calcframe.java

Java 语言实现的计算器

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package calcpackage;

/**
 *
 * @author Yuyin Li
 */
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class CalcFrame implements ActionListener{

 private CalcFunc Func=null;
 private JFrame jFrame = null;  //  @jve:decl-index=0:visual-constraint="10,7"
 private JPanel jContentPane = null;
 private JTextField jTextField = null;
 private JLabel jLabel = null;
 private JDesktopPane jDesktopPane = null;
 private JButton jButton_1 = null;
 private JButton jButton_2 = null;
 private JButton jButton_3 = null;
 private JButton jButton_4 = null;
 private JButton jButton_5 = null;
 private JButton jButton_6 = null;
 private JButton jButton_7 = null;
 private JButton jButton_8 = null;
 private JButton jButton_9 = null;
 private JButton jButton_0 = null;
 private JButton jButton_dot = null;
 private JButton jButton_Res = null;
 private JButton jButton_Add = null;
 private JButton jButton_Sub = null;
 private JButton jButton_Mul = null;
 private JButton jButton_Div = null;
 private JButton jButton_x2 = null;
 private JButton jButton_mod = null;
 private JButton jButton_1x = null;
 private JButton jButton_2x = null;
 private JButton jButton_sin = null;
 private JButton jButton_cos = null;
 private JButton jButton_tan = null;
 private JButton jButton_bp = null;
 private JButton jButton_ce = null;
 private JButton jButton_l = null;
 private JButton jButton_r = null;
 private JTextField jLeft = null;
 private JButton jButton_As = null;
 
 public CalcFrame()
 {
  getJFrame();
  CalcMenu myMenu=new CalcMenu(jFrame);
  myMenu.init();
  Func=new CalcFunc(this.jLabel,this.jTextField,this.jLeft);
  AddListener();
 }
 
 public JFrame getJFrame() {
  if (jFrame == null) {
   jFrame = new JFrame();
   jFrame.setSize(new Dimension(444, 309));
   jFrame.setTitle("计算器");
   jFrame.setName("ClacFrame");
   jFrame.setLocation(new Point(400, 200));
   jFrame.setVisible(true);
   jFrame.setResizable(false);
   jFrame.setContentPane(getJContentPane());
   jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }
  return jFrame;
 }

 
 private JPanel getJContentPane() {
  if (jContentPane == null) {
   jLabel = new JLabel();
   jLabel.setText("科学计算器");
   jLabel.setComponentOrientation(ComponentOrientation.LEFT_TO_RIGHT);
   jLabel.setFont(new Font("Dialog", Font.BOLD, 12));
   jLabel.setHorizontalAlignment(SwingConstants.CENTER);
   jLabel.setName("DispText");
   jContentPane = new JPanel();
   jContentPane.setLayout(new BorderLayout());
   jContentPane.add(getJTextField(), BorderLayout.NORTH);
   jContentPane.add(jLabel, BorderLayout.SOUTH);
   jContentPane.add(getJDesktopPane(), BorderLayout.CENTER);
   
  }
  return jContentPane;
 }
 
 private JTextField getJTextField() {
  if (jTextField == null) {
   jTextField = new JTextField();
   jTextField.setName("Result");
   jTextField.setFont(new Font("Dialog", Font.BOLD, 14));
   jTextField.setHorizontalAlignment(JTextField.RIGHT);
   jTextField.setText("0.0");
   jTextField.setBackground(Color.white);
   jTextField.setEditable(true);
  }
  return jTextField;
 }
 
 private JDesktopPane getJDesktopPane() {
  if (jDesktopPane == null) {
   jDesktopPane = new JDesktopPane();
   jDesktopPane.setBackground(new Color(238, 238, 238));
   jDesktopPane.add(getJButton_1(), null);
   jDesktopPane.add(getJButton_2(), null);
   jDesktopPane.add(getJButton_3(), null);
   jDesktopPane.add(getJButton_4(), null);
   jDesktopPane.add(getJButton_5(), null);
   jDesktopPane.add(getJButton_6(), null);
   jDesktopPane.add(getJButton_7(), null);
   jDesktopPane.add(getJButton_8(), null);
   jDesktopPane.add(getJButton_9(), null);
   jDesktopPane.add(getJButton_0(), null);
   jDesktopPane.add(getJButton_dot(), null);
   jDesktopPane.add(getJButton_Res(), null);
   jDesktopPane.add(getJButton_Add(), null);
   jDesktopPane.add(getJButton_Sub(), null);
   jDesktopPane.add(getJButton_Mul(), null);
   jDesktopPane.add(getJButton_Div(), null);
   jDesktopPane.add(getJButton_x2(), null);
   jDesktopPane.add(getjButton_mod(), null);
   jDesktopPane.add(getJButton_1x(), null);
   jDesktopPane.add(getJButton_2x(), null);
   jDesktopPane.add(getJButton_sin(), null);
   jDesktopPane.add(getJButton_cos(), null);
   jDesktopPane.add(getJButton_tan(), null);
   jDesktopPane.add(getJButton_bp(), null);
   jDesktopPane.add(getJButton_ce(), null);
   jDesktopPane.add(getJButton_l(), null);
   jDesktopPane.add(getJButton_r(), null);
   jDesktopPane.add(getJLeft(), null);
   jDesktopPane.add(getJButton_As(), null);
  }
  return jDesktopPane;
 }
 
 private JButton getJButton_1() {
  if (jButton_1 == null) {
   jButton_1 = new JButton();
   jButton_1.setBounds(new Rectangle(15, 55, 46, 27));
   jButton_1.setText("1");
  }
  return jButton_1;
 }
 
 private JButton getJButton_2() {
  if (jButton_2 == null) {
   jButton_2 = new JButton();
   jButton_2.setBounds(new Rectangle(75, 55, 46, 27));
   jButton_2.setText("2");
  }
  return jButton_2;
 }
 
 private JButton getJButton_3() {
  if (jButton_3 == null) {
   jButton_3 = new JButton();
   jButton_3.setBounds(new Rectangle(135, 55, 46, 27));
   jButton_3.setText("3");
  }
  return jButton_3;
 }
 
 private JButton getJButton_4() {
  if (jButton_4 == null) {
   jButton_4 = new JButton();
   jButton_4.setBounds(new Rectangle(15, 93, 46, 27));
   jButton_4.setText("4");
  }
  return jButton_4;
 }
 
 private JButton getJButton_5() {
  if (jButton_5 == null) {
   jButton_5 = new JButton();
   jButton_5.setBounds(new Rectangle(75, 93, 46, 27));
   jButton_5.setText("5");
  }
  return jButton_5;
 }
 
 private JButton getJButton_6() {
  if (jButton_6 == null) {
   jButton_6 = new JButton();
   jButton_6.setBounds(new Rectangle(135, 93, 46, 27));
   jButton_6.setText("6");
  }
  return jButton_6;
 }
 
 private JButton getJButton_7() {
  if (jButton_7 == null) {
   jButton_7 = new JButton();
   jButton_7.setBounds(new Rectangle(15, 133, 46, 27));
   jButton_7.setText("7");
  }
  return jButton_7;
 }
 
 private JButton getJButton_8() {
  if (jButton_8 == null) {
   jButton_8 = new JButton();
   jButton_8.setBounds(new Rectangle(75, 133, 46, 27));
   jButton_8.setText("8");
  }
  return jButton_8;
 }
 
 private JButton getJButton_9() {
  if (jButton_9 == null) {
   jButton_9 = new JButton();
   jButton_9.setBounds(new Rectangle(135, 133, 46, 27));
   jButton_9.setText("9");
  }
  return jButton_9;
 }
 
 private JButton getJButton_0() {
  if (jButton_0 == null) {
   jButton_0 = new JButton();
   jButton_0.setBounds(new Rectangle(15, 171, 46, 27));
   jButton_0.setText("0");
  }
  return jButton_0;
 }
 
 private JButton getJButton_dot() {
  if (jButton_dot == null) {
   jButton_dot = new JButton();
   jButton_dot.setBounds(new Rectangle(75, 171, 46, 27));
   jButton_dot.setText(".");
  }
  return jButton_dot;
 }
 
 private JButton getJButton_Res() {
  if (jButton_Res == null) {
   jButton_Res = new JButton();
   jButton_Res.setBounds(new Rectangle(135, 171, 46, 27));
   jButton_Res.setText("=");
  }
  return jButton_Res;
 }
 
 private JButton getJButton_Add() {
  if (jButton_Add == null) {
   jButton_Add = new JButton();
   jButton_Add.setBounds(new Rectangle(195, 55, 46, 27));
   jButton_Add.setText("+");
  }
  return jButton_Add;
 }
 
 private JButton getJButton_Sub() {
  if (jButton_Sub == null) {
   jButton_Sub = new JButton();
   jButton_Sub.setBounds(new Rectangle(195, 93, 46, 27));
   jButton_Sub.setText("-");
  }
  return jButton_Sub;
 }
 
 private JButton getJButton_Mul() {
  if (jButton_Mul == null) {
   jButton_Mul = new JButton();
   jButton_Mul.setBounds(new Rectangle(195, 133, 46, 27));
   jButton_Mul.setText("*");
  }
  return jButton_Mul;
 }
 
 private JButton getJButton_Div() {
  if (jButton_Div == null) {
   jButton_Div = new JButton();
   jButton_Div.setBounds(new Rectangle(195, 171, 46, 27));
   jButton_Div.setText("/");
  }
  return jButton_Div;
 }
 
 private JButton getJButton_x2() {
  if (jButton_x2 == null) {
   jButton_x2 = new JButton();
   jButton_x2.setBounds(new Rectangle(286, 93, 60, 27));
   jButton_x2.setText("x^2");
  }
  return jButton_x2;
 }
 
 private JButton getjButton_mod() {
  if (jButton_mod == null) {
   jButton_mod = new JButton();
   jButton_mod.setBounds(new Rectangle(358, 93, 60, 27));
   jButton_mod.setText("sqrt");
  }
  return jButton_mod;
 }
 
 private JButton getJButton_1x() {
  if (jButton_1x == null) {
   jButton_1x = new JButton();
   jButton_1x.setBounds(new Rectangle(286, 133, 60, 27));
   jButton_1x.setText("1/x");
  }
  return jButton_1x;
 }
 
 private JButton getJButton_2x() {
  if (jButton_2x == null) {
   jButton_2x = new JButton();
   jButton_2x.setText("sqrt");
  }
  return jButton_2x;
 }
 
 private JButton getJButton_sin() {
  if (jButton_sin == null) {
   jButton_sin = new JButton();
   jButton_sin.setText("sin");
   jButton_sin.setBounds(new Rectangle(358, 171, 60, 27));
  }
  return jButton_sin;
 }
 
 private JButton getJButton_cos() {
  if (jButton_cos == null) {
   jButton_cos = new JButton();
   jButton_cos.setBounds(new Rectangle(358, 133, 60, 27));
   jButton_cos.setText("cos");
  }
  return jButton_cos;
 }
 
 private JButton getJButton_tan() {
  if (jButton_tan == null) {
   jButton_tan = new JButton();
   jButton_tan.setBounds(new Rectangle(286, 171, 60, 27));
   jButton_tan.setText("tan");
  }
  return jButton_tan;
 }
 
 private JButton getJButton_bp() {
  if (jButton_bp == null) {
   jButton_bp = new JButton();
   jButton_bp.setBounds(new Rectangle(15, 17,107, 27));
   jButton_bp.setText("退出");
  }
  return jButton_bp;
 }
 
 private JButton getJButton_ce() {
  if (jButton_ce == null) {
   jButton_ce = new JButton();
   jButton_ce.setBounds(new Rectangle(285, 17, 134, 27));
   jButton_ce.setText("清空");
  }
  return jButton_ce;
 }
 
 private JButton getJButton_l() {
  if (jButton_l == null) {
   jButton_l = new JButton();
   jButton_l.setBounds(new Rectangle(286, 55, 60, 27));
   jButton_l.setText("(");
  }
  return jButton_l;
 }
 
 private JButton getJButton_r() {
  if (jButton_r == null) {
   jButton_r = new JButton();
   jButton_r.setBounds(new Rectangle(358, 55,  60, 27));
   jButton_r.setText(")");
  }
  return jButton_r;
 }
 private void AddListener()
 {
  jButton_1.addActionListener(this);
  jButton_2.addActionListener(this);
  jButton_3.addActionListener(this);
  jButton_4.addActionListener(this);
  jButton_5.addActionListener(this);
  jButton_6.addActionListener(this);
  jButton_7.addActionListener(this);
  jButton_8.addActionListener(this);
  jButton_9.addActionListener(this);
  jButton_0.addActionListener(this);
  jButton_Add.addActionListener(this);
  jButton_Sub.addActionListener(this);
  jButton_Mul.addActionListener(this);
  jButton_Div.addActionListener(this);
  jButton_dot.addActionListener(this);
  jButton_Res.addActionListener(this);
  jButton_sin.addActionListener(this);
  jButton_cos.addActionListener(this);
  jButton_tan.addActionListener(this);
  jButton_x2.addActionListener(this);
  jButton_mod.addActionListener(this);
  jButton_1x.addActionListener(this);
  jButton_2x.addActionListener(this);
  jButton_bp.addActionListener(this);
  jButton_ce.addActionListener(this);
  jButton_l.addActionListener(this);
  jButton_r.addActionListener(this);
  jButton_As.addActionListener(this);
 }
 
 private JTextField getJLeft() {
  if (jLeft == null) {
   jLeft = new JTextField();
   jLeft.setBounds(new Rectangle(195, 17, 46, 27));
   jLeft.setText("");
   jLeft.setFont(new Font("Dialog", Font.BOLD, 14));
   jLeft.setHorizontalAlignment(JTextField.CENTER);
   jLeft.setEditable(false);
  }
  return jLeft;
 }
 
 private JButton getJButton_As() {
  if (jButton_As == null) {
   jButton_As = new JButton();
   jButton_As.setBounds(new Rectangle(135, 17, 46, 27));
   jButton_As.setText("+-");
  }
  return jButton_As;
 }
 public void actionPerformed(ActionEvent e)
 {
  String Command=e.getActionCommand();
  this.jLabel.setText("输入...");
  if(Command.equals("sin"))
   Func.Sin();
  else if(Command.equals("cos"))
   Func.Cos();
  else if(Command.equals("tan"))
   Func.Tan();
  else if(Command.equals("x^2"))
   Func.X2();
  else if(Command.equals("1/x"))
   Func.X1();
  else if(Command.equals("("))
   Func.Left();
  else if(Command.equals(")"))
   Func.Right();
  else if(Command.equals("sqrt"))
   Func.Sqrt();
  else if(Command.equals("清空"))
   Func.Clear();
  else if(Command.equals("退出"))
   System.exit(0);
  else if(Command.equals("="))
   Func.Be();
  else if(Command.equals("+-"))
   Func.As();
  else
   Func.Input(Command);
 }

}