2022年java计算器源代码2.docx

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1、精品学习资源java 运算器源代码 仿 win7import java.awt.* ；import javax.swing.* ；import java.awt.event.*；class Cal extends JFrame implements ActionListener,MouseListenerJMenuBar menubar ；JMenu menu_check,menu_edit,menu_help；JMenuItem menuitem_science,menuitem_check,menuitem_exit,menuitem_copy, menuitem_paste,menuit

2、em1_copy,menuitem1_paste,menuitem_chelp,menuitem_about；JCheckBoxMenuItem menuitem_standard ；JTextField ta1；int x,result2 ；double op1,op2,opall ；private boolean end=false,flag=false,add=false,sub=false,cheng=false,chu=false,flagop2=false ；JButton b_mc,b_mr,b_ms,b_mjia,b_mjian,b_tui,b_ce,b_c,b_jj, b_d

3、ui,b_7,b_8,b_9,b_chu,b_baifenhao,b_4,b_5,b_6,b_cheng, b_daoshu,b_1,b_2,b_3,b_jian,b_0,b_dian,b_jia,b_dengyu；JPanel p_all,p_button1,p_button2,p_txt,p1,p2,p3,p4,p5；欢迎下载精品学习资源private String str,resultstr ；JPopupMenu popupmenu ； Container con=this.getContentPane ；Font font=new Font 微软雅黑 ,Font.PLAIN,12；C

4、olor color=new Color120,220,120 ；CalString ssupers；setSize220,315；setResizablefalse；setVisibletrue ；Dimension scr=Toolkit.getDefaultToolkit.getScreenSize ；Dimension frm=this.getSize ；setLocationscr.width-frm.width/2,scr.height-frm.height/ 2；Toolkit tk=Toolkit.getDefaultToolkit ；/ 程序默认图标设置setIconImag

5、etk.createImageD:sd.jpg；setDefaultCloseOperationJFrame.EXIT_ON_CLOSE；/-制作框架结构 -/-菜单栏 -menubar=new JMenuBar ；menubar.setPreferredSizenew Dimensionfrm.width,19；欢迎下载精品学习资源menu_check=new JMenu 查看 V ；menu_check.setFontfont ；menu_check.setForegroundColor.black ；menuitem_standard=new JCheckBoxMenuItem标准型 ,

6、true ；menuitem_standard.setFontfont；menuitem_standard.setForegroundColor.black；menuitem_science=new JMenuItem科学型 ；menuitem_science.setFontfont ；menuitem_science.setForegroundColor.black ；menuitem_check=new JMenuItem查看分组 ；menuitem_check.setFontfont ；menuitem_check.setForegroundColor.black ；menuitem_e

7、xit=new JMenuItem退出 ；menuitem_exit.setFontfont；menuitem_exit.setForegroundColor.black ；menuitem_exit.addActionListenerthis；menu_check.addmenuitem_standard ；menu_check.addmenuitem_science ；menu_check.addSeparator ；menu_check.addmenuitem_check ；menu_check.addSeparator ；menu_check.addmenuitem_exit ；men

8、ubar.addmenu_check ；欢迎下载精品学习资源menu_edit=new JMenu 编辑 E；menu_edit.setFontfont ；menu_edit.setForegroundColor.black ；menu_edit.setMnemonicKeyEvent.VK_E ；menuitem_copy=new JMenuItem复制 C ；menuitem_copy.setFontfont ；menuitem_copy.setForegroundColor.black ；menuitem_copy.setAcceleratorKeyStroke.getKeyStroke

9、KeyEvent.VK_C,InputEvent.CTRL_MASK；menuitem_copy.addActionListenerthis；menuitem_paste=new JMenuItem粘贴 P ；menuitem_paste.setFontfont；menuitem_paste.setForegroundColor.black ；menuitem_paste.setAcceleratorKeyStroke.getKeyStrokeKeyEvent.VK_V,InputEvent.CTRL_MASK； menuitem_paste.addActionListenerthis；men

10、u_edit.addmenuitem_copy；menu_edit.addmenuitem_paste；menubar.addmenu_edit ；menu_help=new JMenu 帮忙 H；menu_help.setFontfont ；menu_help.setForegroundColor.black ；欢迎下载精品学习资源menuitem_chelp=new JMenuItem查看帮忙 ；menuitem_chelp.setFontfont；menuitem_chelp.setForegroundColor.black ；menuitem_about=new JMenuItem关于

11、运算器 ；menuitem_about.setFontfont；menuitem_about.setForegroundColor.black；menuitem_about.addActionListenerthis；menu_help.addmenuitem_chelp；menu_help.addSeparator ；menu_help.addmenuitem_about；menubar.addmenu_help ；setJMenuBarmenubar ；/-文本框 -ta1=new JTextField0 ；ta1.setFontnew Font 微软雅黑 ,Font.PLAIN,13；t

12、a1.setEditablefalse ；/ta1.setOpaquefalse ；ta1.setHorizontalAlignmentJTextField.RIGHT ；ta1.setPreferredSizenew Dimensionfrm.width-26,45；ta1.addMouseListenerthis ；欢迎下载精品学习资源p_all=new JPanel；p_all.setPreferredSizenew Dimensionfrm.width-6,250；/p_all.setBackgroundcolor ；p_all.setLayoutnew FlowLayoutFlowL

13、ayout.CENTER,0,3；p_txt=new JPanel ；p_txt.setPreferredSizenew Dimensionfrm.width-6,53；p_txt.setLayoutnew FlowLayoutFlowLayout.CENTER,0,7 ；p_txt.addta1 ；p_all.addp_txt ；con.addp_all,BorderLayout.CENTER；/-按钮区 -p_button1=new JPanel ；p_button1.setPreferredSizenew Dimensionfrm.width-25,131；p_button1.setLa

14、youtnew FlowLayoutFlowLayout.LEFT,0,3 ；p_all.addp_button1 ；p1=new JPanel；p1.setPreferredSizenew Dimensionfrm.width-25,127；p1.setLayoutnew GridLayout4,5,5,6 ；欢迎下载精品学习资源b_mc=new JButtonMC ；b_mc.setFontnew Font 微软雅黑 ,Font.PLAIN,11；b_mc.setMarginnew Insets0,0,0,0 ；b_mc.setForegroundColor.blue ；b_mc.addA

15、ctionListenerthis ；b_mr=new JButtonMR ；b_mr.setFontnew Font 微软雅黑 ,Font.PLAIN,11；b_mr.setMarginnew Insets0,0,0,0 ；b_mr.setForegroundColor.blue ；b_mr.addActionListenerthis ；b_ms=new JButtonMS ；b_ms.setFontnew Font 微软雅黑 ,Font.PLAIN,11；b_ms.setMarginnew Insets0,0,0,0 ；b_ms.setForegroundColor.blue ；b_ms.

16、addActionListenerthis ；b_mjia=new JButtonM+ ；b_mjia.setFontnew Font 微软雅黑 ,Font.PLAIN,11；b_mjia.setMarginnew Insets0,0,0,0 ；b_mjia.setForegroundColor.blue ；b_mjia.addActionListenerthis ；b_mjian=new JButtonM- ；b_mjian.setFontnew Font 微软雅黑 ,Font.PLAIN,11；b_mjian.setMarginnew Insets0,0,0,0；b_mjian.setFo

17、regroundColor.blue ；b_mjian.addActionListenerthis ；欢迎下载精品学习资源b_tui=new JButton ；b_tui.setFontnew Font 微软雅黑 ,Font.BOLD,14；b_tui.setMarginnew Insets0,0,0,0 ；b_tui.addActionListenerthis ；b_tui.setForegroundColor.red ；b_ce=new JButtonCE ；b_ce.setFontnew Font 微软雅黑 ,Font.PLAIN,11；b_ce.setMarginnew Insets0

18、,0,0,0 ；b_ce.setForegroundColor.red ；b_ce.addActionListenerthis ；b_c=new JButtonC ；b_c.setFontnew Font 微软雅黑 ,Font.PLAIN,11；b_c.setMarginnew Insets0,0,0,0 ；b_c.setForegroundColor.red ；b_c.addActionListenerthis ；b_jj=new JButton； b_jj.setFontnew Font 微软雅黑 ,Font.PLAIN,14；b_jj.setMarginnew Insets0,0,0,0

19、 ；b_jj.setForegroundColor.red ；b_jj.addActionListenerthis ；b_dui=new JButton ；b_dui.setFontnew Font 微软雅黑 ,Font.PLAIN,11；b_dui.setMarginnew Insets0,0,0,0 ；b_dui.setForegroundColor.red ；b_dui.addActionListenerthis ；欢迎下载精品学习资源b_7=new JButton7 ；b_7.setFontnew Font 微软雅黑 ,Font.PLAIN,14；b_7.setMarginnew In

20、sets0,0,0,0 ；b_7.setForegroundColor.blue ；b_7.setMnemonicKeyEvent.VK_7 ；b_7.addActionListenerthis ；b_8=new JButton8 ；b_8.setFontnew Font 微软雅黑 ,Font.PLAIN,14；b_8.setMarginnew Insets0,0,0,0 ；b_8.setForegroundColor.blue ；b_8.setMnemonicKeyEvent.VK_8 ；b_8.addActionListenerthis ；b_9=new JButton9 ；b_9.set

21、Fontnew Font 微软雅黑 ,Font.PLAIN,14；b_9.setMarginnew Insets0,0,0,0 ；b_9.setForegroundColor.blue ；b_9.setMnemonicKeyEvent.VK_9 ；b_9.addActionListenerthis ；b_chu=new JButton/ ；b_chu.setFontnew Font 微软雅黑 ,Font.PLAIN,14；b_chu.setMarginnew Insets0,0,0,0 ；b_chu.setForegroundColor.red ；b_chu.addActionListener

22、this ；b_baifenhao=new JButton% ；b_baifenhao.setFontnew Font 微软雅黑 ,Font.PLAIN,11；欢迎下载精品学习资源b_baifenhao.setMarginnew Insets0,0,0,0；b_baifenhao.setForegroundColor.blue ；b_baifenhao.addActionListenerthis ；b_4=new JButton4 ；b_4.setFontnew Font 微软雅黑 ,Font.PLAIN,14；b_4.setMarginnew Insets0,0,0,0 ；b_4.setFo

23、regroundColor.blue ；b_4.setMnemonicKeyEvent.VK_4 ；b_4.addActionListenerthis ；b_5=new JButton5 ；b_5.setFontnew Font 微软雅黑 ,Font.PLAIN,14；b_5.setMarginnew Insets0,0,0,0 ；b_5.setForegroundColor.blue ；b_5.setMnemonicKeyEvent.VK_5 ；b_5.addActionListenerthis ；b_6=new JButton6 ；b_6.setFontnew Font 微软雅黑 ,Fon

24、t.PLAIN,14；b_6.setMarginnew Insets0,0,0,0 ；b_6.setForegroundColor.blue ；b_6.setMnemonicKeyEvent.VK_6 ；b_6.addActionListenerthis ；b_cheng=new JButton* ；b_cheng.setFontnew Font 微软雅黑 ,Font.PLAIN,14；b_cheng.setMarginnew Insets0,0,0,0 ；b_cheng.setForegroundColor.red ；欢迎下载精品学习资源b_cheng.addActionListenerth

25、is ；b_daoshu=new JButton1 /x ；b_daoshu.setFontnew Font 微软雅黑 ,Font.PLAIN,11；b_daoshu.setMarginnew Insets0,0,0,0 ；b_daoshu.setForegroundColor.blue ；b_daoshu.addActionListenerthis ；b_1=new JButton1 ；b_1.setFontnew Font 微软雅黑 ,Font.PLAIN,14；b_1.setMarginnew Insets0,0,0,0 ；b_1.setForegroundColor.blue ；b_1

26、.setMnemonicKeyEvent.VK_1 ；b_1.addActionListenerthis ；b_2=new JButton2 ；b_2.setFontnew Font 微软雅黑 ,Font.PLAIN,14；b_2.setMarginnew Insets0,0,0,0 ；b_2.setForegroundColor.blue ；b_2.setMnemonicKeyEvent.VK_2 ；b_2.addActionListenerthis ；b_3=new JButton3 ；b_3.setFontnew Font 微软雅黑 ,Font.PLAIN,14；b_3.setMargi

27、nnew Insets0,0,0,0 ；b_3.setForegroundColor.blue ；b_3.setMnemonicKeyEvent.VK_3 ；b_3.addActionListenerthis ；b_jian=new JButton- ；欢迎下载精品学习资源b_jian.setFontnew Font 微软雅黑 ,Font.PLAIN,14；b_jian.setMarginnew Insets0,0,0,0 ；b_jian.setForegroundColor.red ；b_jian.addActionListenerthis ；b_0=new JButton0 ；b_0.se

28、tFontnew Font 微软雅黑 ,Font.PLAIN,14；b_0.setMarginnew Insets0,0,0,0 ；b_0.setPreferredSizenew Dimension75,27 ；b_0.setForegroundColor.blue ；b_0.setMnemonicKeyEvent.VK_0 ；b_0.addActionListenerthis ；JLabel L1=new JLabel；L1.setPreferredSizenew Dimension5,3 ；b_dian=new JButton. ；b_dian.setFontnew Font 微软雅黑 ,

29、Font.BOLD,14；b_dian.setMarginnew Insets0,0,0,0 ；b_dian.setPreferredSizenew Dimension35,27 ；b_dian.setForegroundColor.blue ；b_dian.addActionListenerthis ；JLabel L2=new JLabel；L2.setPreferredSizenew Dimension5,3 ；b_jia=new JButton+ ；b_jia.setFontnew Font 微软雅黑 ,Font.BOLD,14；b_jia.setMarginnew Insets0,0

30、,0,0 ；b_jia.setPreferredSizenew Dimension35,27 ；欢迎下载精品学习资源b_jia.setForegroundColor.red ；b_jia.addActionListenerthis ；b_dengyu=new JButton= ；b_dengyu.setFontnew Font 微软雅黑 ,Font.BOLD,22；b_dengyu.setMarginnew Insets0,0,0,0 ；b_dengyu.setPreferredSizenew Dimension35,60 ；b_dengyu.setForegroundColor.blue ；

31、b_dengyu.addActionListenerthis ；p1.addb_mc ；p1.addb_mr ；p1.addb_ms ；p1.addb_mjia ；p1.addb_mjian ；p1.addb_tui ；p1.addb_ce ；p1.addb_c ；p1.addb_jj ；p1.addb_dui ；p1.addb_7 ；p1.addb_8 ；p1.addb_9 ；p1.addb_chu ；p1.addb_baifenhao ；欢迎下载精品学习资源p1.addb_4 ；p1.addb_5 ；p1.addb_6 ；p1.addb_cheng ；p1.addb_daoshu ；p_b

32、utton1.addp1 ；p_button2=new JPanel ；p_button2.setPreferredSizenew Dimensionfrm.width-24,65；p_button2.setLayoutnew FlowLayoutFlowLayout.LEFT,0,0 ；p_all.addp_button2 ；p2=new JPanel；p2.setPreferredSizenew Dimension156,65 ；p2.setLayoutnew FlowLayoutFlowLayout.LEFT,0,1；p3=new JPanel；p3.setPreferredSizene

33、w Dimension39,62 ；p3.setLayoutnew FlowLayoutFlowLayout.LEFT,4,0；p_button2.addp2 ；p_button2.addp3 ；欢迎下载精品学习资源p4=new JPanel；p4.setPreferredSizenew Dimension156,27 ；p4.setLayoutnew GridLayout1,4,5,5 ；p5=new JPanel；p5.setPreferredSizenew Dimension156,39 ；p5.setLayoutnew FlowLayoutFlowLayout.LEFT,0,5；p2.

34、addp4 ；p2.addp5 ；p4.addb_1 ；p4.addb_2 ；p4.addb_3 ；p4.addb_jian ；p5.addb_0 ；p5.addL1；p5.addb_dian ；p5.addL2；p5.addb_jia ；p3.addb_dengyu ；/-快捷菜单对象 -popupmenu=new JPopupMenu ； / 快捷菜单对象欢迎下载精品学习资源menuitem1_copy=new JMenuItem复制 ；menuitem1_copy.setAcceleratorKeyStroke.getKeyStrokeKeyEvent.VK_C,InputEvent.C

35、TRL_MASK；menuitem1_copy.addActionListenerthis ；/ 监视鼠标右击菜单”复制“popupmenu.addmenuitem1_copy；menuitem1_paste=new JMenuItem粘贴 ；menuitem1_paste.setAcceleratorKeyStroke.getKeyStrokeKeyEvent.VK_V,InputEvent.CTRL_MASK；menuitem1_paste.addActionListenerthis；/ 监视鼠标右击菜单”粘贴“popupmenu.addmenuitem1_paste；ta1.addpop

36、upmenu ；con.validate ；validate ；/-功能区 -public void actionPerformedActionEvent e ife.getSource=menuitem_aboutJOptionPane.showMessageDialognull, 这是一个仿照win7的运算器！欢迎改进，n创作欢迎下载精品学习资源者：钟作明 , 仿 win7 运算器 ,JOptionPane.INFORMATION_MESSAGE；ife.getSource=menuitem1_copy ta1.selectAll ；ta1.copy ；else ife.getSource

37、=menuitem1_paste ta1.setEditabletrue ；ta1.setText ；ta1.paste；ta1.setEditablefalse ；else ife.getSource=menuitem_copy ta1.selectAll ；ta1.copy ；else ife.getSource=menuitem_paste ta1.setEditabletrue ；ta1.setText ；ta1.paste；ta1.setEditablefalse ；欢迎下载精品学习资源else ife.getSource=menuitem_exit System.exit0；els

38、e ife.getSource=b_ce ta1.setEditabletrue ；ta1.setText0 ；ta1.setEditablefalse ；else ife.getSource=b_c ta1.setEditabletrue ；ta1.setText0 ；ta1.setEditablefalse ；else ife.getSource=b_tuiString str=ta1.getText ；StringBuffer s=new StringBufferstr ；int L=s.length ；try ifL.=1s=s.deleteCharAtL-1；elses=new St

39、ringBuffer0 ；欢迎下载精品学习资源catchException e1ta1.setTextString.valueOfs；/-数字键 -ife.getSource=b_1addString1 ；else ife.getSource=b_2addString2 ；else ife.getSource=b_3addString3 ；else ife.getSource=b_4addString4 ；else ife.getSource=b_5欢迎下载精品学习资源addString5 ；else ife.getSource=b_6addString6 ；else ife.getSourc

40、e=b_7addString7 ；else ife.getSource=b_8addString8 ；else ife.getSource=b_9addString9 ；else ife.getSource=b_0addString0 ；else ife.getSource=b_dianStringBuffer s1=new StringBufferta1.getText ；StringBuffer dian=new StringBuffer.；欢迎下载精品学习资源ifString.valueOfs1.indexOf.=-1 s1.appenddian ；ta1.setTextString.valueOfs1；else ife.getSource=b_jjString txt=ta1.getText ；int