java加减乘除计算器界面编程？ java计算器程序代码
- 用Java编写一个简单的计算器，可以实现加减乘除的计算，并且有一个归零按钮，其他不需要什么复杂的东
- 求简单java写计算器代码加减乘除
- java：编写一个计算器小程序，要求可以做加减乘除运算
- 求用Java 编写的简单计算器...支持加减乘除就可以~ 尽量使代 码简单....谢了~
用Java编写一个简单的计算器，可以实现加减乘除的计算，并且有一个归零按钮，其他不需要什么复杂的东
简单的啊，我有个自己编的完美的，不过给你改成简单的吧。有注释。 import java.awt.*; import javax.swing.*; import javax.swing.border.*; import java.awt.event.*; import java.text.*; public class Calculator extends JFrame implements ActionListener { int m=0,i,n=0; float sum=0,s1,s2,equ; String v=""; JPanel delete_main = new JPanel(); JPanel delete = new JPanel(); JPanel buttons = new JPanel(); JTextField text = new JTextField("0"); JButton backspace = new JButton("Backspace"); JButton c = new JButton("C"); JButton ce = new JButton("CE"); JButton bt1= new JButton("1"); JButton bt2= new JButton("2"); JButton bt3= new JButton("3"); JButton bt4= new JButton("+"); JButton bt5 = new JButton("4"); JButton bt6= new JButton("5"); JButton bt7= new JButton("6"); JButton bt8= new JButton("-"); JButton bt9= new JButton("7"); JButton bt10= new JButton("8"); JButton bt11= new JButton("9"); JButton bt12= new JButton("*"); JButton bt13= new JButton("0"); JButton bt14= new JButton("."); JButton bt15= new JButton("="); JButton bt16= new JButton("/"); public Calculator() { super("简易计算器--超人不会飞荣誉出品"); delete.setLayout(new GridLayout(1, 3, 15, 15)); delete.add(backspace); delete.add(c); delete.add(ce); delete.setBorder(new LineBorder(delete.getBackground(), 5));//添加边框 c.addActionListener(this); ce.addActionListener(this); backspace.addActionListener(this); text.setFont(new Font("宋体", Font.BOLD +Font.ITALIC, 20)); // 设置显示字体 text.setBackground(Color.getHSBColor(44, 3, 87)); text.setBorder(new LineBorder(Color.ORANGE, 1)); text.setHorizontalAlignment(SwingConstants.RIGHT); // 设置鼠标靠右 text.setEditable(false); // 屏蔽键盘输入，防止非法字符 delete_main.setLayout(new GridLayout(2, 1, 10, 10)); delete_main.add(text, BorderLayout.NORTH); delete_main.add(delete, BorderLayout.SOUTH); buttons.setLayout(new GridLayout(4, 5, 10, 20)); bt1.addActionListener(this); // 为各个按钮添加事件监听 buttons.add(bt1); bt2.addActionListener(this); buttons.add(bt2); bt3.addActionListener(this); buttons.add(bt3); bt4.addActionListener(this); buttons.add(bt4); bt5.addActionListener(this); buttons.add(bt5); bt6.addActionListener(this); buttons.add(bt6); bt7.addActionListener(this); buttons.add(bt7); bt8.addActionListener(this); buttons.add(bt8); bt9.addActionListener(this); buttons.add(bt9); bt10.addActionListener(this); buttons.add(bt10); bt11.addActionListener(this); buttons.add(bt11); bt12.addActionListener(this); buttons.add(bt12); bt13.addActionListener(this); buttons.add(bt13); bt14.addActionListener(this); buttons.add(bt14); bt15.addActionListener(this); buttons.add(bt15); bt16.addActionListener(this); buttons.add(bt16); buttons.setBorder(new LineBorder(delete.getBackground(), 5));//边框 this.setLayout(new BorderLayout()); this.add(delete_main, BorderLayout.NORTH); this.add(buttons, BorderLayout.SOUTH); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //添加关闭窗口事件监听器 pack(); //自动设置窗体大小 setResizable(false); // 设置面板大小不可变 setVisible(true); Toolkit tk = this.getToolkit(); Dimension de = tk.getScreenSize(); setBounds((de.width - this.getWidth()) / 2,(de.height - this.getHeight()) / 2, this.getWidth(), this.getHeight()); //使之居于屏幕正中央 } public void actionPerformed(ActionEvent e) { //事件响应 //Object source = e.getSource(); if(e.getSource()==backspace) //退格键 { v=v.substring(0,v.length() - 1); text.setText(v); } if(e.getSource()==c||e.getSource()==ce) //清空键 { m=0; sum=0; v="";s1=0;s2=0;i=0; text.setText("0"); } if(e.getSource()==bt1) { if(m==1) v=""; v=v+"1"; text.setText(v); m=0;n=1; } if(e.getSource()==bt2) { if(m==1) v=""; v=v+"2"; text.setText(v); m=0;n=1; } if(e.getSource()==bt3) { if(m==1) v=""; v=v+"3"; text.setText(v); m=0;n=1; } if(e.getSource()==bt4) // +按钮 { if(n==1) //如果按之前按了0~9数字键，就运算 { sum=Float.parseFloat(v); } else //如果按之前没按0~9数字键，直接按了运算符，不做任何操作 { } i=1; m=1;n=0; } if(e.getSource()==bt5) { if(m==1) v=""; v=v+"4"; text.setText(v); m=0;n=1; } if(e.getSource()==bt6) { if(m==1) v=""; v=v+"5"; text.setText(v); m=0;n=1; } if(e.getSource()==bt7) { if(m==1) v=""; v=v+"6"; text.setText(v); m=0;n=1; } if(e.getSource()==bt8) // -按钮 { if(n==1) { sum=Float.parseFloat(v); } else { } i=2; m=1;n=0; } if(e.getSource()==bt9) { if(m==1) v=""; v=v+"7"; text.setText(v); m=0;n=1; } if(e.getSource()==bt10) { if(m==1) v=""; v=v+"8"; text.setText(v); m=0;n=1; } if(e.getSource()==bt11) { if(m==1) v=""; v=v+"9"; text.setText(v); m=0;n=1; } if(e.getSource()==bt12) //*按钮 { if(n==1) { sum=Float.parseFloat(v); } else { } i=3; m=1;n=0; } if(e.getSource()==bt13) { if(m==1) v=""; v=v+"0"; text.setText(v); m=0;n=1; } if(e.getSource()==bt14) { } if(e.getSource()==bt15) //等于按钮 { if(m==1) // 如果输入了+=等非法输入，不做任何操作 { } else { s1=sum; s2=Float.parseFloat(v); switch(i) { case 0: //如果按过数字键后直接按等号，直接输出 equ=Float.parseFloat(v); break; case 1: equ=s1+s2; break; case 2: equ=s1-s2; break; case 3: equ=s1*s2; break; case 4: equ=s1/s2; break; } sum=0;v=""; //清空运算数 v=String.valueOf(equ); text.setText(String.valueOf(equ)); i=0; } } if(e.getSource()==bt16) // 除按钮 { if(n==1) { sum=Float.parseFloat(v); } else { } i=4; m=1;n=0; } } public static void main(String[] args) { Calculator bt=new Calculator(); } }
求简单java写计算器代码加减乘除
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Calculator extends JFrame implements ActionListener
{
private boolean dotExist, operated, equaled; // 帮助运算的布尔变量
private double storedNumber; // 目前的结果
private char lastOperator; // 表示上一运算符
private JTextField operation; // 结果栏
private JButton dot, plus, minus, multi, div, sqrt, equal, changePN, clear; // 运算符
private JButton[] numbers; // 数字
// 构造者
public Calculator()
{
setTitle("Calculator");
// 初始化变量
dotExist = false; // 表示当前的数是否有小数点
operated = false; // 表示任意运算符是否被按下
equaled = false; // 表示等号是否被按下
storedNumber = 0;
lastOperator = '?';
// 初始化窗口变量
operation = new JTextField("0");
operation.setEditable(false);
numbers = new JButton[10];
for (int i = 0; i < 10; i++)
numbers[i] = new JButton("" + i);
dot = new JButton(".");
plus = new JButton("+");
minus = new JButton("-");
multi = new JButton("*");
div = new JButton("/");
sqrt = new JButton("√");
equal = new JButton("=");
changePN = new JButton("±");
clear = new JButton("AC");
// 将窗口物体放入窗口
GridBagLayout layout = new GridBagLayout();
getContentPane().setLayout(layout);
addComponent(layout, operation, 0, 0, 4, 1);
addComponent(layout, numbers[1], 1, 0, 1, 1);
addComponent(layout, numbers[2], 1, 1, 1, 1);
addComponent(layout, numbers[3], 1, 2, 1, 1);
addComponent(layout, numbers[4], 2, 0, 1, 1);
addComponent(layout, numbers[5], 2, 1, 1, 1);
addComponent(layout, numbers[6], 2, 2, 1, 1);
addComponent(layout, numbers[7], 3, 0, 1, 1);
addComponent(layout, numbers[8], 3, 1, 1, 1);
addComponent(layout, numbers[9], 3, 2, 1, 1);
addComponent(layout, dot, 4, 0, 1, 1);
addComponent(layout, numbers[0], 4, 1, 1, 1);
addComponent(layout, sqrt, 4, 2, 1, 1);
addComponent(layout, plus, 1, 3, 1, 1);
addComponent(layout, minus, 2, 3, 1, 1);
addComponent(layout, multi, 3, 3, 1, 1);
addComponent(layout, div, 4, 3, 1, 1);
addComponent(layout, equal, 5, 0, 2, 1);
addComponent(layout, changePN, 5, 2, 1, 1);
addComponent(layout, clear, 5, 3, 1, 1);
}
// 对按钮进行反应的方法
public void actionPerformed(ActionEvent e)
{
JButton btn = (JButton)e.getSource();
if (btn == clear)
{
operation.setText("0");
dotExist = false;
storedNumber = 0;
lastOperator = '?';
}
else if (btn == equal)
{
operate('=');
equaled = true;
}
else if (btn == plus)
{
operate('+');
equaled = false;
}
else if (btn == minus)
{
operate('-');
equaled = false;
}
else if (btn == multi)
{
operate('*');
equaled = false;
}
else if (btn == div)
{
operate('/');
equaled = false;
}
else if (btn == changePN)
{
operate('p');
operate('=');
equaled = true;
}
else if (btn == sqrt)
{
operate('s');
operate('=');
equaled = true;
}
else
{
if (equaled)
storedNumber = 0;
for (int i = 0; i < 10; i++)
if (btn == numbers[i])
{
if (operation.getText().equals("0"))
operation.setText("" + i);
else if(! operated)
operation.setText(operation.getText() + i);
else
{
operation.setText("" + i);
operated = false;
}
}
if (btn == dot && ! dotExist)
{
operation.setText(operation.getText() + ".");
dotExist = true;
}
}
}
// 进行运算的方法
private void operate(char operator)
{
double currentNumber = Double.valueOf(operation.getText()).doubleValue();
if (lastOperator == '?')
storedNumber = currentNumber;
else if (lastOperator == '+')
storedNumber += currentNumber;
else if (lastOperator == '-')
storedNumber -= currentNumber;
else if (lastOperator == '*')
storedNumber *= currentNumber;
else if (lastOperator == '/')
storedNumber /= currentNumber;
else if (lastOperator == 'p')
storedNumber *= -1;
else if (lastOperator == 's')
storedNumber = Math.sqrt(currentNumber);
else if (lastOperator == '=' && equaled)
storedNumber = currentNumber;
operation.setText("" + storedNumber);
operated = true;
lastOperator = operator;
}
// 快捷使用GridBagLayout的方法
private void addComponent(GridBagLayout layout, Component component, int row, int col, int width, int height)
{
GridBagConstraints constraints = new GridBagConstraints();
constraints.fill = GridBagConstraints.BOTH;
constraints.insets = new Insets(10, 2, 10, 2);
constraints.weightx = 100;
constraints.weighty = 100;
constraints.gridx = col;
constraints.gridy = row;
constraints.gridwidth = width;
constraints.gridheight = height;
layout.setConstraints(component, constraints);
if (component instanceof JButton)
((JButton)component).addActionListener(this);
getContentPane().add(component);
}
// 主方法初始化并显示窗口
public static void main(String[] args)
{
Calculator calc = new Calculator();
calc.setSize(290, 400);
calc.setVisible(true);
}
}
java：编写一个计算器小程序，要求可以做加减乘除运算
kankan我的
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.math.BigDecimal;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextField;
public class TestCalc implements ActionListener {
JFrame jf = new JFrame("计算器");
JPanel jp = new JPanel();
JTextField jtf = new JTextField("0.", 200);
JButton[] jb = new JButton[20];
private int tag = 0;
private double a;
private double b;
private String operator;
StringBuilder sb1 = new StringBuilder();
StringBuilder sb2 = new StringBuilder();
public TestCalc() {
jf.add(jtf, BorderLayout.NORTH);
// jtf.requestFocus();
jtf.setEditable(false);
jtf.setCaretPosition(jtf.getText().length() - 1);
jf.add(jp);
jp.setLayout(new GridLayout(5, 4, 4, 4));
String[] str = { "Back", "CE", "C", "+", "7", "8", "9", "-", "4", "5",
"6", "*", "1", "2", "3", "/", "0", "+/-", ".", "=" };
int i = 0;
for (i = 0; i < str.length; i++) {
jb[i] = new JButton(str[i]);
jp.add(jb[i]);
jb[i].addActionListener(this);
}
jf.setSize(300, 240);
// jf.setLocation(300,200);
jf.setLocationRelativeTo(null);
jf.setVisible(true);
// jf.pack();//自动调整大小；
jf.setResizable(false);// 不允许别人调大小；
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
TestCalc tc = new TestCalc();
}
public void actionPerformed(ActionEvent e) {
String command = e.getActionCommand();
if (command.matches("^[[0-9].]$")) {
if (tag == 0) {
sb1.append(command);
jtf.setText(sb1.substring(0));
} else {
sb2.append(command);
jtf.setText(sb2.substring(0));
}
} else if (command.matches("^[-/*+]$")) {
tag = 1;
operator = command;
} else {
if (command.matches("=")) {
String str1 = sb1.substring(0);
String str2 = sb2.substring(0);
if (str1 == null) {
a = 0.0;
} else {
a = Double.parseDouble(str1);
}
if (str2 == null) {
b = 0.0;
} else {
b = Double.parseDouble(str2);
}
if (operator.equals("+")) {
jtf.setText("" + (a + b));
} else if (operator.equals("-")) {
BigDecimal bd1 = new BigDecimal(Double.toString(a)); // 必须使用String做参数才可以精62616964757a686964616fe59b9ee7ad9431333264643163确运算
BigDecimal bd2 = new BigDecimal(Double.toString(b));
Double yu1 = bd1.subtract(bd2).doubleValue();
jtf.setText("" + (yu1));
} else if (operator.equals("*")) {
jtf.setText("" + (a * b));
} else if (operator.equals("/")) {
BigDecimal bd1 = new BigDecimal(Double.toString(a)); // 必须使用String做参数才可以精确运算
BigDecimal bd2 = new BigDecimal(Double.toString(b));
Double yu1 = bd1.divide(bd2).doubleValue();
jtf.setText("" + yu1);
}
tag = 0;
sb1.delete(0, sb1.length());
sb2.delete(0, sb2.length());
} else if (command.matches("C")) {
tag = 0;
sb1.delete(0, sb1.length());
sb2.delete(0, sb2.length());
jtf.setText("0.");
jtf.setCaretPosition(jtf.getText().length() - 1);
} else if (command.matches("CE")) {
tag = 0;
sb2.delete(0, sb2.length());
jtf.setText(sb1.substring(0));
} else if (command.matches("Back")) {//Back功能键的实现；
if (tag == 0) {
sb1.deleteCharAt(sb1.length() - 1);
jtf.setText(sb1.substring(0));
} else {
sb2.deleteCharAt(sb2.length() - 1);
jtf.setText(sb2.substring(0));
}
} else if (command.matches("\\+/-")) {
if (tag == 0) {
if(sb1.substring(0,1).equals("-")){
sb1.replace(0,1,"+");
}else{
sb1.insert(0, "-");
}
jtf.setText(sb1.substring(0));
} else {
if(sb2.substring(0,1).equals("-")){
sb2.replace(0,1,"+");
}else{
sb2.insert(0, "-");
}
jtf.setText(sb2.substring(0));
}
}else {
}
}
}
}
求用Java 编写的简单计算器...支持加减乘除就可以~ 尽量使代 码简单....谢了~
加减乘除括号都有了，自己改一下就OK
----------------------
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTextField;
class Stack_Float
{
float nums[];
int top;
Stack_Float()
{
nums = new float[50];
top = -1;
}
boolean IsEmpty()
{
if (top == -1)
return true;
else
return false;
}
float Pop_Stack()
{
if (top == -1)
{
return 0;
}
top--;
return nums[top + 1];
}
float GetTop()
{
return nums[top];
}
void Push_Stack(float num)
{
if (top == 49)
return;
top++;
nums[top] = num;
}
}
class Stack_Char
{
char str[];
int top;
Stack_Char()
{
str = new char[50];
top = -1;
}
boolean CanPush(char c)
{
int temp = top;
if (c == '(')
{
while (temp != -1)
{
if (str[temp] == '(')
{
return false;
}
temp--;
}
}
temp = top;
if (c == '[')
{
while (temp != -1)
{
if (str[temp] == '[' || str[temp] == '(')
{
return false;
}
temp--;
}
}
if (c == '{')
{
while (temp != -1)
{
if (str[temp] == '{' || str[temp] == '[' || str[temp] == '(')
{
return false;
}
temp--;
}
}
return true;
}
boolean IsEmpty()
{
if (top == -1)
return true;
else
return false;
}
void Push_Stack(char ch)
{
if (top == 49)
return;
top++;
str[top] = ch;
}
char Pop_Stack()
{
if (top == -1)
return '\0';
top--;
return str[top + 1];
}
char GetTop()
{
if (top == -1)
{
System.out.print("error");
System.exit(0);
}
return str[top];
}
}
public class jisuanqi extends javax.swing.JFrame implements ActionListener
{
JTextField text = new JTextField();
JTextField text1 = new JTextField();
JButton jButton1 = new JButton();
JButton jButton2 = new JButton();
JButton jButton3 = new JButton();
JButton jButton4 = new JButton();
JButton jButton5 = new JButton();
JButton jButton6 = new JButton();
JButton jButton7 = new JButton();
JButton jButton8 = new JButton();
JButton jButton9 = new JButton();
JButton jButton10 = new JButton();
JButton jButton11 = new JButton();
JButton jButton12 = new JButton();
JButton jButton13 = new JButton();
JButton jButton14 = new JButton();
JButton jButton15 = new JButton();
JButton jButton16 = new JButton();
JButton jButton17 = new JButton();
JButton jButton18 = new JButton();
JButton jButton19 = new JButton();
JButton jButton20 = new JButton();
JButton jButton21 = new JButton();
JButton jButton22 = new JButton();
String show = "";
public jisuanqi()
{
initComponents();
}
char[] TranSmit(char str[])
{
char houzhui[] = new char[50]; // 存放后缀表达式的字符串
int i = 0, j = 0;
char c = str[i];
Stack_Char s = new Stack_Char(); // 存放运算符的栈
while (c != '=') // 对算术表达式扫描未结束时
{
if (c >= '0' && c <= '9')
{
while (c >= '0' && c <= '9')// 数字直接入栈
{
houzhui[j] = c;
j++;
i++;
c = str[i];
}
houzhui[j] = '#';// 用#隔开数字
j++;
}
switch (c) // 扫描到运算符时
{
case '+':
case '-':
case '*':
case '/':
case '(':
case '[':
case '{':
if (s.IsEmpty() == true) // 栈空,直接入栈
{
s.Push_Stack(c);
i++;
c = str[i];
break;
}
if (ComPare(s.GetTop(), c) == -1) {
s.Push_Stack(c); // 入栈
i++;
c = str[i];
break;
}
if (ComPare(s.GetTop(), c) == 1) {
houzhui[j] = s.Pop_Stack();// 出栈元素存入后缀表达式
j++;
break;
}
case ')': // 扫描到 )
while (s.GetTop() != '(') // 未扫描到 ( 时,出栈
{
houzhui[j] = s.Pop_Stack();
j++;
}
s.Pop_Stack(); // '(' 出栈
i++;
c = str[i];
break;
case ']': // 扫描到 ]
while (s.GetTop() != '[') // 未扫描到 [ 时,出栈
{
houzhui[j] = s.Pop_Stack();
j++;
}
s.Pop_Stack(); // '[' 出栈
i++;
c = str[i];
break;
case '}': // 扫描到 }
while (s.GetTop() != '{') // 未扫描到 { 时,出栈
{
houzhui[j] = s.Pop_Stack();
j++;
}
s.Pop_Stack(); // '{' 出栈
i++;
c = str[i];
break;
}
}
while (s.IsEmpty() != true)// 把剩余的运算符直接出栈
{
houzhui[j] = s.Pop_Stack();
j++;
}
houzhui[j] = '=';// 后缀表达式后面加 =
j++;
houzhui[j] = '\0';
j++;
return houzhui;
}
float Count(char str[])
{
Stack_Float s = new Stack_Float();// 定义存放数字的栈
char c = str[0];
int i = 0;
float result = 0, temp, left, right;
while (c != '=') // 未扫描到 = 时
{
if (c >= '0' && c <= '9')// 扫描到数字
{
temp = 0;
while (c != '#')// 未读到分隔符时
{
temp = temp * 10 + c - '0';
i++;
c = str[i];
}
s.Push_Stack(temp);// 进栈
}
switch (c)// 扫描到运算符时
{
case '+':
{
result = s.Pop_Stack() + s.Pop_Stack();// 2个数字出栈相加
s.Push_Stack(result);// 最后得数进栈
break;
}
case '-':
{
right = s.Pop_Stack();// 右操作数出栈
left = s.Pop_Stack();// 左操作数出栈
result = left - right;
s.Push_Stack(result);
break;
}
case '*':
{
result = s.Pop_Stack() * s.Pop_Stack();// 2个数字出栈相乘
s.Push_Stack(result);
break;
}
case '/':
{
right = s.Pop_Stack();// 右操作数出栈
left = s.Pop_Stack();// 左操作数出栈
result = left / right;
s.Push_Stack(result);
break;
}
}
i++;
c = str[i];
}
return result;
}
int ComPare(char a, char b) // 判断运算符的优先级函数
{
int s[][] = {// 栈顶元素高于算术表达式中的元素时, 返回 1,否则返回 -1
{ 1, 1, -1, -1, -1, 1, -1, 1, -1, 1 },
{ 1, 1, -1, -1, -1, 1, -1, 1, -1, 1 },
{ 1, 1, 1, 1, -1, 1, -1, 1, -1, 1 },
{ 1, 1, 1, 1, -1, 1, -1, 1, -1, 1 },
{ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
{ 1, 1, 1, 1, -1, 1, -1, -1, -1, -1 },
{ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
{ 1, 1, 1, 1, -1, -1, -1, -1, -1, 1 },
{ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
{ 1, 1, 1, 1, -1, -1, -1, -1, -1, -1 } };
char x1[] = { '+', '-', '*', '/', '(', ')', '[', ']', '{', '}' };// 栈顶元素
char x2[] = { '+', '-', '*', '/', '(', ')', '[', ']', '{', '}' };// 算术表达式中的元素
int k = 0, m, n = 0;
for (m = 0; m < 10; m++) // 查找2个进行比较的运算符在表中的位置,并返回比较结果
{
for (n = 0; n < 10; n++)
{
if (x1[m] == a && x2[n] == b)
{
k = 1;
break; // 找到比较结果后,跳出循环
}
}
if (k == 1)
break;
}
return s[m][n];// 返回比较结果
}
public void actionPerformed(ActionEvent e)
{
if (e.getSource() == jButton1)
{
show += "1";
text.setText(show);
}
if (e.getSource() == jButton2)
{
show += "2";
text.setText(show);
}
if (e.getSource() == jButton3)
{
show += "3";
text.setText(show);
}
if (e.getSource() == jButton4)
{
show += "4";
text.setText(show);
}
if (e.getSource() == jButton5)
{
show += "5";
text.setText(show);
}
if (e.getSource() == jButton6)
{
show += "6";
text.setText(show);
}
if (e.getSource() == jButton7)
{
show += "7";
text.setText(show);
}
if (e.getSource() == jButton8)
{
show += "8";
text.setText(show);
}
if (e.getSource() == jButton9)
{
show += "9";
text.setText(show);
}
if (e.getSource() == jButton10)
{
show += "0";
text.setText(show);
}
if (e.getSource() == jButton11)
{
show += "+";
text.setText(show);
}
if (e.getSource() == jButton12)
{
show += "-";
text.setText(show);
}
if (e.getSource() == jButton13)
{
show += "*";
text.setText(show);
}
if (e.getSource() == jButton14)
{
show += "/";
text.setText(show);
}
if (e.getSource() == jButton15)
{
show += "(";
text.setText(show);
}
if (e.getSource() == jButton16)
{
show += ")";
text.setText(show);
}
if (e.getSource() == jButton17)
{
show += "[";
text.setText(show);
}
if (e.getSource() == jButton18)
{
show += "]";
text.setText(show);
}
if (e.getSource() == jButton19)
{
show += "{";
text.setText(show);
}
if (e.getSource() == jButton20)
{
show += "}";
text.setText(show);
}
if (e.getSource() == jButton21)
{
show = "";
text.setText("");
text1.setText("");
}
if (e.getSource() == jButton22)
{
show += "=";
text.setText(show);
char str1[] = new char[50];
char str2[] = new char[50];
float result = 0;
str1 = show.toCharArray();
str2 = TranSmit(str1);
result = Count(str2);
text1.setText((new String(str2)).trim());
text.setText("" + result);
show = "";
}
}
private void initComponents()
{
text.setBounds(10, 10, 270, 30);
text1.setBounds(10, 50, 270, 30);
jButton1.setBounds(10, 90, 60, 25);
jButton2.setBounds(80, 90, 60, 25);
jButton3.setBounds(150, 90, 60, 25);
jButton4.setBounds(220, 90, 60, 25);
jButton5.setBounds(10, 120, 60, 25);
jButton6.setBounds(80, 120, 60, 25);
jButton7.setBounds(150, 120, 60, 25);
jButton8.setBounds(220, 120, 60, 25);
jButton9.setBounds(10, 150, 60, 25);
jButton10.setBounds(80, 150, 60, 25);
jButton11.setBounds(150, 150, 60, 25);
jButton12.setBounds(220, 150, 60, 25);
jButton13.setBounds(10, 180, 60, 25);
jButton14.setBounds(80, 180, 60, 25);
jButton15.setBounds(150, 180, 60, 25);
jButton16.setBounds(220, 180, 60, 25);
jButton17.setBounds(150, 210, 60, 25);
jButton18.setBounds(220, 210, 60, 25);
jButton19.setBounds(10, 210, 60, 25);
jButton20.setBounds(80, 210, 60, 25);
jButton21.setBounds(10, 240, 60, 25);
jButton22.setBounds(80, 240, 60, 25);
jButton1.setText("1");
jButton2.setText("2");
jButton3.setText("3");
jButton4.setText("4");
jButton5.setText("5");
jButton6.setText("6");
jButton7.setText("7");
jButton8.setText("8");
jButton9.setText("9");
jButton10.setText("0");
jButton11.setText("+");
jButton12.setText("-");
jButton13.setText("*");
jButton14.setText("/");
jButton15.setText("(");
jButton16.setText(")");
jButton17.setText("[");
jButton18.setText("]");
jButton19.setText("{");
jButton20.setText("}");
jButton21.setText("CE");
jButton22.setText("=");
jButton1.addActionListener(this);
jButton2.addActionListener(this);
jButton3.addActionListener(this);
jButton4.addActionListener(this);
jButton5.addActionListener(this);
jButton6.addActionListener(this);
jButton7.addActionListener(this);
jButton8.addActionListener(this);
jButton9.addActionListener(this);
jButton10.addActionListener(this);
jButton11.addActionListener(this);
jButton12.addActionListener(this);
jButton13.addActionListener(this);
jButton14.addActionListener(this);
jButton15.addActionListener(this);
jButton16.addActionListener(this);
jButton17.addActionListener(this);
jButton18.addActionListener(this);
jButton19.addActionListener(this);
jButton20.addActionListener(this);
jButton21.addActionListener(this);
jButton22.addActionListener(this);
add(text);
add(text1);
add(jButton1);
add(jButton2);
add(jButton3);
add(jButton4);
add(jButton5);
add(jButton6);
add(jButton7);
add(jButton8);
add(jButton9);
add(jButton10);
add(jButton11);
add(jButton12);
add(jButton13);
add(jButton14);
add(jButton15);
add(jButton16);
add(jButton17);
add(jButton18);
add(jButton19);
add(jButton20);
add(jButton21);
add(jButton22);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLayout(null);
setBounds(300, 300, 300, 300);
setVisible(true);
}
public static void main(String args[])
{
new jisuanqi();
}
}