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            java最簡單程序源代碼,Java程序源碼
            
            
            
        
            
        
            
            
            求一個用JAVA寫的簡單的記事本源代碼程序
            import java.awt.*;
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            import java.awt.event.*;
            import java.io.*;
            import java.awt.datatransfer.*;
            class MyMenuBar extends MenuBar{
            public MyMenuBar(Frame parent){
            parent.setMenuBar(this);
            }
            public void addMenus(String [] menus){
            for(int i=0;imenus.length;i++)
            add(new Menu(menus[i]));
            }
            public void addMenuItems(int menuNumber,String[] items){
            for(int i=0;iitems.length;i++){
            if(items[i]!=null)
            getMenu(menuNumber).add(new MenuItem(items[i]));
            else getMenu(menuNumber).addSeparator();
            }
            }
            public void addActionListener(ActionListener al){
            for(int i=0;igetMenuCount();i++)
            for(int j=0;jgetMenu(i).getItemCount();j++)
            getMenu(i).getItem(j).addActionListener(al);
            }
            }
            class MyFile{
            private FileDialog fDlg;
            public MyFile(Frame parent){
            fDlg=new FileDialog(parent,"",FileDialog.LOAD);
            }
            private String getPath(){
            return fDlg.getDirectory()+"\\"+fDlg.getFile();
            }
            public String getData() throws IOException{
            fDlg.setTitle("打開");
            fDlg.setMode(FileDialog.LOAD);
            fDlg.setVisible(true);
            BufferedReader br=new BufferedReader(new FileReader(getPath()));
            StringBuffer sb=new StringBuffer();
            String aline;
            while((aline=br.readLine())!=null)
            sb.append(aline+'\n');
            br.close();
            return sb.toString();
            }
            public void setData(String data) throws IOException{
            fDlg.setTitle("保存");
            fDlg.setMode(FileDialog.SAVE);
            fDlg.setVisible(true);
            BufferedWriter bw=new BufferedWriter(new FileWriter(getPath()));
            bw.write(data);
            bw.close();
            }
            }
            class MyClipboard{
            private Clipboard cb;
            public MyClipboard(){
            cb=Toolkit.getDefaultToolkit().getSystemClipboard();
            }
            public void setData(String data){
            cb.setContents(new StringSelection(data),null);
            }
            public String getData(){
            Transferable content=cb.getContents(null);
            try{
            return (String) content.getTransferData(DataFlavor.stringFlavor);
            //DataFlavor.stringFlavor會將剪貼板中的字符串轉換成Unicode碼形式的String對象。
            //DataFlavor類是與存儲在剪貼板上的數(shù)據(jù)的形式有關的類。
            }catch(Exception ue){}
            return null;
            }
            }
            class MyFindDialog extends Dialog implements ActionListener{
            private Label lFind=new Label("查找字符串");
            private Label lReplace=new Label("替換字符串");
            private TextField tFind=new TextField(10);
            private TextField tReplace=new TextField(10);
            private Button bFind=new Button("查找");
            private Button bReplace=new Button("替換");
            private TextArea ta;
            public MyFindDialog(Frame owner,TextArea ta){
            super(owner,"查找",false);
            this.ta=ta;
            setLayout(null);
            lFind.setBounds(10,30,80,20);
            lReplace.setBounds(10,70,80,20);
            tFind.setBounds(90,30,90,20);
            tReplace.setBounds(90,70,90,20);
            bFind.setBounds(190,30,80,20);
            bReplace.setBounds(190,70,80,20);
            add(lFind);
            add(tFind);
            add(bFind);
            add(lReplace);
            add(tReplace);
            add(bReplace);
            setResizable(false);
            bFind.addActionListener(this);
            bReplace.addActionListener(this);
            addWindowListener(new WindowAdapter(){
            public void windowClosing(WindowEvent e){
            MyFindDialog.this.dispose();
            }
            });
            }//構造函數(shù)結束
            public void showFind(){
            setTitle("查找");
            setSize(280,60);
            setVisible(true);
            }
            public void showReplace(){
            setTitle("查找替換");
            setSize(280,110);
            setVisible(true);
            }
            private void find(){
            String text=ta.getText();
            String str=tFind.getText();
            int end=text.length();
            int len=str.length();
            int start=ta.getSelectionEnd();
            if(start==end) start=0;
            for(;start=end-len;start++){
            if(text.substring(start,start+len).equals(str)){
            ta.setSelectionStart(start);
            ta.setSelectionEnd(start+len);
            return;
            }
            }
            //若找不到待查字符串，則將光標置于末尾
            ta.setSelectionStart(end);
            ta.setSelectionEnd(end);
            }
            public Button getBFind() {
            return bFind;
            }
            private void replace(){
            String str=tReplace.getText();
            if(ta.getSelectedText().equals(tFind.getText()))
            ta.replaceRange(str,ta.getSelectionStart(),ta.getSelectionEnd());
            else find();
            }
            public void actionPerformed(ActionEvent e) {
            if(e.getSource()==bFind)
            find();
            else if(e.getSource()==bReplace)
            replace();
            }
            }
            public class MyMemo extends Frame implements ActionListener{
            private TextArea editor=new TextArea(); //可編輯的TextArea
            private MyFile mf=new MyFile(this);//MyFile對象
            private MyClipboard cb=new MyClipboard();
            private MyFindDialog findDlg=new MyFindDialog(this,editor);
            public MyMemo(String title){                     //構造函數(shù)
            super(title);
            MyMenuBar mb=new MyMenuBar(this);
            //添加需要的菜單及菜單項
            mb.addMenus(new String[]{"文件","編輯","查找","幫助"});
            mb.addMenuItems(0,new String[]{"新建","打開","保存",null,"全選"});
            mb.addMenuItems(1,new String[]{"剪貼","復制","粘貼","清除",null,"全選"});
            mb.addMenuItems(2,new String[]{"查找",null,"查找替換"});
            mb.addMenuItems(3,new String[]{"我的記事本信息"});
            add(editor);  //為菜單項注冊動作時間監(jiān)聽器
            mb.addActionListener(this);
            addWindowListener(new WindowAdapter(){
            public void windowClosing(WindowEvent e){
            MyMemo.this.dispose();
            }
            });      //分號不能忘了
            }      //構造函數(shù)完
            public void actionPerformed(ActionEvent e){
            String selected=e.getActionCommand(); //獲取菜單項標題
            if(selected.equals("新建"))
            editor.setText("");
            else if(selected.equals("打開")){
            try{
            editor.setText(mf.getData());
            }catch(IOException ie){}
            }
            else if(selected.equals("保存")){
            try{
            mf.setData(editor.getText());
            }catch(IOException ie){}
            }
            else if(selected.equals("退出")){
            dispose();
            }
            else if(selected.equals("剪貼")){
            //將選中的字符串復制到剪貼板中并清除字符串
            cb.setData(editor.getSelectedText());
            editor.replaceRange("",editor.getSelectionStart(),editor.getSelectionEnd());
            }
            else if(selected.equals("復制")){
            cb.setData(editor.getSelectedText());
            }
            else if(selected.equals("粘貼")){
            String str=cb.getData();
            editor.replaceRange(str,editor.getSelectionStart(),editor.getSelectionEnd());
            //粘貼在光標位置
            }
            else if(selected.equals("清除")){
            editor.replaceRange("",editor.getSelectionStart(),editor.getSelectionEnd());
            }
            else if(selected.equals("全選")){
            editor.setSelectionStart(0);
            editor.setSelectionEnd(editor.getText().length());
            }
            else if(selected.equals("查找")){
            findDlg.showFind();
            }
            else if(selected.equals("查找替換")){
            findDlg.showReplace();
            }
            }
            public static void main(String[] args){
            MyMemo memo=new MyMemo("記事本");
            memo.setSize(650,450);
            memo.setVisible(true);
            }
            }
            用Java編寫簡易記事本源代碼
            importjava.awt.BorderLayout;importjava.awt.Container;importjava.awt.Font;importjava.awt.event.ActionEvent;importjava.awt.event.ActionListener;importjava.awt.event.InputEvent;importjava.awt.event.KeyAdapter;importjava.awt.event.KeyEvent;importjava.awt.event.MouseAdapter;importjava.awt.event.MouseEvent;importjava.awt.event.WindowAdapter;importjava.awt.event.WindowEvent;importjava.io.BufferedReader;importjava.io.BufferedWriter;importjava.io.File;importjava.io.FileReader;importjava.io.FileWriter;importjava.io.IOException;importjavax.swing.BorderFactory;importjavax.swing.JFileChooser;importjavax.swing.JFrame;importjavax.swing.JLabel;importjavax.swing.JMenu;importjavax.swing.JMenuBar;importjavax.swing.JMenuItem;importjavax.swing.JOptionPane;importjavax.swing.JPopupMenu;importjavax.swing.JScrollPane;importjavax.swing.JTextArea;importjavax.swing.KeyStroke;importjavax.swing.ScrollPaneConstants;importjavax.swing.SwingConstants;publicclassJNotePadUIextendsJFrame{privateJMenuItemmenuOpen;privateJMenuItemmenuSave;privateJMenuItemmenuSaveAs;privateJMenuItemmenuClose;privateJMenueditMenu;privateJMenuItemmenuCut;privateJMenuItemmenuCopy;privateJMenuItemmenuPaste;privateJMenuItemmenuAbout;privateJTextAreatextArea;privateJLabelstateBar;privateJFileChooserfileChooser;privateJPopupMenupopUpMenu;publicJNotePadUI(){super("新建文本文件");setUpUIComponent();setUpEventListener();setVisible(true);}privatevoidsetUpUIComponent(){setSize(640,480);//菜單欄JMenuBarmenuBar=newJMenuBar();//設置「文件」菜單JMenufileMenu=newJMenu("文件");menuOpen=newJMenuItem("打開");//快捷鍵設置menuOpen.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,InputEvent.CTRL_MASK));menuSave=newJMenuItem("保存");menuSave.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,InputEvent.CTRL_MASK));menuSaveAs=newJMenuItem("另存為");menuClose=newJMenuItem("關閉");menuClose.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Q,InputEvent.CTRL_MASK));fileMenu.add(menuOpen);fileMenu.addSeparator();//分隔線fileMenu.add(menuSave);fileMenu.add(menuSaveAs);fileMenu.addSeparator();//分隔線fileMenu.add(menuClose);//設置「編輯」菜單JMenueditMenu=newJMenu("編輯");menuCut=newJMenuItem("剪切");menuCut.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X,InputEvent.CTRL_MASK));menuCopy=newJMenuItem("復制");menuCopy.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,InputEvent.CTRL_MASK));menuPaste=newJMenuItem("粘貼");menuPaste.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V,InputEvent.CTRL_MASK));editMenu.add(menuCut);editMenu.add(menuCopy);editMenu.add(menuPaste);//設置「關于」菜單JMenuaboutMenu=newJMenu("關于");menuAbout=newJMenuItem("關于JNotePad");aboutMenu.add(menuAbout);menuBar.add(fileMenu);menuBar.add(editMenu);menuBar.add(aboutMenu);setJMenuBar(menuBar);//文字編輯區(qū)域textArea=newJTextArea();textArea.setFont(newFont("宋體",Font.PLAIN,16));textArea.setLineWrap(true);JScrollPanepanel=newJScrollPane(textArea,ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);ContainercontentPane=getContentPane();contentPane.add(panel,BorderLayout.CENTER);//狀態(tài)欄stateBar=newJLabel("未修改");stateBar.setHorizontalAlignment(SwingConstants.LEFT);stateBar.setBorder(BorderFactory.createEtchedBorder());contentPane.add(stateBar,BorderLayout.SOUTH);popUpMenu=editMenu.getPopupMenu();fileChooser=newJFileChooser();}privatevoidsetUpEventListener(){//按下窗口關閉鈕事件處理addWindowListener(newWindowAdapter(){publicvoidwindowClosing(WindowEvente){closeFile();}});//菜單-打開menuOpen.addActionListener(newActionListener(){publicvoidactionPerformed(ActionEvente){openFile();}});//菜單-保存menuSave.addActionListener(newActionListener(){publicvoidactionPerformed(ActionEvente){saveFile();}});//菜單-另存為menuSaveAs.addActionListener(newActionListener(){publicvoidactionPerformed(ActionEvente){saveFileAs();}});//菜單-關閉文件menuClose.addActionListener(newActionListener(){publicvoidactionPerformed(ActionEvente){closeFile();}});//菜單-剪切menuCut.addActionListener(newActionListener(){publicvoidactionPerformed(ActionEvente){cut();}});//菜單-復制menuCopy.addActionListener(newActionListener(){publicvoidactionPerformed(ActionEvente){copy();}});//菜單-粘貼menuPaste.addActionListener(newActionListener(){publicvoidactionPerformed(ActionEvente){paste();}});//菜單-關于menuAbout.addActionListener(newActionListener(){publicvoidactionPerformed(ActionEvente){//顯示對話框JOptionPane.showOptionDialog(null,"程序名稱:\nJNotePad\n"+"程序設計:\n\n"+"簡介:\n一個簡單的文字編輯器\n"+"可作為驗收Java的實現(xiàn)對象\n"+"歡迎網(wǎng)友下載研究交流\n\n"+"/","關于JNotePad",JOptionPane.DEFAULT_OPTION,JOptionPane.INFORMATION_MESSAGE,null,null,null);}});//編輯區(qū)鍵盤事件textArea.addKeyListener(newKeyAdapter(){publicvoidkeyTyped(KeyEvente){processTextArea();}});//編輯區(qū)鼠標事件textArea.addMouseListener(newMouseAdapter(){publicvoidmouseReleased(MouseEvente){if(e.getButton()==MouseEvent.BUTTON3)popUpMenu.show(editMenu,e.getX(),e.getY());}publicvoidmouseClicked(MouseEvente){if(e.getButton()==MouseEvent.BUTTON1)popUpMenu.setVisible(false);}});}privatevoidopenFile(){if(isCurrentFileSaved()){//文件是否為保存狀態(tài)open();//打開}else{//顯示對話框intoption=JOptionPane.showConfirmDialog(null,"文件已修改，是否保存？","保存文件？",JOptionPane.YES_NO_OPTION,JOptionPane.WARNING_MESSAGE,null);switch(option){//確認文件保存caseJOptionPane.YES_OPTION:saveFile();//保存文件break;//放棄文件保存caseJOptionPane.NO_OPTION:open();break;}}}privatebooleanisCurrentFileSaved(){if(stateBar.getText().equals("未修改")){returnfalse;}else{returntrue;}}privatevoidopen(){//fileChooser是JFileChooser的實例//顯示文件選取的對話框intoption=fileChooser.showDialog(null,null);//使用者按下確認鍵if(option==JFileChooser.APPROVE_OPTION){try{//開啟選取的文件BufferedReaderbuf=newBufferedReader(newFileReader(fileChooser.getSelectedFile()));//設定文件標題setTitle(fileChooser.getSelectedFile().toString());//清除前一次文件textArea.setText("");//設定狀態(tài)欄stateBar.setText("未修改");//取得系統(tǒng)相依的換行字符StringlineSeparator=System.getProperty("line.separator");//讀取文件并附加至文字編輯區(qū)Stringtext;while((text=buf.readLine())!=null){textArea.append(text);textArea.append(lineSeparator);}buf.close();}catch(IOExceptione){JOptionPane.showMessageDialog(null,e.toString(),"開啟文件失敗",JOptionPane.ERROR_MESSAGE);}}}privatevoidsaveFile(){//從標題欄取得文件名稱Filefile=newFile(getTitle());//若指定的文件不存在if(!file.exists()){//執(zhí)行另存為saveFileAs();}else{try{//開啟指定的文件BufferedWriterbuf=newBufferedWriter(newFileWriter(file));//將文字編輯區(qū)的文字寫入文件buf.write(textArea.getText());buf.close();//設定狀態(tài)欄為未修改stateBar.setText("未修改");}catch(IOExceptione){JOptionPane.showMessageDialog(null,e.toString(),"寫入文件失敗",JOptionPane.ERROR_MESSAGE);}}}privatevoidsaveFileAs(){//顯示文件對話框intoption=fileChooser.showSaveDialog(null);//如果確認選取文件if(option==JFileChooser.APPROVE_OPTION){//取得選擇的文件Filefile=fileChooser.getSelectedFile();//在標題欄上設定文件名稱setTitle(file.toString());try{//建立文件file.createNewFile();//進行文件保存saveFile();}catch(IOExceptione){JOptionPane.showMessageDialog(null,e.toString(),"無法建立新文件",JOptionPane.ERROR_MESSAGE);}}}privatevoidcloseFile(){//是否已保存文件if(isCurrentFileSaved()){//釋放窗口資源，而后關閉程序dispose();}else{intoption=JOptionPane.showConfirmDialog(null,"文件已修改，是否保存？","保存文件？",JOptionPane.YES_NO_OPTION,JOptionPane.WARNING_MESSAGE,null);switch(option){caseJOptionPane.YES_OPTION:saveFile();break;caseJOptionPane.NO_OPTION:dispose();}}}privatevoidcut(){textArea.cut();stateBar.setText("已修改");popUpMenu.setVisible(false);}privatevoidcopy(){textArea.copy();popUpMenu.setVisible(false);}privatevoidpaste(){textArea.paste();stateBar.setText("已修改");popUpMenu.setVisible(false);}privatevoidprocessTextArea(){stateBar.setText("已修改");}publicstaticvoidmain(String[]args){newJNotePadUI();}}
            給段最簡單的java代碼   讓我新手看一下
            最簡單的java代碼肯定就是這個了，如下：
            public class MyFirstApp
            {
            public static void main(String[] args)
            {
            System.out.print("Hello world");
            }
            }
            “hello world”就是應該是所有學java的新手看的第一個代碼了。如果是零基礎的新手朋友們可以來我們的java實驗班試聽，有免費的試聽課程幫助學習java必備基礎知識，有助教老師為零基礎的人提供個人學習方案，學習完成后有考評團進行專業(yè)測試，幫助測評學員是否適合繼續(xù)學習java，15天內(nèi)免費幫助來報名體驗實驗班的新手快速入門java，更好的學習java！
            一個簡單的Java程序代碼？
            package com.zpp;public class Charge {
            public static void main(String [] args) {
            if(args.length ==0) {
            System.out.println("parameter error!");
            System.out.println("java com.zpp.Charge [int]");
            return;
            }
            int min = Integer.parseInt(args[0]);
            double money = 0.0;
            if (min = 0) {
            money =0.0;
            System.out.println("not money");
            } else if (min = 60) {
            money = 2.0;
            } else {
            money = 2.0 + (min - 60) * 0.01;
            }
            System.out.println("please pay: " + money);
            }
            } 編譯：javac -d . Charge.java運行：java com.zpp.Charge 111
            求編寫一個超級簡單的Java的程序源代碼
            import java.awt.*;
            import java.awt.event.*;
            import javax.swing.*;
            class ConstructFrame extends JFrame
            {
            private static final long serialVersionUID = 1L;
            String value1="",result,value2="";
            int flag=0,fix=0,sum=1;
            Boolean  happy;
            JTextField text=new JTextField(30);
            int flagsum=0;
            Container c=getContentPane();
            JButton buttonx;
            ConstructFrame()
            {   super("計算器");
            c.setLayout(null);
            c.setBackground(Color.blue);
            this.setSize(400, 400);
            c.add(text);
            text.setHorizontalAlignment(JTextField.RIGHT);
            final JButton buttonx=new JButton("BackSpace");
            c.add(buttonx);
            buttonx.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            int count=0;
            String temp;
            if(flag==0)
            {
            count=value1.length();
            if(count!=1)
            temp=value1.substring(0, count-1);
            else
            temp="0";
            value1=temp;
            }
            else
            {
            count=value2.length();
            if(count!=1)
            temp=value2.substring(0, count-1);
            else
            temp="0";
            value2=temp;
            }
            text.setText(temp);
            }
            });
            final JButton buttony=new JButton("CE");
            c.add(buttony);
            buttony.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            value1="";
            value2="";
            flag=0;
            text.setText("0");
            }
            });
            final JButton button1=new JButton("1");
            c.add(button1);
            button1.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            String temp;
            if(flag==0)
            {
            value1=value1+1;
            temp=value1;
            }
            else
            {
            value2=value2+1;
            temp=value2;
            }
            text.setText(temp);
            }
            });
            final JButton button2=new JButton(" 2 ");
            c.add(button2);
            button2.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            String temp;
            if(flag==0)
            {
            value1=value1+2;
            temp=value1;
            }
            else
            {
            value2=value2+2;
            temp=value2;
            }
            text.setText(temp);
            }
            });
            final JButton button3=new JButton("3");
            c.add(button3);
            button3.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            String temp;
            if(flag==0)
            {
            value1=value1+3;
            temp=value1;
            }
            else
            {
            value2=value2+3;
            temp=value2;
            }
            text.setText(temp);
            }
            });
            final JButton button4=new JButton("4");
            c.add(button4);
            button4.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            String temp;
            if(flag==0)
            {
            value1=value1+4;
            temp=value1;
            }
            else
            {
            value2=value2+4;
            temp=value2;
            }
            text.setText(temp);
            }
            });
            final JButton button5=new JButton("5");
            c.add(button5);
            button5.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            String temp;
            if(flag==0)
            {
            value1=value1+5;
            temp=value1;
            }
            else
            {
            value2=value2+5;
            temp=value2;
            }
            text.setText(temp);
            }
            });
            final JButton button6=new JButton("6");
            c.add(button6);
            button6.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            String temp;
            if(flag==0)
            {
            value1=value1+6;
            temp=value1;
            }
            else
            {
            value2=value2+6;
            temp=value2;
            }
            text.setText(temp);
            }
            });
            final JButton button7=new JButton("7");
            c.add(button7);
            button7.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            String temp;
            if(flag==0)
            {
            value1=value1+7;
            temp=value1;
            }
            else
            {
            value2=value2+7;
            temp=value2;
            }
            text.setText(temp);
            }
            });
            final JButton button8=new JButton("8");
            c.add(button8);
            button8.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            String temp;
            if(flag==0)
            {
            value1=value1+8;
            temp=value1;
            }
            else
            {
            value2=value2+8;
            temp=value2;
            }
            text.setText(temp);
            }
            });
            final JButton button9=new JButton("9");
            c.add(button9);
            button9.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            String temp;
            if(flag==0)
            {
            value1=value1+9;
            temp=value1;
            }
            else
            {
            value2=value2+9;
            temp=value2;
            }
            text.setText(temp);
            }
            });
            final JButton button0=new JButton("0");
            c.add(button0);
            button0.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            String temp;
            if(flag==0)
            {
            value1=value1+0;
            temp=value1;
            }
            else
            {
            value2=value2+0;
            temp=value2;
            }
            text.setText(temp);
            }
            });
            final JButton buttonadd=new JButton(" + ");
            c.add(buttonadd);
            buttonadd.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            flag=1;
            fix=1;
            flagsum=0;
            }
            });
            final JButton buttonsubtract=new JButton(" - ");
            c.add(buttonsubtract);
            buttonsubtract.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            flag=1;
            fix=2;
            flagsum=0;
            }
            });
            final JButton buttoncheng=new JButton(" * ");
            c.add(buttoncheng);
            buttoncheng.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            flag=1;
            fix=3;
            flagsum=0;
            }
            });
            final JButton buttonchu=new JButton(" / ");
            c.add(buttonchu);
            buttonchu.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            flag=1;
            flagsum=0;
            fix=4;
            }
            });
            final JButton buttonequal=new JButton(" = ");
            c.add(buttonequal);
            buttonequal.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {
            double temp1,temp2;
            double temp=0;
            flagsum=0;
            temp1=Double.parseDouble(value1);
            temp2=Double.parseDouble(value2);
            flag=0;
            switch(fix)
            {
            case 1: temp=temp1+temp2;break;
            case 2: temp=temp1-temp2;break;
            case 3: temp=temp1*temp2;break;
            case 4: temp=temp1/temp2;break;
            }
            result=Double.valueOf(temp).toString();
            value1=result;
            value2="";
            flag=1;
            text.setText(result);
            }
            });
            final JButton buttonpoint=new JButton(".");
            c.add(buttonpoint);
            buttonpoint.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {   if(flagsum==0)
            {
            String temp;
            if(flag==0 )
            {
            value1=value1+".";
            temp=value1;
            }
            else
            {
            value2=value2+".";
            temp=value2;
            }
            flagsum=1;
            text.setText(temp);
            }
            }
            });
            JButton buttonz=new JButton("Start");
            c.add(buttonz);
            buttonz.addMouseListener(new MouseAdapter()
            {
            public void mousePressed(MouseEvent e)
            {   if(sum%2==1)
            {
            happy=true;
            text.setText("0.");
            flag=0;
            }
            else
            {
            happy=false;
            value1="";
            value2="";
            text.setText("");
            }
            text.setEnabled(happy);
            button1.setEnabled(happy);
            button2.setEnabled(happy);
            button3.setEnabled(happy);
            button4.setEnabled(happy);
            button5.setEnabled(happy);
            button6.setEnabled(happy);
            button7.setEnabled(happy);
            button8.setEnabled(happy);
            button9.setEnabled(happy);
            button0.setEnabled(happy);
            buttonx.setEnabled(happy);
            buttony.setEnabled(happy);
            buttonadd.setEnabled(happy);
            buttonsubtract.setEnabled(happy);
            buttonpoint.setEnabled(happy);
            buttonequal.setEnabled(happy);
            buttoncheng.setEnabled(happy);
            buttonchu.setEnabled(happy);
            sum++;
            }
            });
            button1.setEnabled(false);
            button2.setEnabled(false);
            button3.setEnabled(false);
            button4.setEnabled(false);
            button5.setEnabled(false);
            button6.setEnabled(false);
            button7.setEnabled(false);
            button8.setEnabled(false);
            button9.setEnabled(false);
            button0.setEnabled(false);
            buttonx.setEnabled(false);
            buttony.setEnabled(false);
            buttonadd.setEnabled(false);
            buttonsubtract.setEnabled(false);
            buttonpoint.setEnabled(false);
            buttonequal.setEnabled(false);
            buttoncheng.setEnabled(false);
            buttonchu.setEnabled(false);
            text.setEnabled(false);
            text.setBounds(20, 20, 200, 40);
            buttonx.setBounds(20, 60,100, 40);
            buttony.setBounds(140, 60,100, 40);
            buttonz.setBounds(260, 60,80, 40);
            button1.setBounds(20, 120,60, 40);
            button2.setBounds(100, 120,60, 40);
            button3.setBounds(180, 120,60, 40);
            buttonadd.setBounds(260, 120,60, 40);
            button4.setBounds(20, 180,60, 40);
            button5.setBounds(100, 180,60, 40);
            button6.setBounds(180, 180,60, 40);
            buttonsubtract.setBounds(260, 180,60, 40);
            button7.setBounds(20, 240,60, 40);
            button8.setBounds(100, 240,60, 40);
            button9.setBounds(180, 240,60, 40);
            buttoncheng.setBounds(260,240,60,40);
            button0.setBounds(20, 300,60, 40);
            buttonpoint.setBounds(100, 300, 60, 40);
            buttonequal.setBounds(180,300,60, 40);
            buttonchu.setBounds(260, 300,60, 40);
            setVisible(true);
            }
            class MYMouseEvent extends MouseAdapter
            {
            public void mousePressed(MouseEvent e)
            {
            value1=e.toString();
            text.setText(value1);
            }
            }
            }
            class Calutator
            {
            public static void main(String[] args)
            {
            new  ConstructFrame();
            }
            }
            你自己慢慢的看吧！
            如何運用Java Service Wrapper將java程序包裝成服務？提供最簡單的java程序源代碼
            1、使用工具--java service wrapper
            2、新建一個文件夾，在文件夾目錄下再分別創(chuàng)建lib,bin,conf,logs,classes文件夾
            3、將下載的wrapper的文件夾中的wrapper.jar,wrappertest.jar,wrapper.dll復制到新建的lib文件夾下，
            將InstallApp-NT.bat,PauseApp-NT.bat,ResumeApp-NT.bat,StartApp-NT.bat,StopAppNT.bat,UninstallApp-   NT.bat以及wrapper.exe復制到bin目錄下；
            將wrapper.conf復制到conf目錄下；
            將wrapper.log復制到logs目錄下；
            將要安裝成服務的java程序打成jar包（這里我的是TestServer.jar），連同其他需要的jar包一并放到           classes 目錄下。
            4、配置conf目錄下wrapper.conf文件：
            這里僅僅列出需要修改的地方
            4.1 wrapper.java.command=java
            指明jre，如果本機已配置了jre，那么此項不需更改；否則的話，需要將jre復制到wrapper路徑下
            （和bin在 同一級）
            同時修改wrapper.java.command=../jre/bin/java.exe
            4.2將程序運行需要的jar包都列出來wrapper.jar是必需的
            wrapper.java.classpath.1=../lib/wrapper.jar
            wrapper.java.classpath.2=../classes/TestServer.jar
            wrapper.java.classpath.2=../classes/classes12.jar
            4.3指定程序的主類
            wrapper.app.parameter.1=test.TestServer
            4.4控制臺運行時的名稱
            wrapper.console.title=TestServer
            4.5指定服務的名稱
            wrapper.ntservice.name=TestServer
            4.6windows服務的顯示名稱
            wrapper.ntservice.displayname=TestServer
            4.7服務描述
            wrapper.ntservice.description=TestServer
            4.8啟動模式，默認是自啟動AUTO_START or DEMAND_START
            wrapper.ntservice.starttype=AUTO_START
            5、運行InstallApp-NT.bat安裝服務，運行StartApp-NT.bat啟動服務
            出現(xiàn)異常錯誤可以查看logs目錄下的log文件
            6注意事項：
            6.1.    不要改變文件的相對路徑
            6.2.    安裝好服務后，不要移動文件和文件夾
            6.3.    也許您該定期清理logs/wrapper.log日志文件，防止日志文件過大
            6.4.    備份好數(shù)據(jù)庫和數(shù)據(jù)文件，定期查看
            可以參考
                        
            
                網(wǎng)站名稱：java最簡單程序源代碼,Java程序源碼
                
            
                當前地址：http://www.jbt999.com/article24/heegce.html
            
            
            
            
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