保存计算过程的计算器

import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.util.LinkedList; import java.io.*; import javax.swing.border.*; public class CalculatorWindow extends JFrame implements ActionListener{ NumberButton numberButton[]; OperationButton operationButton[]; JButton dot,p_n,back,equality,clear,sin; JTextField showResult,showComputerProcess; JTextArea saveComputerProcess; JButton saveButton,copyButton,clearButton; LinkedList<String> list; HandleDigit handleDigit; HandleOperation handleOperation; HandleBack handleBack; HandleClear handleClear; HandleEquality handleEquality; HandleDot handleDot; HandlePorN handlePorN; HandleSin handleSin; public CalculatorWindow() { setTitle("计算器"); JPanel panelLeft,panelRight; list=new LinkedList<String>(); showResult=new JTextField(10); showResult.setHorizontalAlignment(JTextField.RIGHT); showResult.setForeground(Color.blue); showResult.setFont(new Font("TimesRoman",Font.BOLD,16)); showResult.setBorder(new SoftBevelBorder(BevelBorder.LOWERED));///////////// showResult.setEditable(false); showResult.setBackground(Color.white); showComputerProcess=new JTextField(); showComputerProcess.setHorizontalAlignment(JTextField.CENTER); showComputerProcess.setFont(new Font("Arial",Font.BOLD,16)); showComputerProcess.setBackground(Color.cyan); showComputerProcess.setEditable(false); saveComputerProcess=new JTextArea(); saveComputerProcess.setEditable(false); saveComputerProcess.setFont(new Font("宋体",Font.PLAIN,16)); numberButton=new NumberButton[10]; handleDigit=new HandleDigit(list,showResult,showComputerProcess); for(int i=0;i<=9;i++) { numberButton[i]=new NumberButton(i); numberButton[i].setFont(new Font("Arial",Font.BOLD,20)); numberButton[i].addActionListener(handleDigit); } operationButton=new OperationButton[4]; handleOperation=new HandleOperation(list,showResult,showComputerProcess,saveComputerProcess); String sign[]={"+","-","*","/"}; for(int i=0;i<4;i++) { operationButton[i]=new OperationButton(sign[i]); operationButton[i].setFont(new Font("Arial",Font.BOLD,20)); operationButton[i].addActionListener(handleOperation); } dot=new JButton("."); handleDot=new HandleDot(list,showResult,showComputerProcess); dot.addActionListener(handleDot); p_n=new JButton("+/-"); handlePorN=new HandlePorN(list,showResult,showComputerProcess); p_n.addActionListener(handlePorN); equality=new JButton("="); handleEquality=new HandleEquality(list,showResult,showComputerProcess,saveComputerProcess); equality.addActionListener(handleEquality); sin=new JButton("sin"); handleSin=new HandleSin(list,showResult,showComputerProcess,saveComputerProcess); sin.addActionListener(handleSin); back=new JButton("←"); handleBack=new HandleBack(list,showResult,showComputerProcess); back.addActionListener(handleBack); clear=new JButton("C"); handleClear=new HandleClear(list,showResult,showComputerProcess); clear.addActionListener(handleClear); clear.setForeground(Color.red); back.setForeground(Color.red); equality.setForeground(Color.red); sin.setForeground(Color.blue); p_n.setForeground(Color.blue); dot.setForeground(Color.blue); panelLeft=new JPanel(); panelRight=new JPanel(); panelLeft.setLayout(new BorderLayout()); JPanel centerInLeft=new JPanel(); panelLeft.add(showResult,BorderLayout.NORTH); panelLeft.add(centerInLeft,BorderLayout.CENTER); centerInLeft.setLayout(new GridLayout(4,5)); centerInLeft.add(numberButton[1]); centerInLeft.add(numberButton[2]); centerInLeft.add(numberButton[3]); centerInLeft.add(operationButton[0]); centerInLeft.add(clear); centerInLeft.add(numberButton[4]); centerInLeft.add(numberButton[5]); centerInLeft.add(numberButton[6]); centerInLeft.add(operationButton[1]); centerInLeft.add(back); centerInLeft.add(numberButton[7]); centerInLeft.add(numberButton[8]); centerInLeft.add(numberButton[9]); centerInLeft.add(operationButton[2]); centerInLeft.add(sin); centerInLeft.add(numberButton[0]); centerInLeft.add(p_n); centerInLeft.add(dot); centerInLeft.add(operationButton[3]); centerInLeft.add(equality); panelRight.setLayout(new BorderLayout()); panelRight.add(showComputerProcess,BorderLayout.NORTH); saveButton=new JButton("保存"); copyButton=new JButton("复制"); clearButton=new JButton("清除"); saveButton.setToolTipText("保存计算过程到文件"); copyButton.setToolTipText("保存复制过程到文件"); clearButton.setToolTipText("清除计算过程"); saveButton.addActionListener(this); copyButton.addActionListener(this); clearButton.addActionListener(this); panelRight.add(new JScrollPane(saveComputerProcess),BorderLayout.CENTER); JPanel southInPanelRight=new JPanel(); southInPanelRight.add(saveButton); southInPanelRight.add(copyButton); southInPanelRight.add(clearButton); panelRight.add(southInPanelRight,BorderLayout.SOUTH); JSplitPane split=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,panelLeft,panelRight); add(split,BorderLayout.CENTER); ////////////////////////////////////////////////// setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setVisible(true); setBounds(100,50,528,258); validate(); } public void actionPerformed(ActionEvent e)////////////////////////////// { if(e.getSource()==copyButton) saveComputerProcess.copy(); if(e.getSource()==clearButton) saveComputerProcess.setText(null); if(e.getSource()==saveButton) { JFileChooser chooser=new JFileChooser(); int state=chooser.showSaveDialog(null); File file=chooser.getSelectedFile(); if(file!=null&&state==JFileChooser.APPROVE_OPTION) { try{//////////////////////////////////// String content=saveComputerProcess.getText(); StringReader read=new StringReader(content); BufferedReader in=new BufferedReader(read); FileWriter outOne=new FileWriter(file); BufferedWriter out=new BufferedWriter(outOne); String str=null; while((str=in.readLine())!=null) { out.write(str); out.newLine(); } } catch(IOException e1){}//////////////////// } } } public static void main(String[] args) { new CalculatorWindow(); } }