import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.lang.String.*;
public class calculator
{
public static void main(String[] args)
{
ButtonFrame frame = new ButtonFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.show();
}
}class ButtonFrame extends JFrame
{
public ButtonFrame()
{
setTitle("calculator");
setSize(WIDTH,HEIGHT);
ButtonPanel panel=new ButtonPanel();
Container contentPane=getContentPane();
contentPane.add(panel);
setResizable(false);
}
public static final int WIDTH=300;
public static final int HEIGHT=300;
}class ButtonPanel extends JPanel
{
int result=0;
int num1=0;
static int j=0;
static int i=1;
JTextArea area=null;
int a[]=new int[100];
String b[]=new String [50];
public ButtonPanel()
{ for (int s=0;s<100;s++)
{
a[s]=0;
}
for(int t=0;t<50;t++)
{
b[t]="+";
}
area=new JTextArea(1,25);
area.setEditable(false);
JScrollPane pane=new JScrollPane(area);
add(pane);
System.out.println();
JButton Button0=new JButton("0");
JButton Button1=new JButton("1");
JButton Button2=new JButton("2");
JButton Button3=new JButton("3");
JButton Button4=new JButton("4");
JButton Button5=new JButton("5");
JButton Button6=new JButton("6");
JButton Button7=new JButton("7");
JButton Button8=new JButton("8");
JButton Button9=new JButton("9");
JButton Button10=new JButton("vc");
JButton Button11=new JButton("+");
JButton Button12=new JButton("-");
JButton Button13=new JButton("*");
JButton Button14=new JButton("/");
JButton Button15=new JButton("=");
add(Button0);
add(Button1);
add(Button2);
add(Button3);
add(Button4);
add(Button5);
add(Button6);
add(Button7);
add(Button8);
add(Button9);
add(Button10);
add(Button11);
add(Button12);
add(Button13);
add(Button14);
add(Button15);ButtonActionA ButtonAction0=new ButtonActionA("0");
ButtonActionA ButtonAction1=new ButtonActionA("1");
ButtonActionA ButtonAction2=new ButtonActionA("2");
ButtonActionA ButtonAction3=new ButtonActionA("3");
ButtonActionA ButtonAction4=new ButtonActionA("4");
ButtonActionA ButtonAction5=new ButtonActionA("5");
ButtonActionA ButtonAction6=new ButtonActionA("6");
ButtonActionA ButtonAction7=new ButtonActionA("7");
ButtonActionA ButtonAction8=new ButtonActionA("8");
ButtonActionA ButtonAction9=new ButtonActionA("9");
ButtonActionD ButtonAction10=new ButtonActionD("0");
ButtonActionB ButtonAction11=new ButtonActionB("+");
ButtonActionB ButtonAction12=new ButtonActionB("-");
ButtonActionB ButtonAction13=new ButtonActionB("*");
ButtonActionB ButtonAction14=new ButtonActionB("/");
ButtonActionC ButtonAction15=new ButtonActionC("=");
Button0.addActionListener(ButtonAction0);
Button1.addActionListener(ButtonAction1);
Button2.addActionListener(ButtonAction2);
Button3.addActionListener(ButtonAction3);
Button4.addActionListener(ButtonAction4);
Button5.addActionListener(ButtonAction5);
Button6.addActionListener(ButtonAction6);
Button7.addActionListener(ButtonAction7);
Button8.addActionListener(ButtonAction8);
Button9.addActionListener(ButtonAction9);
Button10.addActionListener(ButtonAction10);
Button11.addActionListener(ButtonAction11);
Button12.addActionListener(ButtonAction12);
Button13.addActionListener(ButtonAction13);
Button14.addActionListener(ButtonAction14);
Button15.addActionListener(ButtonAction15);
}
public void paintComponent(Graphics g)
{
super.paintComponent(g);
area.setText(ButtonText);
System.out.println();
}
private class ButtonActionA implements ActionListener //
{
public ButtonActionA(String text)
{
clicktext = text;
}
public void actionPerformed(ActionEvent event)
{
//ButtonText=clicktext;
//repaint();
/*int count=0;
if (count==0)
{
ButtonText=clicktext;
rapain();
count++;
}
if()*/
////
num1=(num1*10)+Integer.parseInt(clicktext);
ButtonText =new String(num1+"");
a[i]=num1;
i++;
repaint();
String string=ButtonText;
if(string.startsWith("0"))
{
ButtonText=clicktext;
}
if (! ButtonText.matches("^\\d"))
{ //这样也可以判断
ButtonText = ButtonText.replaceAll("^\\D*", "");
}
}
private String clicktext="0";
}
public String ButtonText="0";
private class ButtonActionB implements ActionListener//Ӽ˳
{
public ButtonActionB(String text)
{
clicktext = text;
}
public void actionPerformed(ActionEvent event)
{
ButtonText=clicktext;
repaint();
b[j]=clicktext;
j++;
num1=0;
}
private String clicktext="0";
}
private class ButtonActionC implements ActionListener//
{
public ButtonActionC(String text)
{
clicktext = text;
}
public void actionPerformed(ActionEvent event)
{
if(b[j-1]=="+")
{
result=a[i-1]+a[i-2];
}
if(b[j-1]=="-")
{
result=a[i-1]-a[i-2];
}
if(b[j-1]=="*")
{
result=a[i-1]*a[i-2];
}
if(b[j-1]=="/")
{
result=a[i-1]/a[i-2];
}
num1=0;
a[i]=result;
i++;
ButtonText=new String(result+"");
repaint();
}
//ButtonText=new String("0"+"");
private String clicktext="0";
}
private class ButtonActionD implements ActionListener//
{
public ButtonActionD(String text)
{
clicktext = text;
}
public void actionPerformed(ActionEvent event)
{
for (int m=0;m<100;m++)
{
a[m]=0;
}
for(int n=0;n<50;n++)
{
b[n]="+";
}
result=0;
ButtonText="0";
repaint();
}
}
private String clicktext="0";
}
import java.awt.event.*;
import javax.swing.*;
import java.lang.String.*;
public class calculator
{
public static void main(String[] args)
{
ButtonFrame frame = new ButtonFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.show();
}
}class ButtonFrame extends JFrame
{
public ButtonFrame()
{
setTitle("calculator");
setSize(WIDTH,HEIGHT);
ButtonPanel panel=new ButtonPanel();
Container contentPane=getContentPane();
contentPane.add(panel);
setResizable(false);
}
public static final int WIDTH=300;
public static final int HEIGHT=300;
}class ButtonPanel extends JPanel
{
int result=0;
int num1=0;
static int j=0;
static int i=1;
JTextArea area=null;
int a[]=new int[100];
String b[]=new String [50];
public ButtonPanel()
{ for (int s=0;s<100;s++)
{
a[s]=0;
}
for(int t=0;t<50;t++)
{
b[t]="+";
}
area=new JTextArea(1,25);
area.setEditable(false);
JScrollPane pane=new JScrollPane(area);
add(pane);
System.out.println();
JButton Button0=new JButton("0");
JButton Button1=new JButton("1");
JButton Button2=new JButton("2");
JButton Button3=new JButton("3");
JButton Button4=new JButton("4");
JButton Button5=new JButton("5");
JButton Button6=new JButton("6");
JButton Button7=new JButton("7");
JButton Button8=new JButton("8");
JButton Button9=new JButton("9");
JButton Button10=new JButton("vc");
JButton Button11=new JButton("+");
JButton Button12=new JButton("-");
JButton Button13=new JButton("*");
JButton Button14=new JButton("/");
JButton Button15=new JButton("=");
add(Button0);
add(Button1);
add(Button2);
add(Button3);
add(Button4);
add(Button5);
add(Button6);
add(Button7);
add(Button8);
add(Button9);
add(Button10);
add(Button11);
add(Button12);
add(Button13);
add(Button14);
add(Button15);ButtonActionA ButtonAction0=new ButtonActionA("0");
ButtonActionA ButtonAction1=new ButtonActionA("1");
ButtonActionA ButtonAction2=new ButtonActionA("2");
ButtonActionA ButtonAction3=new ButtonActionA("3");
ButtonActionA ButtonAction4=new ButtonActionA("4");
ButtonActionA ButtonAction5=new ButtonActionA("5");
ButtonActionA ButtonAction6=new ButtonActionA("6");
ButtonActionA ButtonAction7=new ButtonActionA("7");
ButtonActionA ButtonAction8=new ButtonActionA("8");
ButtonActionA ButtonAction9=new ButtonActionA("9");
ButtonActionD ButtonAction10=new ButtonActionD("0");
ButtonActionB ButtonAction11=new ButtonActionB("+");
ButtonActionB ButtonAction12=new ButtonActionB("-");
ButtonActionB ButtonAction13=new ButtonActionB("*");
ButtonActionB ButtonAction14=new ButtonActionB("/");
ButtonActionC ButtonAction15=new ButtonActionC("=");
Button0.addActionListener(ButtonAction0);
Button1.addActionListener(ButtonAction1);
Button2.addActionListener(ButtonAction2);
Button3.addActionListener(ButtonAction3);
Button4.addActionListener(ButtonAction4);
Button5.addActionListener(ButtonAction5);
Button6.addActionListener(ButtonAction6);
Button7.addActionListener(ButtonAction7);
Button8.addActionListener(ButtonAction8);
Button9.addActionListener(ButtonAction9);
Button10.addActionListener(ButtonAction10);
Button11.addActionListener(ButtonAction11);
Button12.addActionListener(ButtonAction12);
Button13.addActionListener(ButtonAction13);
Button14.addActionListener(ButtonAction14);
Button15.addActionListener(ButtonAction15);
}
public void paintComponent(Graphics g)
{
super.paintComponent(g);
area.setText(ButtonText);
System.out.println();
}
private class ButtonActionA implements ActionListener //
{
public ButtonActionA(String text)
{
clicktext = text;
}
public void actionPerformed(ActionEvent event)
{
//ButtonText=clicktext;
//repaint();
/*int count=0;
if (count==0)
{
ButtonText=clicktext;
rapain();
count++;
}
if()*/
////
num1=(num1*10)+Integer.parseInt(clicktext);
ButtonText =new String(num1+"");
a[i]=num1;
i++;
repaint();
String string=ButtonText;
if(string.startsWith("0"))
{
ButtonText=clicktext;
}
if (! ButtonText.matches("^\\d"))
{ //这样也可以判断
ButtonText = ButtonText.replaceAll("^\\D*", "");
}
}
private String clicktext="0";
}
public String ButtonText="0";
private class ButtonActionB implements ActionListener//Ӽ˳
{
public ButtonActionB(String text)
{
clicktext = text;
}
public void actionPerformed(ActionEvent event)
{
ButtonText=clicktext;
repaint();
b[j]=clicktext;
j++;
num1=0;
}
private String clicktext="0";
}
private class ButtonActionC implements ActionListener//
{
public ButtonActionC(String text)
{
clicktext = text;
}
public void actionPerformed(ActionEvent event)
{
if(b[j-1]=="+")
{
result=a[i-1]+a[i-2];
}
if(b[j-1]=="-")
{
result=a[i-1]-a[i-2];
}
if(b[j-1]=="*")
{
result=a[i-1]*a[i-2];
}
if(b[j-1]=="/")
{
result=a[i-1]/a[i-2];
}
num1=0;
a[i]=result;
i++;
ButtonText=new String(result+"");
repaint();
}
//ButtonText=new String("0"+"");
private String clicktext="0";
}
private class ButtonActionD implements ActionListener//
{
public ButtonActionD(String text)
{
clicktext = text;
}
public void actionPerformed(ActionEvent event)
{
for (int m=0;m<100;m++)
{
a[m]=0;
}
for(int n=0;n<50;n++)
{
b[n]="+";
}
result=0;
ButtonText="0";
repaint();
}
}
private String clicktext="0";
}
解决方案 »
- quartz在调用scheduleJob方法的时候偶尔会跑出异常
- mysql 连续查询10次左右就假死,用struts+spring+hibernet 用的spring 里自带的hibernet的方法
- 请教ibatis配置问题
- J2ME的前景
- richfaces的jar一加上去怎么对应的服务启动不起来?
- 网上付账的安全问题
- Form表单大批文本框中的值怎么写到数据库表里面?
- 急救!配置axis,将axis目录考到tomcat的webapps目录下,输入http://localhost:8080/axis报错404
- 关于struts2对form表单和ajax请求中参数的ognl注入
- JBOSS部署.ear文件,出现错误commons-io.jar which could not be opened, entry ignored
- struts2的默认ACTION会执行execute()方法完成数据交互吗?还是只是个静态页面?
- webservice,XFire,这个问题怎么解决?
// 上次也有一个一样的。
imrort java.awt.*;
import java.awt.event.*;
import javax.swing.*;public class calculator {
public static void main(String[] args) {
ButtonFrame frame = new ButtonFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// frame.show();
// 过时了
frame.setVisible(true);
}
}class ButtonFrame extends JFrame { private static final long serialVersionUID = 1L; public ButtonFrame() {
setTitle("calculator");
setSize(WIDTH, HEIGHT);
ButtonPanel panel = new ButtonPanel();
Container contentPane = getContentPane();
contentPane.add(panel);
setResizable(false);
} public static final int WIDTH = 300;
public static final int HEIGHT = 300;
}class ButtonPanel extends JPanel { private static final long serialVersionUID = 1L;
int result = 0;
int num1 = 0;
static int j = 0;
static int i = 1;
JTextArea area = null;
int a[] = new int[100];
String b[] = new String[50]; public ButtonPanel() { for (int s = 0; s < 100; s++) {
a[s] = 0;
} for (int t = 0; t < 50; t++) {
b[t] = "+";
} area = new JTextArea(1, 25);
area.setEditable(false);
JScrollPane pane = new JScrollPane(area);
add(pane);
System.out.println();
JButton Button0 = new JButton("0");
JButton Button1 = new JButton("1");
JButton Button2 = new JButton("2");
JButton Button3 = new JButton("3");
JButton Button4 = new JButton("4");
JButton Button5 = new JButton("5");
JButton Button6 = new JButton("6");
JButton Button7 = new JButton("7");
JButton Button8 = new JButton("8");
JButton Button9 = new JButton("9");
JButton Button10 = new JButton("vc");
JButton Button11 = new JButton("+");
JButton Button12 = new JButton("-");
JButton Button13 = new JButton("*");
JButton Button14 = new JButton("/");
JButton Button15 = new JButton("=");
add(Button0);
add(Button1);
add(Button2);
add(Button3);
add(Button4);
add(Button5);
add(Button6);
add(Button7);
add(Button8);
add(Button9);
add(Button10);
add(Button11);
add(Button12);
add(Button13);
add(Button14);
add(Button15); ButtonActionA ButtonAction0 = new ButtonActionA("0");
ButtonActionA ButtonAction1 = new ButtonActionA("1");
ButtonActionA ButtonAction2 = new ButtonActionA("2");
ButtonActionA ButtonAction3 = new ButtonActionA("3");
ButtonActionA ButtonAction4 = new ButtonActionA("4");
ButtonActionA ButtonAction5 = new ButtonActionA("5");
ButtonActionA ButtonAction6 = new ButtonActionA("6");
ButtonActionA ButtonAction7 = new ButtonActionA("7");
ButtonActionA ButtonAction8 = new ButtonActionA("8");
ButtonActionA ButtonAction9 = new ButtonActionA("9");
ButtonActionD ButtonAction10 = new ButtonActionD("0");
ButtonActionB ButtonAction11 = new ButtonActionB("+");
ButtonActionB ButtonAction12 = new ButtonActionB("-");
ButtonActionB ButtonAction13 = new ButtonActionB("*");
ButtonActionB ButtonAction14 = new ButtonActionB("/");
ButtonActionC ButtonAction15 = new ButtonActionC("=");
Button0.addActionListener(ButtonAction0);
Button1.addActionListener(ButtonAction1);
Button2.addActionListener(ButtonAction2);
Button3.addActionListener(ButtonAction3);
Button4.addActionListener(ButtonAction4);
Button5.addActionListener(ButtonAction5);
Button6.addActionListener(ButtonAction6);
Button7.addActionListener(ButtonAction7);
Button8.addActionListener(ButtonAction8);
Button9.addActionListener(ButtonAction9);
Button10.addActionListener(ButtonAction10);
Button11.addActionListener(ButtonAction11);
Button12.addActionListener(ButtonAction12);
Button13.addActionListener(ButtonAction13);
Button14.addActionListener(ButtonAction14);
Button15.addActionListener(ButtonAction15); } public void paintComponent(Graphics g) {
super.paintComponent(g);
area.setText(ButtonText);
System.out.println();
} private class ButtonActionA implements ActionListener //
{
public ButtonActionA(String text) {
clicktext = text;
} public void actionPerformed(ActionEvent event) {
// ButtonText=clicktext;
// repaint();
/*
* int count=0; if (count==0) { ButtonText=clicktext; rapain();
* count++; } if()
*/ // //
num1 = (num1 * 10) + Integer.parseInt(clicktext); ButtonText = new String(num1 + "");
a[i] = num1;
i++;
repaint();
String string = ButtonText;
if (string.startsWith("0")) {
ButtonText = clicktext;
}
if (!ButtonText.matches("^\\d")) { // 这样也可以判断
ButtonText = ButtonText.replaceAll("^\\D*", "");
} } private String clicktext = "0";
} public String ButtonText = "0"; private class ButtonActionB implements ActionListener// Ӽ˳
{
public ButtonActionB(String text) {
clicktext = text;
} public void actionPerformed(ActionEvent event) { ButtonText = clicktext;
repaint();
b[j] = clicktext;
j++;
num1 = 0; } private String clicktext = "0";
} private class ButtonActionC implements ActionListener//
{
public ButtonActionC(String text) {
clicktext = text;
} public void actionPerformed(ActionEvent event) { if (b[j - 1] == "+") {
result = a[i - 1] + a[i - 2];
}
if (b[j - 1] == "-") {
result = a[i - 1] - a[i - 2];
}
if (b[j - 1] == "*") {
result = a[i - 1] * a[i - 2];
}
if (b[j - 1] == "/") {
result = a[i - 1] / a[i - 2]; }
num1 = 0;
a[i] = result;
i++;
ButtonText = new String(result + "");
repaint(); } // ButtonText=new String("0"+"");
@SuppressWarnings("unused")
private String clicktext = "0"; } private class ButtonActionD implements ActionListener//
{
public ButtonActionD(String text) {
clicktext = text;
} public void actionPerformed(ActionEvent event) {
for (int m = 0; m < 100; m++) {
a[m] = 0;
}
for (int n = 0; n < 50; n++) {
b[n] = "+";
}
result = 0;
ButtonText = "0"; repaint(); }
} @SuppressWarnings("unused")
private String clicktext = "0";
}