可视化计算java_Java可视化计算器
今天更新Java可視化計算器，我的新浪微博：點擊打開鏈接
，沒有測試圖片，不過程序絕對正確，放心使用，我測試過了，c++版的請見：點擊打開鏈接
package com.lzw06;import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import java.awt.Color;
import javax.swing.JTextField;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.Font;
import javax.swing.UIManager;
import javax.swing.SwingConstants;
import javax.swing.AbstractAction;
import javax.swing.Action;
import java.lang.Math.*;
public class jcalculator extends JFrame {
private JPanel contentPane;
private JTextField textField;
private JTextField textField_1;
private final Action action = new SwingAction();
private double sum=0;
private boolean b=false;
String opo="None";
String pro="Digit";
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
jcalculator frame = new jcalculator();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public void JudgeDigit(int i){
if (b == true) {
textField.setText("");
textField.setText(String.valueOf(i));
b = false;
}
else {
textField.setText(textField.getText() + String.valueOf(i));
}
pro="Digit";
}
public void JudgeOperator(String s){
b=true;
String opn=s;
if(pro.equals("Digit")){
switch(opo){
case "+":sum += Double.parseDouble(textField.getText());opo=opn;break;
case "-":sum -= Double.parseDouble(textField.getText());opo=opn;break;
case "*":sum *= Double.parseDouble(textField.getText());opo=opn;break;
case "/":sum /= Double.parseDouble(textField.getText());opo=opn;break;
case "None":sum=Double.parseDouble(textField.getText());opo=opn;break;
}
textField_1.setText(textField_1.getText()+textField.getText() + s);
textField.setText(String.valueOf(sum));
pro="Operator";
}
if(opo.equals("=")){
textField_1.setText("");
textField.setText(String.valueOf(sum));
}
}
public jcalculator() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setTitle("lulu\u7684\u8BA1\u7B97\u5668");
setBackground(Color.YELLOW);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 323, 345);
contentPane = new JPanel();
contentPane.setBackground(Color.BLUE);
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
textField = new JTextField();
textField.setBounds(10, 10, 289, 21);
contentPane.add(textField);
textField.setColumns(10);
textField_1 = new JTextField();
textField_1.setBounds(10, 41, 289, 21);
contentPane.add(textField_1);
textField_1.setColumns(10);
JButton btnNewButton = new JButton("1");
btnNewButton.setForeground(Color.RED);
btnNewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeDigit(1);
}
});
btnNewButton.setBounds(10, 72, 50, 50);
contentPane.add(btnNewButton);
JButton button = new JButton("2");
button.setForeground(Color.RED);
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeDigit(2);
}
});
button.setBounds(70, 72, 50, 50);
contentPane.add(button);
JButton button_1 = new JButton("3");
button_1.setForeground(Color.RED);
button_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeDigit(3);
}
});
button_1.setBounds(130, 72, 50, 50);
contentPane.add(button_1);
JButton button_2 = new JButton("+");
button_2.setForeground(Color.RED);
button_2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeOperator("+");
}
});
button_2.setBounds(190, 72, 50, 50);
contentPane.add(button_2);
JButton button_3 = new JButton("-");
button_3.setForeground(Color.RED);
button_3.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeOperator("-");
}
});
button_3.setBounds(250, 72, 50, 50);
contentPane.add(button_3);
JButton button_4 = new JButton("4");
button_4.setForeground(Color.RED);
button_4.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeDigit(4);
}
});
button_4.setBounds(10, 132, 50, 50);
contentPane.add(button_4);
JButton button_5 = new JButton("5");
button_5.setForeground(Color.RED);
button_5.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeDigit(5);
}
});
button_5.setBounds(70, 132, 50, 50);
contentPane.add(button_5);
JButton button_6 = new JButton("6");
button_6.setForeground(Color.RED);
button_6.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeDigit(6);
}
});
button_6.setBounds(130, 132, 50, 50);
contentPane.add(button_6);
JButton button_7 = new JButton("*");
button_7.setForeground(Color.RED);
button_7.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeOperator("*");
}
});
button_7.setBounds(190, 132, 50, 50);
contentPane.add(button_7);
JButton button_8 = new JButton("/");
button_8.setForeground(Color.RED);
button_8.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeOperator("/");
}
});
button_8.setBounds(249, 132, 50, 50);
contentPane.add(button_8);
JButton button_9 = new JButton("7");
button_9.setForeground(Color.RED);
button_9.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeDigit(7);
}
});
button_9.setBounds(10, 192, 50, 50);
contentPane.add(button_9);
JButton button_10 = new JButton("8");
button_10.setForeground(Color.RED);
button_10.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeDigit(8);
}
});
button_10.setBounds(72, 192, 50, 50);
contentPane.add(button_10);
JButton button_11 = new JButton("9");
button_11.setForeground(Color.RED);
button_11.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeDigit(9);
}
});
button_11.setBounds(132, 192, 50, 50);
contentPane.add(button_11);
JButton btnC = new JButton("c");
btnC.setForeground(Color.RED);
btnC.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
textField.setText("");
textField_1.setText("");
sum=0;
b=false;
opo="None";
}
});
btnC.setBounds(249, 192, 50, 50);
contentPane.add(btnC);
JButton btnEsc = new JButton("=");
btnEsc.setForeground(Color.RED);
btnEsc.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeOperator("=");
}
});
btnEsc.setBounds(190, 192, 50, 50);
contentPane.add(btnEsc);
JButton button_12 = new JButton("0");
button_12.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JudgeDigit(0);
}
});
button_12.setForeground(Color.RED);
button_12.setBounds(10, 252, 50, 50);
contentPane.add(button_12);
JButton button_13 = new JButton("\u221A");
button_13.setForeground(Color.RED);
button_13.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
Double D=Math.sqrt(Double.parseDouble(textField.getText()));
textField.setText(String.valueOf(D));
}
});
button_13.setBounds(72, 252, 50, 50);
contentPane.add(button_13);
JButton button_14 = new JButton(".");
button_14.setForeground(Color.RED);
button_14.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
textField.setText(textField.getText() + ".");
}
});
button_14.setBounds(132, 252, 50, 50);
contentPane.add(button_14);
JButton btnE_1 = new JButton("x2");
btnE_1.setForeground(Color.RED);
btnE_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
Double D=Math.pow(Double.parseDouble(textField.getText()),2);
textField.setText(String.valueOf(D));
}
});
btnE_1.setBounds(190, 252, 50, 50);
contentPane.add(btnE_1);
JButton btnE = new JButton("E");
btnE.setForeground(Color.RED);
btnE.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
btnE.setBounds(250, 252, 50, 50);
contentPane.add(btnE);
}
private class SwingAction extends AbstractAction {
public SwingAction() {
putValue(NAME, "SwingAction");
putValue(SHORT_DESCRIPTION, "Some short description");
}
public void actionPerformed(ActionEvent e) {
}
}
}
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