2022年java计算器源代码.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,menuite

2、m1_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_dui

3、,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；private String str,resultstr ；JPopupMenu popupmenu ；Container con=this.getContentPane ；Font font=new Font 微软雅黑 ,Font.PLAIN,12；Color color=ne

4、w Color120,220,120 ；欢迎下载精品学习资源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setIconImagetk.c

5、reateImageD:sd.jpg；setDefaultCloseOperationJFrame.EXIT_ON_CLOSE；/-制作框架结构 -/-菜单栏 -menubar=new JMenuBar ；menubar.setPreferredSizenew Dimensionfrm.width,19；menu_check=new JMenu 查看 V；menu_check.setFontfont ；menu_check.setForegroundColor.black ；menuitem_standard=new JCheckBoxMenuItem标准型 ,true ；menuitem_s

6、tandard.setFontfont；menuitem_standard.setForegroundColor.black；menuitem_science=new JMenuItem科学型 ；menuitem_science.setFontfont ；欢迎下载精品学习资源menuitem_science.setForegroundColor.black ；menuitem_check=new JMenuItem查看分组 ；menuitem_check.setFontfont ；menuitem_check.setForegroundColor.black；menuitem_exit=new

7、 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 ；menubar.addme

8、nu_check ；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.getKeyStrokeKeyEvent.VK_C,InputEv

9、ent.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 ；欢迎下载精品学习资源menuitem_paste.addActionListenerthis；menu_edit.addme

10、nuitem_copy；menu_edit.addmenuitem_paste；menubar.addmenu_edit ；menu_help=new JMenu 帮忙 H；menu_help.setFontfont ；menu_help.setForegroundColor.black ；menuitem_chelp=new JMenuItem查看帮忙 ；menuitem_chelp.setFontfont；menuitem_chelp.setForegroundColor.black；menuitem_about=new JMenuItem关于运算器 ；menuitem_about.set

11、Fontfont；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；ta1.setEditablefalse ；/t

12、a1.setOpaquefalse ；ta1.setHorizontalAlignmentJTextField.RIGHT ；欢迎下载精品学习资源ta1.setPreferredSizenew Dimensionfrm.width-26,45；ta1.addMouseListenerthis ；p_all=new JPanel；p_all.setPreferredSizenew Dimensionfrm.width-6,250；/p_all.setBackgroundcolor ；p_all.setLayoutnew FlowLayoutFlowLayout.CENTER,0,3 ；p_txt

13、=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.setLayoutnew FlowLayoutFlow

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

15、r=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.addActionListenerthis

16、；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.setForegroundColor.blue ；b_m

17、jian.addActionListenerthis ；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；欢迎下载精品学习资源b_ce.setFontnew Font 微软雅黑 ,Font.PLAIN,11；b_ce.setMarginnew Insets0,0,0,0 ；b_ce.setForegrou

18、ndColor.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 ；b_jj.setForegroundColo

19、r.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 ；b_7=new JButton7 ；b_7.setFontnew Font 微软雅黑 ,Font.PLAIN,14 ；b_7.setMarginnew Insets0,0,0,0 ；b_7.setForegroundCol

20、or.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 ；欢迎下载精品学习资源b_8.addActionListenerthis ；b_9=new JButton9 ；b_9.setFontnew Font 微软雅黑 ,Fon

21、t.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.addActionListenerthis ；b_baifenhao=new

22、 JButton% ；b_baifenhao.setFontnew Font 微软雅黑 ,Font.PLAIN,11；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.setForegroundColor.blue ；b_4.setMnem

23、onicKeyEvent.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 ；欢迎下载精品学习资源b_6.setFontnew Font 微软雅黑 ,Font.PLAIN,14 ；b_6.setM

24、arginnew 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 ；b_cheng.addActionListenerthis ；b_daoshu=new JButton1/x ；

25、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.setMnemonicKeyEvent.VK_1 ；b_

26、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.setMarginnew Insets0,0,0,0 ；欢迎下载精品学

27、习资源b_3.setForegroundColor.blue ；b_3.setMnemonicKeyEvent.VK_3 ；b_3.addActionListenerthis ；b_jian=new JButton- ；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.setFontnew Font 微软雅黑 ,Font.PL

28、AIN,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 ,Font.BOLD,14；b_dian.setMar

29、ginnew 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 Insets0,0,0,0 ；b_jia.setPreferredSi

30、zenew Dimension35,27 ；b_jia.setForegroundColor.red ；欢迎下载精品学习资源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 ；b_dengyu.addActionListener

31、this ；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 ；p1.addb_4 ；p1.addb_5 ；p1.addb_6 ；p1.addb_cheng ；p1.addb_daoshu ；欢迎下载精品学习资源p_button1.addp1 ；p_button2=new

32、 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.setPreferredSizenew Dimension39,62 ；p3.setLa

33、youtnew FlowLayoutFlowLayout.LEFT,4,0 ；p_button2.addp2 ；p_button2.addp3 ；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.addp4 ；p2.addp5 ；欢迎下载精品学习资源p4.addb

34、_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menuitem1_copy=new JMenuItem复制；menuitem1_copy.setAcceleratorKeyStroke.getKeyStrokeKeyEvent.VK_C,InputEvent.CTRL_MASK ；menuitem1_copy.addActionLi

35、stenerthis；/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.addpopupmenu ；con.validate ；validate ；欢迎下

36、载精品学习资源/-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 创作者：钟作明 , 仿 win7 运算器 ,JOptionPane.INFORMATION_MESSAGE；ife.getSource=menuitem1_copy ta1.selectAll ；ta1.copy；else ife.getSource=menuitem1_paste ta1.setEditablet

37、rue ；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；else ife.getSource=b_ce ta1.setEdit

38、abletrue ；ta1.setText0 ；ta1.setEditablefalse ；else ife.getSource=b_cta1.setEditabletrue ；ta1.setText0 ；ta1.setEditablefalse ；else ife.getSource=b_tuiString str=ta1.getText ；StringBuffer s=new StringBufferstr ；int L=s.length ；tryifL.=1s=s.deleteCharAtL-1；elses=new StringBuffer0 ；catchException e1欢迎下载

39、精品学习资源ta1.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_5addString5；else ife.getSource=b_6addString6；else ife.getSource=b_7addString7；欢迎下载精品学习资源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.；ifString.valueOfs1.indexOf.=-1s1.appenddian ；ta1.setTextString.valueOfs1 ；欢迎下载