我正在开发一种可以计算复数的计算器：当我单击复数运算符时，我希望它向我显示3个字段来在上面写数字，而不是一个字段。
示例：
(10+2i)+(6+3i)=16+5i
我制作了可以执行此操作的类，现在我想为我的界面创建一个动作事件，以将其从普通的计算器转换为具有3个文本字段的复杂计算器。
package calculatrice;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import java.math.*;
import com.jgoodies.forms.factories.DefaultComponentFactory;
import org.eclipse.wb.swing.FocusTraversalOnArray;
import javax.swing.border.MatteBorder;
public class Calculatrice01 {
private JFrame frame;
private JTextField textField;
double number1,number2,result;
String operation,answer;
private JFrame panel ;
private JTextField field1;
private JTextField field2;
private JTextField field3;
private JTextField field4;
private JTextField field5;
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Calculatrice01 window = new Calculatrice01();
window.frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public Calculatrice01() {
initialize();
}
private void initialize() {
frame = new JFrame();
frame.getContentPane().setBackground(new Color(102, 102,
102));
frame.setBackground(new Color(102, 102, 102));
frame.setBounds(100, 100, 576, 286);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
frame.setTitle("Calculator Made By DO.Yasser");
frame.setLocationRelativeTo(null);
frame.setResizable(false);
textField = new JTextField();
textField.setHorizontalAlignment(SwingConstants.RIGHT);
textField.setText("");
textField.setBounds(12, 12, 539, 32);
textField.setBackground(Color.WHITE);
frame.getContentPane().add(textField);
textField.setColumns(10);
textField.setFont(new Font("Liberation Mono",Font.BOLD,15));
JButton btnCE = new JButton("CE");
btnCE.setBackground(new Color(255, 153, 0));
btnCE.setBounds(466, 56, 80, 30);
btnCE.setFont(new Font("Tahoma",Font.BOLD,15));
frame.getContentPane().add(btnCE);
btnCE.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setBounds(12, 12, 539, 32);
textField.setText(null);
}
});
JButton btnDiv = new JButton("÷");
btnDiv.setBackground(new Color(255, 153, 0));
btnDiv.setBounds(466, 98, 80, 30);
btnDiv.setFont(new Font("Tahoma",Font.BOLD,15));
frame.getContentPane().add(btnDiv);
btnDiv.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
number1 =Double.parseDouble(textField.getText());
textField.setText("");
operation="/";
}
});
JButton btnMul = new JButton("X");
btnMul.setBackground(new Color(255, 153, 0));
btnMul.setBounds(466, 137, 80, 30);
btnMul.setFont(new Font("Tahoma",Font.BOLD,15));
frame.getContentPane().add(btnMul);
btnMul.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
number1=Double.parseDouble(textField.getText());
textField.setText("");
operation="x";
}
});
JButton btnSub = new JButton("-");
btnSub.setFont(new Font("Tahoma",Font.BOLD,15));
btnSub.setBackground(new Color(255, 153, 0));
btnSub.setBounds(466, 174, 80, 30);
frame.getContentPane().add(btnSub);
btnSub.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
number1=Double.parseDouble(textField.getText());
textField.setText("");
operation="-";
}
});
JButton btnPlus = new JButton("+");
btnPlus.setBackground(new Color(255, 153, 0));
btnPlus.setFont(new Font("Tahoma",Font.BOLD,15));
btnPlus.setBounds(466, 216, 80, 30);
frame.getContentPane().add(btnPlus);
btnPlus.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
number1=Double.parseDouble(textField.getText());
textField.setText("");
operation="+";
}
});
JButton btnSqrt = new JButton("√");
btnSqrt.setBackground(new Color(255, 153, 0));
btnSqrt.setFont(new Font("Tahoma",Font.BOLD,15));
btnSqrt.setBounds(286, 56, 80, 30);
frame.getContentPane().add(btnSqrt);
btnSqrt.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
number1 =
Double.parseDouble(String.valueOf(textField.getText()));
number1 = Math.sqrt(number1);
textField.setText(String.valueOf(number1));
}
});
JButton btn8 = new JButton("8");
btn8.setFont(new Font("Tahoma",Font.BOLD,15));
btn8.setBounds(286, 98, 80, 30);
frame.getContentPane().add(btn8);
btn8.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String num=textField.getText()+btn8.getText();
textField.setText(num);
}
});
JButton btn5 = new JButton("5");
btn5.setFont(new Font("Tahoma",Font.BOLD,15));
btn5.setBounds(286, 137, 80, 30);
frame.getContentPane().add(btn5);
btn5.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String num=textField.getText()+btn5.getText();
textField.setText(num);
}
});
JButton btn2 = new JButton("2");
btn2.setFont(new Font("Tahoma",Font.BOLD,15));
btn2.setBounds(286, 174, 80, 30);
frame.getContentPane().add(btn2);
btn2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String num=textField.getText()+btn2.getText();
textField.setText(num);
}
});
JButton btnPoint = new JButton(".");
btnPoint.setFont(new Font("Tahoma",Font.BOLD,15));
btnPoint.setBounds(286, 216, 80, 30);
frame.getContentPane().add(btnPoint);
btnPoint.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
if(!textField.getText().contains(".")) {
String num=textField.getText()+btnPoint.getText();
textField.setText(num);
}
}
});
JButton btnPow = new JButton("X^y");
btnPow.setFont(new Font("Tahoma",Font.BOLD,15));
btnPow.setBackground(new Color(255, 153, 0));
btnPow.setBounds(100, 100, 80, 30);
frame.getContentPane().add(btnPow);
btnPow.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
number1=Double.parseDouble(textField.getText());
textField.setText("");
operation="x^y";
}
});
JButton btn9 = new JButton("9");
btn9.setFont(new Font("Tahoma",Font.BOLD,15));
btn9.setBounds(378, 98, 80, 30);
frame.getContentPane().add(btn9);
btn9.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String num=textField.getText()+btn9.getText();
textField.setText(num);
}
});
JButton btn6 = new JButton("6");
btn6.setFont(new Font("Tahoma",Font.BOLD,15));
btn6.setBounds(378, 137, 80, 30);
frame.getContentPane().add(btn6);
btn6.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String num=textField.getText()+btn6.getText();
textField.setText(num);
}
});
JButton btn3 = new JButton("3");
btn3.setFont(new Font("Tahoma",Font.BOLD,15));
btn3.setBounds(378, 174, 80, 30);
frame.getContentPane().add(btn3);
btn3.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String num=textField.getText()+btn3.getText();
textField.setText(num);
}
});
JButton btnEq = new JButton("=");
btnEq.setFont(new Font("Tahoma",Font.BOLD,15));
btnEq.setForeground(Color.WHITE);
btnEq.setBackground(new Color(51, 102, 204));
btnEq.setBounds(378, 216, 80, 30);
frame.getContentPane().add(btnEq);
btnEq.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String answer;
number2=Double.parseDouble(textField.getText());
if(operation=="+") {
number1+=number2;
textField.setText(String.valueOf(number1));
}
else if (operation =="-") {
number1-=number2;
textField.setText(String.valueOf(number1));
}
else if (operation =="x") {
number1*=number2;
textField.setText(String.valueOf(number1));
}
else if (operation =="/") {
number1=number1/number2;
textField.setText(String.valueOf(number1));
}
else if (operation =="x^y") {
number1=Math.pow(number1, number2);
textField.setText(String.valueOf(number1));
}
}
});
JButton btnPI = new JButton("π");
btnPI.setFont(new Font("Tahoma",Font.BOLD,15));
btnPI.setBackground(new Color(255, 153, 0));
btnPI.setBounds(194, 56, 80, 30);
frame.getContentPane().add(btnPI);
btnPI.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
textField.setText(String.valueOf(Math.PI));
}
});
JButton btn7 = new JButton("7");
btn7.setFont(new Font("Tahoma",Font.BOLD,15));
btn7.setBounds(194, 98, 80, 30);
frame.getContentPane().add(btn7);
btn7.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String num=textField.getText()+btn7.getText();
textField.setText(num);
}
});
JButton btn4 = new JButton("4");
btn4.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String num=textField.getText()+btn4.getText();
textField.setText(num);
}
});
btn4.setFont(new Font("Tahoma",Font.BOLD,15));
btn4.setBounds(194, 137, 80, 30);
frame.getContentPane().add(btn4);
JButton btn1 = new JButton("1");
btn1.setFont(new Font("Tahoma",Font.BOLD,15));
btn1.setBounds(194, 174, 80, 30);
frame.getContentPane().add(btn1);
btn1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String num=textField.getText()+btn1.getText();
textField.setText(num);
}
});
JButton btn0 = new JButton("0");
btn0.setFont(new Font("Tahoma",Font.BOLD,15));
btn0.setBounds(194, 216, 80, 30);
frame.getContentPane().add(btn0);
btn0.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String num=textField.getText()+btn0.getText();
textField.setText(num);
}
});
JButton btnFact = new JButton("X!");
btnFact.setFont(new Font("Tahoma",Font.BOLD,15));
btnFact.setBackground(new Color(255, 153, 0));
btnFact.setBounds(100, 58, 80, 30);
frame.getContentPane().add(btnFact);
btnFact.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
int fact =
Integer.parseInt(String.valueOf(textField.getText()));
number1=fact;
for(int i=1;i<fact;i++) {
number1*=i;
}
textField.setText(String.valueOf(number1));
}
});
JButton btnSin = new JButton("Sin");
btnSin.setFont(new Font("Tahoma",Font.BOLD,15));
btnSin.setBackground(new Color(255, 153, 0));
btnSin.setBounds(100, 216, 80, 30);
frame.getContentPane().add(btnSin);
JButton btnCos = new JButton("Cos");
btnCos.setFont(new Font("Tahoma",Font.BOLD,15));
btnCos.setBackground(new Color(255, 153, 0));
btnCos.setBounds(100, 139, 80, 30);
frame.getContentPane().add(btnCos);
JButton btnTan = new JButton("Tan");
btnTan.setFont(new Font("Tahoma",Font.BOLD,15));
btnTan.setBackground(new Color(255, 153, 0));
btnTan.setBounds(100, 176, 80, 30);
frame.getContentPane().add(btnTan);
JButton btnExp = new JButton("EXP");
btnExp.setFont(new Font("Tahoma",Font.BOLD,15));
btnExp.setBackground(new Color(255, 153, 0));
btnExp.setBounds(12, 139, 80, 30);
frame.getContentPane().add(btnExp);
btnExp.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
String num=textField.getText();
if (num=="") {
textField.setText(String.valueOf(Math.E));
}else {
number1 =
Double.parseDouble(String.valueOf(textField.getText()));
number1 = Math.exp(number1);
textField.setText(String.valueOf(number1));
}
}
});
JButton btnImg = new JButton("i");
btnImg.setFont(new Font("Tahoma",Font.BOLD,15));
btnImg.setBackground(new Color(255, 153, 0));
btnImg.setBounds(12, 58, 80, 30);
frame.getContentPane().add(btnImg);
btnImg.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
//frame.setPreferredSize(new Dimension(650, 286));
frame.setVisible(false);
//panel.setVisible(true);
textField.setBounds(12, 12, 50, 32);
frame.getContentPane().add( field1);
}
});
JButton btnPM = new JButton("±");
btnPM.setFont(new Font("Tahom",Font.BOLD,15));
btnPM.setBackground(new Color(255, 153, 0));
btnPM.setBounds(12, 100, 80, 30);
frame.getContentPane().add(btnPM);
btnPM.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
double num =
Double.parseDouble(String.valueOf(textField.getText()));
num*=(-1);
textField.setText(String.valueOf(num));
}
});
JButton btnDel = new JButton("⌫");
btnDel.setFont(new Font("Tahoma",Font.BOLD,15));
btnDel.setBackground(new Color(255, 153, 0));
btnDel.setBounds(378,56,80,30);
frame.getContentPane().add(btnDel);
btnDel.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
String del = null;
if(textField.getText().length()>0) {
StringBuilder str = new
StringBuilder(textField.getText());
str.deleteCharAt(textField.getText().length()-1);
del =str.toString();
textField.setText(del);
}
}
});
JToggleButton btnDeg = new JToggleButton("Deg");
btnDeg.setBackground(Color.RED);
btnDeg.setBounds(12, 178, 80, 30);;
frame.getContentPane().add(btnDeg);
JToggleButton btnRad = new JToggleButton("Rad");
btnRad.setBackground(Color.RED);
btnRad.setBounds(12, 217, 80, 30);;
frame.getContentPane().add(btnRad);
btnSin.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
number1=Double.parseDouble(String.valueOf(textField.getText()));
if(btnDeg.isSelected()==true) {
btnRad.setSelected(false);
number1=Math.toRadians(number1);
double res = Math.sin(number1);
textField.setText(String.valueOf(res));
}else {
btnRad.setSelected(true);
number1=Math.sin(number1);//Resultat en radian
textField.setText(String.valueOf(number1));
}
}
});
btnCos.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
number1=Double.parseDouble(String.valueOf(textField.getText()));
if(btnDeg.isSelected()==true) {
btnRad.setSelected(false);
number1=Math.toRadians(number1);
double res = Math.cos(number1);
textField.setText(String.valueOf(res));
}else {
btnRad.setSelected(true);
number1=Math.cos(number1);//Resultat en radian
textField.setText(String.valueOf(number1));
}
}
});
btnTan.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
number1=Double.parseDouble(String.valueOf(textField.getText()));
if(btnDeg.isSelected()==true) {
btnRad.setSelected(false);
number1=Math.toRadians(number1);
double res = Math.tan(number1);
textField.setText(String.valueOf(res));
}else {
btnRad.setSelected(true);
number1=Math.tan(number1);//Resultat en radian
textField.setText(String.valueOf(number1));
}
}
});
}
}
答案 0 :(得分：0)
添加所有字段，并隐藏仅用于复杂计算的字段，即
field1.setVisible(false);
使用JButton，JCheckbox或JRadioButton让用户指出他/她想要执行复杂的计算，然后使其他字段可见。