pri.Cal.views;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
import javax.swing.ButtonGroup;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.LookAndFeel;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.EmptyBorder;

public class CalViews extends JFrame {
private JPanel contentPane;
private JTextField textField_2;
private JTextField textField;
private String t1=null;
private String t3;
private double n1=0;
private JMenuBar menuBar;
private JMenu menu;
private JButton button_1;
private JButton button_3;
private JButton button_2;
private JButton button_4;
private JButton button_5;
private JButton button_6;
private JButton button_7;
private JButton button_8;
private JButton button_9;
private JButton button_10;
private JButton button_11;
private JButton button_12;
private JButton btnC;
private JButton button_17;
private JButton btnSin;
private JButton button_18;
private String strbg="";
private JButton btnPow;
private JButton button_19;
private JButton btnLg;
private JButton btnNewButton;
private JButton button_20;
private JButton button_21;
private JButton button_22;
/**
* Launch the application.
*/
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(NimbusLookAndFeel());
} catch (UnsupportedLookAndFeelException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
CalViews frame = new CalViews();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
private static LookAndFeel NimbusLookAndFeel() {
// TODO Auto-generated method stub
return null;
}
/**
* Create the frame.
*/
public CalViews() {
setForeground(new Color(204, 255, 255));
setBackground(new Color(204, 255, 255));
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 478, 333);
menuBar = new JMenuBar();
menuBar.setBackground(new Color(204, 255, 255));
menuBar.setForeground(Color.BLUE);
setJMenuBar(menuBar);
menu = new JMenu("帮助");
menu.setBackground(new Color(204, 255, 255));
menuBar.add(menu);
button_1 = new JButton("关于");
button_1.setBackground(new Color(204, 255, 255));
button_1.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
JOptionPane.showMessageDialog(CalViews.this, "此软件由浮冰制作，版权所有哦！(*^__^*) 嘻嘻……", "计算器", JOptionPane.INFORMATION_MESSAGE, null);
}
});
menu.add(button_1);
contentPane = new JPanel();
contentPane.setBackground(new Color(204, 255, 255));
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
ButtonGroup group=new ButtonGroup();
textField = new JTextField();
textField.setBackground(new Color(255, 153, 255));
textField.setFont(new Font("Yu Gothic Light", Font.BOLD | Font.ITALIC, 18));
textField.setEditable(false);
textField.setColumns(10);
JButton button = new JButton("计算");
button.setBackground(new Color(204, 255, 255));
button.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
ScriptEngine se = new ScriptEngineManager().getEngineByName("JavaScript");
//t1=textField.getText();
t1=strbg;
try {
Object object=se.eval(t1);
t1=object.toString();
} catch (ScriptException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
n1=Double.parseDouble(t1);
n1=Math.pow(10,14)*n1;
n1=Math.round(n1);
n1=n1/Math.pow(10,14);
if(n1 % 1.0==0){
Long l=(long) n1;
t3=String.valueOf(l);
textField_2.setText(t3);
}else{
t3=String.valueOf(n1);
textField_2.setText(t3);
}
}
});
//textField_1.addKeyListener(new KeyAdapter(){
//
//@Override
//public void keyPressed(KeyEvent e) {
//// TODO Auto-generated method stub
//textField_1.setText(textField_1.getText().replaceAll("[^-/qwer]", ""));
//};
//});
textField_2 = new JTextField();
textField_2.setBackground(new Color(255, 153, 255));
textField_2.setFont(new Font("Yu Gothic Light", Font.BOLD | Font.ITALIC, 18));
textField_2.setEditable(false);
textField_2.setHorizontalAlignment(SwingConstants.LEFT);
textField_2.setColumns(10);
button_2 = new JButton("1");
button_2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
}
});
button_2.setBackground(new Color(204, 255, 255));
button_2.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText()+1);
strbg=strbg+"1";
}
});
button_3 = new JButton("2");
button_3.setBackground(new Color(204, 255, 255));
button_3.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText()+2);
strbg=strbg+"2";
}
});
button_4 = new JButton("3");
button_4.setBackground(new Color(204, 255, 255));
button_4.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText()+3);
strbg=strbg+"3";
}
});
button_5 = new JButton("4");
button_5.setBackground(new Color(204, 255, 255));
button_5.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText()+4);
strbg=strbg+"4";
}
});
button_6 = new JButton("5");
button_6.setBackground(new Color(204, 255, 255));
button_6.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText()+5);
strbg=strbg+"5";
}
});
button_7 = new JButton("6");
button_7.setBackground(new Color(204, 255, 255));
button_7.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText()+6);
strbg=strbg+"6";
}
});
button_8 = new JButton("7");
button_8.setBackground(new Color(204, 255, 255));
button_8.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText()+7);
strbg=strbg+"7";
}
});
button_9 = new JButton("8");
button_9.setBackground(new Color(204, 255, 255));
button_9.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText()+8);
strbg=strbg+"8";
}
});
button_10 = new JButton("9");
button_10.setBackground(new Color(204, 255, 255));
button_10.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText()+9);
strbg=strbg+"9";
}
});
button_11 = new JButton("0");
button_11.setBackground(new Color(204, 255, 255));
button_11.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText()+0);
strbg=strbg+"0";
}
});
button_12 = new JButton(".");
button_12.setBackground(new Color(204, 255, 255));
button_12.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + ".");
strbg=strbg+".";
}
});

JButton button_13 = new JButton("+");
button_13.setBackground(new Color(204, 255, 255));
button_13.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "+");
strbg=strbg+"+";
}
});
JButton button_14 = new JButton("-");
button_14.setBackground(new Color(204, 255, 255));
button_14.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "-");
strbg=strbg+"-";
}
});
JButton button_15 = new JButton("*");
button_15.setBackground(new Color(204, 255, 255));
button_15.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "*");
strbg=strbg+"*";
}
});
JButton button_16 = new JButton("/");
button_16.setBackground(new Color(204, 255, 255));
button_16.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "/");
strbg=strbg+"/";
}
});
btnC = new JButton("C");
btnC.setBackground(new Color(204, 255, 255));
btnC.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText("");
strbg="";
}
});
button_17 = new JButton("(");
button_17.setBackground(new Color(204, 255, 255));
button_17.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "(");
strbg=strbg+"(";
}
});
btnSin = new JButton("sin");
btnSin.setBackground(new Color(204, 255, 255));
btnSin.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "sin");
strbg=strbg+"Math.sin";
}
});
button_18 = new JButton(")");
button_18.setBackground(new Color(204, 255, 255));
button_18.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + ")");
strbg=strbg+")";
}
});
JButton btnCos = new JButton("cos");
btnCos.setBackground(new Color(204, 255, 255));
btnCos.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "cos");
strbg=strbg+"Math.cos";
}
});
JButton btnTan = new JButton("tan");
btnTan.setBackground(new Color(204, 255, 255));
btnTan.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "tan");
strbg=strbg+"Math.tan";
}
});
JButton btnLn = new JButton("Ln");
btnLn.setBackground(new Color(204, 255, 255));
btnLn.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "Ln");
strbg=strbg+"Math.log";
}
});
btnPow = new JButton("pow");
btnPow.setBackground(new Color(204, 255, 255));
btnPow.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "pow");
strbg=strbg+"Math.pow";
}
});
button_19 = new JButton(",");
button_19.setBackground(new Color(204, 255, 255));
button_19.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + ",");
strbg=strbg+",";
}
});
btnLg = new JButton("Lg");
btnLg.setBackground(new Color(204, 255, 255));
btnLg.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "Lg");
strbg=strbg+"Math.pow(Math.log(10),-1)*Math.log";
}
});
btnNewButton = new JButton("[");
btnNewButton.setBackground(new Color(204, 255, 255));
btnNewButton.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "[");
strbg=strbg+"(";
}
});

button_20 = new JButton("]");
button_20.setBackground(new Color(204, 255, 255));
button_20.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "]");
strbg=strbg+")";
}
});
button_21 = new JButton("{");
button_21.setBackground(new Color(204, 255, 255));
button_21.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "{");
strbg=strbg+"(";
}
});
button_22 = new JButton("}");
button_22.setBackground(new Color(204, 255, 255));
button_22.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText() + "}");
strbg=strbg+")";
}
});
JButton button_23 = new JButton("←");
button_23.setBackground(new Color(204, 255, 255));
button_23.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
textField.setText(textField.getText().substring(0, textField.getText().length()-1));
}
});
GroupLayout gl_contentPane = new GroupLayout(contentPane);
gl_contentPane.setHorizontalGroup(
gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addComponent(button_8)
.addComponent(button_12))
.addPreferredGap(ComponentPlacement.RELATED)
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(button_9)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(button_10))
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(button_11)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(button_19)))
.addPreferredGap(ComponentPlacement.RELATED)
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(button_16)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(btnTan)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(btnLg)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(button_22))
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(button_15)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(btnCos)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(btnLn)
.addPreferredGap(ComponentPlacement.UNRELATED)
.addComponent(button_21))))
.addComponent(textField, GroupLayout.DEFAULT_SIZE, 442, Short.MAX_VALUE)
.addGroup(gl_contentPane.createSequentialGroup()
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(button_2)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(button_3)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(button_4)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(button_13)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(button_17, GroupLayout.PREFERRED_SIZE, 47, GroupLayout.PREFERRED_SIZE))
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(button_5)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(button_6)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(button_7)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(button_14)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(btnSin)))
.addPreferredGap(ComponentPlacement.RELATED)
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(button_18)
.addGap(18)
.addComponent(btnNewButton))
.addGroup(gl_contentPane.createSequentialGroup()
.addComponent(btnPow)
.addPreferredGap(ComponentPlacement.RELATED)
.addComponent(button_20))))
.addGroup(gl_contentPane.createSequentialGroup()
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addComponent(button, GroupLayout.DEFAULT_SIZE, 59, Short.MAX_VALUE)
.addComponent(btnC, GroupLayout.DEFAULT_SIZE, 55, Short.MAX_VALUE))
.addPreferredGap(ComponentPlacement.UNRELATED)
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addComponent(button_23)
.addComponent(textField_2, GroupLayout.DEFAULT_SIZE, 377, Short.MAX_VALUE))))
.addContainerGap())
);
gl_contentPane.setVerticalGroup(
gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addGap(6)
.addComponent(textField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
.addPreferredGap(ComponentPlacement.RELATED)
.addGroup(gl_contentPane.createParallelGroup(Alignment.LEADING)
.addGroup(gl_contentPane.createSequentialGroup()
.addGap(92)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(button_11)
.addComponent(button_12)
.addComponent(button_16)
.addComponent(btnTan)
.addComponent(button_19)
.addComponent(btnLg)
.addComponent(button_22)))
.addGroup(gl_contentPane.createSequentialGroup()
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(button_2)
.addComponent(button_3)
.addComponent(button_4)
.addComponent(button_13)
.addComponent(button_17)
.addComponent(button_18)
.addComponent(btnNewButton))
.addPreferredGap(ComponentPlacement.RELATED)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(button_5)
.addComponent(button_6)
.addComponent(button_7)
.addComponent(button_14)
.addComponent(btnSin)
.addComponent(btnPow)
.addComponent(button_20))
.addGap(5)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(button_8)
.addComponent(button_9)
.addComponent(button_10)
.addComponent(button_15)
.addComponent(btnCos)
.addComponent(btnLn)
.addComponent(button_21))))
.addGap(24)
.addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING, false)
.addComponent(button, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(textField_2))
.addPreferredGap(ComponentPlacement.RELATED)
.addGroup(gl_contentPane.createParallelGroup(Alignment.BASELINE)
.addComponent(btnC)
.addComponent(button_23))
.addContainerGap(GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
contentPane.setLayout(gl_contentPane);
}
}