经典java程序源代码

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1、.WORD格式整理..经典Java程序源代码1.加法器（该java源文件的名称是Adder.java）importjava.awt.*;importjava.awt.event.*;importjavax.swing.*;publicclassAdderimplementsActionListener{JFrameAdderFrame;JTextFieldTOprand1;JTextFieldTOprand2;JLabelLAdd,LSum;JButtonBAdd,BClear;JPanelJP1,JP2;publicAdder()

2、{AdderFrame=newJFrame("AdderFrame");TOprand1=newJTextField("0.0");TOprand2=newJTextField("0.0");LAdd=newJLabel("+");LSum=newJLabel("=");BAdd=newJButton("Add");BClear=newJButton("Clear");..专业知识分享...WORD格式整理..JP1=newJPanel();JP2=newJPanel();BAdd.addActionListener(this);B

3、Clear.addActionListener(newActionListener(){publicvoidactionPerformed(ActionEventevent){TOprand1.setText("0.0");TOprand2.setText("0.0");LSum.setText("=");}});AdderFrame.add(JP1);JP1.add(TOprand1);JP1.add(LAdd);JP1.add(TOprand2);JP1.add(LSum);AdderFrame.add(JP2);JP2.add

4、(BAdd);JP2.add(BClear);AdderFrame.getContentPane().setLayout(newBorderLayout());AdderFrame.getContentPane().add(JP1,BorderLayout.NORTH);AdderFrame.getContentPane().add(JP2,BorderLayout.SOUTH);..专业知识分享...WORD格式整理..AdderFrame.addWindowListener(newWindowAdapter(){publicvo

5、idwindowClosing(WindowEventevent){System.exit(0);}});AdderFrame.pack();AdderFrame.setVisible(true);AdderFrame.setResizable(false);AdderFrame.setSize(250,100);}publicvoidactionPerformed(ActionEventevent){doublesum=(double)(Double.valueOf(TOprand1.getText()).doubleValue(

6、)+Double.valueOf(TOprand2.getText()).doubleValue());LSum.setText("="+sum);}publicstaticvoidmain(String[]args){Adderadder=newAdder();}}..专业知识分享...WORD格式整理..2.小型记事本（该java源文件由两个类构成，名称为Notepad.java）importjava.awt.*;importjava.awt.event.*;importjavax.swing.*;importjava.io.*

7、;classmynotepadextendsJFrame{Filefile=null;Colorcolor=Color.red;mynotepad(){initTextContent();initMenu();initAboutDialog();}voidinitTextContent(){getContentPane().add(newJScrollPane(content));}JTextPanecontent=newJTextPane();JFileChooseropenfile=newJFileChooser();JColo

8、rChooseropencolor=newJColorChooser();..专业知识分享...WORD格式整理..JDialogabout=newJDialog(this);JMenuBarmenu=newJMenuBar();//