From 2fe829ebd40773ba2640ead21209663b106635b4 Mon Sep 17 00:00:00 2001 From: 86131 <86131@Xiuyi> Date: Fri, 4 Jun 2021 00:27:05 +0800 Subject: [PATCH 1/5] =?UTF-8?q?=E5=BC=80=E5=A7=8B=E8=87=B3=E4=BB=8A?= =?UTF-8?q?=EF=BC=8C=E5=AE=8C=E6=88=90=E4=BA=86=E5=9F=BA=E6=9C=AC=E6=A1=86?= =?UTF-8?q?=E6=9E=B6=E7=9A=84=E6=9E=84=E5=BB=BA=EF=BC=8C=E5=B9=B6=E5=AE=9E?= =?UTF-8?q?=E7=8E=B0=E4=BA=86=E6=96=87=E4=BB=B6=E3=80=81=E7=BC=96=E8=BE=91?= =?UTF-8?q?=E3=80=81=E6=A0=BC=E5=BC=8F=E4=B8=89=E4=B8=AA=E8=8F=9C=E5=8D=95?= =?UTF-8?q?=E4=B8=AD=E7=9A=84=E5=8A=9F=E8=83=BD?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 20级信管一班吴小玉 --- ...3\346\234\254\345\233\276\346\240\207.jpg" | Bin 0 -> 19030 bytes src/java2020spring/MainFrame.java | 305 ++++++++++++++++++ 2 files changed, 305 insertions(+) create mode 100644 "src/images/\350\256\260\344\272\213\346\234\254\345\233\276\346\240\207.jpg" create mode 100644 src/java2020spring/MainFrame.java diff --git "a/src/images/\350\256\260\344\272\213\346\234\254\345\233\276\346\240\207.jpg" "b/src/images/\350\256\260\344\272\213\346\234\254\345\233\276\346\240\207.jpg" new file mode 100644 index 0000000000000000000000000000000000000000..d848aa46774cc893ec18be0cfe65c672e66618d1 GIT binary patch literal 19030 zcmeHu2UJwcvgjVN0wR)wfMf<4Bn${hkSI9}Lk>!2$XQ7u3JM5FmLxgM3^Pd1C?YvX zjuKRIQj!t`{&+l|d+%TO-v96Wcl~$%`>$uM-8FmfuBxuCuCA`?eKv764_s7JR#gT- zAP{g1_XEzR0R@1Bh=`bokc60+_}n>?^JLWIWTd2I440@Vs4p|JvRr0lW@h7r@UXF8 zusy#<(YtO9uWxXT}fgoqeKK!}HrdunhI0O5o1@yW@)i&_{gB8{v^Xs2H?p?&vR(4JA%j^%5bqSRx64&-Jp8F48997iurx}~U zIChp|E7!pp=opdSX{0N3G=%kQ$dOh9oT8NL3rDao>dWml zVK-vpRhjGFFTx6S0N}!6s-3~qSRyqw^^i7PYOt)m{UfSLj#wiff|V;tGqF>@XBS_M z>1!L1KT*^$?}bUF?2(*nC4A36(sj9AQSlIutJTF~t2~>Nna;g*KfiXmg<{#ySmzQE zX|3VWkeSQ;AU3}2hB@uT)5jWeOicRRTj~k*`n^t+r50YgJ*v$XkdGhNfp#}`V$2g3& z*-a+-4A(KyhzcgHp~Fc=+BEL-!Ov+Y1hlcExKWX}w&B|eu#?v$Uk6L#2PzT#_GWg) zaYL_I8G0i3GVQ^26N$tCuqaySte^|;j3{yd@^(nQII_z!@2!1m$Cl9~*5|)tzEuk@ z%13ra)Vrv^vTwCD?-6_Vcnvnx!Q{~wPA(7Z$^ByMKT=;-SL-dT+L+upnwS=VYB*7s z_Ef5;ksxh&1(vniZz%sHkrK;oH2k7QGHYrP{) zyx`L%2^fo#+Z7!~cWMBjCbll9K;zIFGo#Ats&uUy)c4FXYWbpkWk*VkZ^n~(X)3V$ z59;2+d+|?s26+Sc#69>)b^J9nVv~%5l@2|$ZDMnItXrbMvj=hj=xCT5RmeFL0NbZ- zrlX*reTKL3;95}_l?uX5p1Eayd)sA29ytDu22ltgR`yS+{dg#(;ofom@4f}f4&XG2 zke>B~B)>ZYLN=Zqo7Sz2+@}ZSf^dwK?_8?SC>r`QtdaFyOPH=ah?P>j9)RBt`MbFO zxY@GPR;F3A(s3NkU^P)Vy=Q&W9&+g-F967zSdu<|>UOK(OYPnEy%0KQ77A9{*+&=e z-Uu}HzZfF(`UeVntnOyyI^G8p-^_GzNA!ad18I|(R=Qk>?QSOXOJ`G;BeHK(fCIe8 z{P5lBnBDc2EngqTZExJ-DB%Bj?5Lw}a>QwfSB$pFZ#~F*X=4q#O3g%S(XiiKwu^gl zFOod0)ck19=&(UD+Fyz2%{cbNtt4WR*Zw?zQKBgs2D_(0%aL&7Z zzxWJjyOsSCCdUQ<*PJmHQfljF1(hYK)8u;k9V|$r7!A71b3zM?->hxV0Aq@8favTW zB3t?2?c;e;P6?&Pn)1W0o6ZK+{sx0xkeruQXp~BsSmP4k#9=v?%J+Khphr5e*CDvE z1yzf^CdZ$=^0mfmp!ihi7jO+<5ibP5x3v+pIg(*_^Zr!>s1{tKe^NjX7o)7w-3DX7 zF$(|EIe?Q5w@L?B{x)^u)IYdyN3Q~qi5o030!<`rU+x}M?_B|cLVjSq=KM>a{A-S0 zqZ+?K2Fg~lsK8*x5vy)gv<7q3NeD@k2{J~iaN5s$aozF^n6$NSfAs;3ubb}FwDvVv ztov)}fm+B&;nZjUrmX1lCiLm0Y$#uK!)&SjC+AYc8Sto>T+Idh4Lx}<%|G>{rQUy; 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charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/java2020spring/MainFrame.java | 204 ++++++++++++++++++++++++++---- 1 file changed, 180 insertions(+), 24 deletions(-) diff --git a/src/java2020spring/MainFrame.java b/src/java2020spring/MainFrame.java index 79aa72f..facf1a3 100644 --- a/src/java2020spring/MainFrame.java +++ b/src/java2020spring/MainFrame.java @@ -3,7 +3,14 @@ package java2020spring; import java.awt.*; import java.awt.event.*; import java.io.*; +import java.sql.Date; +import java.time.Clock; +import java.time.Instant; +import java.time.ZoneId; + import javax.swing.*; +import javax.swing.event.CaretEvent; +import javax.swing.event.CaretListener; import javax.swing.filechooser.FileNameExtensionFilter; import javax.swing.undo.UndoManager; @@ -18,9 +25,14 @@ public class MainFrame extends JFrame { JMenu mnNewMenu,mnNewMenu_1,mnNewMenu_2,mnNewMenu_3,mnNewMenu_4;//创建菜单 JMenuItem mntmNewMenuItem,mntmNewMenuItem_1,mntmNewMenuItem_2,mntmNewMenuItem_3,mntmNewMenuItem_4, mntmNewMenuItem_5,mntmNewMenuItem_6,mntmNewMenuItem_7,mntmNewMenuItem_8,mntmNewMenuItem_9,mntmNewMenuItem_10, - mntmNewMenuItem_11,mntmNewMenuItem_12,mntmNewMenuItem_13,mntmNewMenuItem_14,mntmNewMenuItem_15;//创建菜单项 - JCheckBoxMenuItem chckbxmntmNewCheckItem,chckbxmntmNewCheckItem_1; - UndoManager undoManager; + mntmNewMenuItem_11,mntmNewMenuItem_12,mntmNewMenuItem_13,mntmNewMenuItem_14,mntmNewMenuItem_15,mntmNewMenuItem_16, + mntmNewMenuItem_17,mntmNewMenuItem_18,mntmNewMenuItem_19,mntmNewMenuItem_20,mntmNewMenuItem_21;//创建菜单项 + JCheckBoxMenuItem chckbxmntmNewCheckItem,chckbxmntmNewCheckItem_1;//菜单中的可选项 + UndoManager undoManager;//创建撤销、恢复管理器 + JPopupMenu popupMenu_1;//创建弹出菜单 + int line=0;//创建状态栏显示行数 + int colum=0;//创建状态栏显示列数 + int length=0;//状态栏显示字数 public static void main(String[] args) { @@ -58,12 +70,13 @@ public class MainFrame extends JFrame { JMenuBar menuBar = new JMenuBar();//创建菜单条 setJMenuBar(menuBar);//将菜单条放置到窗口顶端 - + +//文件菜单 JMenu mnNewMenu = new JMenu("文件(F)"); mnNewMenu.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); menuBar.add(mnNewMenu);//添加菜单 -//"新建"功能 + //"新建"功能 JMenuItem mntmNewMenuItem= new JMenuItem("新建(N)"); mntmNewMenuItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { @@ -74,7 +87,7 @@ public class MainFrame extends JFrame { mnNewMenu.add(mntmNewMenuItem); mntmNewMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,ActionEvent.CTRL_MASK)); -//"打开"功能 + //"打开"功能 JMenuItem mntmNewMenuItem_1 = new JMenuItem("打开(O)..."); mntmNewMenuItem_1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { @@ -103,7 +116,7 @@ public class MainFrame extends JFrame { mnNewMenu.add(mntmNewMenuItem_1); mntmNewMenuItem_1.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,ActionEvent.CTRL_MASK)); -//"保存"功能 + //"保存"功能 JMenuItem mntmNewMenuItem_2 = new JMenuItem("保存(S)"); mntmNewMenuItem_2.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { @@ -129,7 +142,7 @@ public class MainFrame extends JFrame { mnNewMenu.add(mntmNewMenuItem_2); mntmNewMenuItem_2.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,ActionEvent.CTRL_MASK)); -//"另存为"功能 + //"另存为"功能 JMenuItem mntmNewMenuItem_3 = new JMenuItem("另存为(A)"); mntmNewMenuItem_3.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { @@ -156,7 +169,7 @@ public class MainFrame extends JFrame { mnNewMenu.add(mntmNewMenuItem_3); mnNewMenu.addSeparator(); -//"退出"功能 + //"退出"功能 JMenuItem mntmNewMenuItem_4 = new JMenuItem("退出(X)"); mntmNewMenuItem_4.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { @@ -165,12 +178,13 @@ public class MainFrame extends JFrame { }); mntmNewMenuItem_4.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu.add(mntmNewMenuItem_4); - + + //编辑菜单 JMenu mnNewMenu_1 = new JMenu("编辑(E)"); mnNewMenu_1.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); menuBar.add(mnNewMenu_1); -//"撤销"功能 + //"撤销"功能 JMenuItem mntmNewMenuItem_5 = new JMenuItem("撤销(U)"); UndoManager undoManager=new UndoManager(); textArea.getDocument().addUndoableEditListener(undoManager);//为文本添加监听器 @@ -187,7 +201,7 @@ public class MainFrame extends JFrame { mnNewMenu_1.add(mntmNewMenuItem_5); mntmNewMenuItem_5.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Z,ActionEvent.CTRL_MASK)); -//"恢复"功能 + //"恢复"功能 JMenuItem mntmNewMenuItem_15 = new JMenuItem("恢复"); mntmNewMenuItem_15.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { @@ -202,7 +216,7 @@ public class MainFrame extends JFrame { mnNewMenu_1.add(mntmNewMenuItem_15); mnNewMenu_1.addSeparator(); -//"剪切"功能 + //"剪切"功能 JMenuItem mntmNewMenuItem_6 = new JMenuItem("剪切(T)"); mntmNewMenuItem_6.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { @@ -213,7 +227,7 @@ public class MainFrame extends JFrame { mnNewMenu_1.add(mntmNewMenuItem_6); mntmNewMenuItem_6.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X,ActionEvent.CTRL_MASK)); -//"复制"功能 + //"复制"功能 JMenuItem mntmNewMenuItem_7 = new JMenuItem("复制(C)"); mntmNewMenuItem_7.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { @@ -224,7 +238,7 @@ public class MainFrame extends JFrame { mnNewMenu_1.add(mntmNewMenuItem_7); mntmNewMenuItem_7.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,ActionEvent.CTRL_MASK)); -//"粘贴"功能 + //"粘贴"功能 JMenuItem mntmNewMenuItem_8 = new JMenuItem("粘贴(P)"); mntmNewMenuItem_8.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { @@ -236,7 +250,7 @@ public class MainFrame extends JFrame { mntmNewMenuItem_8.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V,ActionEvent.CTRL_MASK)); mnNewMenu_1.addSeparator(); -//"全选"功能 + //"全选"功能 JMenuItem mntmNewMenuItem_12 = new JMenuItem("全选(A)"); mntmNewMenuItem_12.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { @@ -247,7 +261,7 @@ public class MainFrame extends JFrame { mnNewMenu_1.add(mntmNewMenuItem_12); mntmNewMenuItem_12.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A,ActionEvent.CTRL_MASK)); -//"删除"功能 + //"删除"功能 JMenuItem mntmNewMenuItem_9 = new JMenuItem("删除(L)"); mntmNewMenuItem_9.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { @@ -258,12 +272,13 @@ public class MainFrame extends JFrame { mntmNewMenuItem_9.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_1.add(mntmNewMenuItem_9); mntmNewMenuItem_9.setMnemonic(KeyEvent.VK_DELETE); - + +//格式菜单 JMenu mnNewMenu_2 = new JMenu("格式(O)"); mnNewMenu_2.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); menuBar.add(mnNewMenu_2); -//"自动换行"功能 + //"自动换行"功能 JCheckBoxMenuItem chckbxmntmNewCheckItem = new JCheckBoxMenuItem("自动换行(W)"); chckbxmntmNewCheckItem.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { @@ -276,30 +291,171 @@ public class MainFrame extends JFrame { }); chckbxmntmNewCheckItem.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_2.add(chckbxmntmNewCheckItem); + +//快捷菜单 + JPopupMenu popupMenu_1 = new JPopupMenu(); + addPopup(textArea, popupMenu_1); + //撤销 + JMenuItem mntmNewMenuItem_16 = new JMenuItem("撤销(U)"); + mntmNewMenuItem_16.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + if(undoManager.canUndo()) { + undoManager.undo();//撤销上一个输入的内容 + } else { + JOptionPane.showMessageDialog(null, "无法撤销","警告",JOptionPane.WARNING_MESSAGE); + } + } + }); + mntmNewMenuItem_16.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + popupMenu_1.add(mntmNewMenuItem_16); + mntmNewMenuItem_16.setMnemonic('U'); + + JSeparator separator = new JSeparator(); + popupMenu_1.add(separator); + + //剪切 + JMenuItem mntmNewMenuItem_17 = new JMenuItem("剪切(T)"); + mntmNewMenuItem_17.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.cut();//剪切选中的内容 + } + }); + mntmNewMenuItem_17.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + popupMenu_1.add(mntmNewMenuItem_17); + mntmNewMenuItem_17.setMnemonic('T'); + + //复制 + JMenuItem mntmNewMenuItem_18 = new JMenuItem("复制(C)"); + mntmNewMenuItem_18.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.copy();//复制选中的内容 + } + }); + mntmNewMenuItem_18.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + popupMenu_1.add(mntmNewMenuItem_18); + mntmNewMenuItem_18.setMnemonic('C'); + + //粘贴 + JMenuItem mntmNewMenuItem_19 = new JMenuItem("粘贴(P)"); + mntmNewMenuItem_19.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.paste();//输出剪切或复制的内容 + } + }); + mntmNewMenuItem_19.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + popupMenu_1.add(mntmNewMenuItem_19); + mntmNewMenuItem_19.setMnemonic('P'); + + //删除 + JMenuItem mntmNewMenuItem_20 = new JMenuItem("删除(D)"); + mntmNewMenuItem_20.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + String string=textArea.getText().toString(); + textArea.setText(string.substring(0,textArea.getSelectionStart()));//删除选中的文本 + } + }); + mntmNewMenuItem_20.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + popupMenu_1.add(mntmNewMenuItem_20); + mntmNewMenuItem_20.setMnemonic('D'); + + JSeparator separator_1 = new JSeparator(); + popupMenu_1.add(separator_1); + + //全选 + JMenuItem mntmNewMenuItem_21 = new JMenuItem("全选(A)"); + mntmNewMenuItem_21.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.selectAll();//选中文本区中的所有内容 + } + }); + mntmNewMenuItem_21.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + popupMenu_1.add(mntmNewMenuItem_21); + mntmNewMenuItem_21.setMnemonic('A'); -//"查看"功能 +//查看菜单 JMenu mnNewMenu_3 = new JMenu("查看(V)"); mnNewMenu_3.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); menuBar.add(mnNewMenu_3); -//"状态栏"功能 + //"状态栏"功能 JCheckBoxMenuItem chckbxmntmNewCheckItem_1 = new JCheckBoxMenuItem("状态栏(S)"); + JToolBar toolBar=new JToolBar(); + toolBar.setSize(textArea.getSize().width,12); + this.add(toolBar,BorderLayout.SOUTH); + Date timeDate=new Date(System.currentTimeMillis()); + Label label_1=new Label("时间:"+timeDate); + Label label_2=new Label("第"+line+"行，第"+colum+"列"); + Label label_3=new Label("共计"+length+"字"); + toolBar.add(label_1); + toolBar.addSeparator(); + toolBar.add(label_2); + toolBar.addSeparator(); + toolBar.add(label_3); + textArea.addCaretListener(new CaretListener() { + public void caretUpdate(CaretEvent e) { + try { int position=textArea.getCaretPosition(); + int set=e.getDot(); + line=textArea.getLineOfOffset(e.getDot()); + colum=e.getDot() - textArea.getLineStartOffset(line); + label_2.setText("第"+(line+1)+"行，第"+(colum+1)+"列"); + length=textArea.getText().replaceAll("\\s+", "").length(); + label_3.setText("共计"+length+"字"); + } catch (Exception e1) {} + } + }); + toolBar.setVisible(true); + toolBar.setFloatable(false); + label_1.setVisible(true); + label_2.setVisible(true); + label_3.setVisible(true); + chckbxmntmNewCheckItem_1.setState(true); + chckbxmntmNewCheckItem_1.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + if(chckbxmntmNewCheckItem_1.getState()) { + label_2.setVisible(true); + label_3.setVisible(true); + } + else { + label_2.setVisible(false); + label_3.setVisible(false); + } + } + }); chckbxmntmNewCheckItem_1.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_3.add(chckbxmntmNewCheckItem_1); - + +//帮助菜单 JMenu mnNewMenu_4 = new JMenu("帮助(H)"); mnNewMenu_4.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); menuBar.add(mnNewMenu_4); -//"查看帮助"功能 + //"查看帮助"功能 JMenuItem mntmNewMenuItem_13 = new JMenuItem("查看帮助(H)"); mntmNewMenuItem_13.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_4.add(mntmNewMenuItem_13); - + + //"关于记事本"功能 JMenuItem mntmNewMenuItem_14 = new JMenuItem("关于记事本(A)"); mntmNewMenuItem_14.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_4.add(mntmNewMenuItem_14); } + private static void addPopup(Component component, final JPopupMenu popup) { + component.addMouseListener(new MouseAdapter() { + public void mousePressed(MouseEvent e) { + if (e.isPopupTrigger()) { + showMenu(e); + } + } + public void mouseReleased(MouseEvent e) { + if (e.isPopupTrigger()) { + showMenu(e); + } + } + private void showMenu(MouseEvent e) { + popup.show(e.getComponent(), e.getX(), e.getY()); + } + }); + } } -- Gitee From cce2c25fa8c853ebe150385ec703d5a42e9941e1 Mon Sep 17 00:00:00 2001 From: 86131 <86131@Xiuyi> Date: Sun, 6 Jun 2021 23:33:32 +0800 Subject: [PATCH 3/5] =?UTF-8?q?=E8=AE=B0=E4=BA=8B=E6=9C=AC=E5=8A=9F?= =?UTF-8?q?=E8=83=BD=E5=B7=B2=E5=9F=BA=E6=9C=AC=E5=AE=9E=E7=8E=B0=EF=BC=8C?= =?UTF-8?q?=E6=8E=A5=E4=B8=8B=E6=9D=A5=E5=B0=86=E5=AE=8C=E5=96=84=E8=AE=B0?= =?UTF-8?q?=E4=BA=8B=E6=9C=AC=E7=9A=84=E5=B8=AE=E5=8A=A9=E6=96=87=E6=A1=A3?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/java2020spring/MainFrame.java | 182 ++++++++++++++++++++++++++++-- 1 file changed, 171 insertions(+), 11 deletions(-) diff --git a/src/java2020spring/MainFrame.java b/src/java2020spring/MainFrame.java index facf1a3..ad68a9f 100644 --- a/src/java2020spring/MainFrame.java +++ b/src/java2020spring/MainFrame.java @@ -1,12 +1,10 @@ package java2020spring; import java.awt.*; + import java.awt.event.*; import java.io.*; import java.sql.Date; -import java.time.Clock; -import java.time.Instant; -import java.time.ZoneId; import javax.swing.*; import javax.swing.event.CaretEvent; @@ -14,7 +12,7 @@ import javax.swing.event.CaretListener; import javax.swing.filechooser.FileNameExtensionFilter; import javax.swing.undo.UndoManager; -public class MainFrame extends JFrame { +public class MainFrame extends JFrame{ JTextArea textArea;//创建文本区 JFileChooser FileChooser;//文件选择器 FileReader fileReader;//文件字符输入流 @@ -26,7 +24,9 @@ public class MainFrame extends JFrame { JMenuItem mntmNewMenuItem,mntmNewMenuItem_1,mntmNewMenuItem_2,mntmNewMenuItem_3,mntmNewMenuItem_4, mntmNewMenuItem_5,mntmNewMenuItem_6,mntmNewMenuItem_7,mntmNewMenuItem_8,mntmNewMenuItem_9,mntmNewMenuItem_10, mntmNewMenuItem_11,mntmNewMenuItem_12,mntmNewMenuItem_13,mntmNewMenuItem_14,mntmNewMenuItem_15,mntmNewMenuItem_16, - mntmNewMenuItem_17,mntmNewMenuItem_18,mntmNewMenuItem_19,mntmNewMenuItem_20,mntmNewMenuItem_21;//创建菜单项 + mntmNewMenuItem_17,mntmNewMenuItem_18,mntmNewMenuItem_19,mntmNewMenuItem_20,mntmNewMenuItem_21,mntmNewMenuItem_22, + mntmNewMenuItem_23,mntmNewMenuItem_24,mntmNewMenuItem_25,mntmNewMenuItem_26,mntmNewMenuItem_27,mntmNewMenuItem_28, + mntmNewMenuItem_29;//创建菜单项 JCheckBoxMenuItem chckbxmntmNewCheckItem,chckbxmntmNewCheckItem_1;//菜单中的可选项 UndoManager undoManager;//创建撤销、恢复管理器 JPopupMenu popupMenu_1;//创建弹出菜单 @@ -292,6 +292,140 @@ public class MainFrame extends JFrame { chckbxmntmNewCheckItem.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_2.add(chckbxmntmNewCheckItem); + //"背景颜色"功能 + JMenu mnNewMenu_5 = new JMenu("背景颜色"); + mnNewMenu_5.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_2.add(mnNewMenu_5); + // + JMenuItem mntmNewMenuItem_23 = new JMenuItem("白色"); + mntmNewMenuItem_23.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.setBackground(Color.WHITE); + } + }); + mntmNewMenuItem_23.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_5.add(mntmNewMenuItem_23); + + // + JMenuItem mntmNewMenuItem_24 = new JMenuItem("黑色"); + mntmNewMenuItem_24.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.setBackground(Color.BLACK); + } + }); + mntmNewMenuItem_24.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_5.add(mntmNewMenuItem_24); + + // + JMenuItem mntmNewMenuItem_25 = new JMenuItem("灰色"); + mntmNewMenuItem_25.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.setBackground(Color.GRAY); + } + }); + mntmNewMenuItem_25.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_5.add(mntmNewMenuItem_25); + + // + JMenuItem mntmNewMenuItem_22 = new JMenuItem("粉色"); + mntmNewMenuItem_22.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.setBackground(Color.PINK); + } + }); + mntmNewMenuItem_22.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_5.add(mntmNewMenuItem_22); + + // + JMenuItem mntmNewMenuItem_26 = new JMenuItem("红色"); + mntmNewMenuItem_26.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.setBackground(Color.RED); + } + }); + mntmNewMenuItem_26.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_5.add(mntmNewMenuItem_26); + + // + JMenuItem mntmNewMenuItem_27 = new JMenuItem("黄色"); + mntmNewMenuItem_27.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.setBackground(Color.YELLOW); + } + }); + mntmNewMenuItem_27.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_5.add(mntmNewMenuItem_27); + + // + JMenuItem mntmNewMenuItem_28 = new JMenuItem("绿色"); + mntmNewMenuItem_28.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.setBackground(Color.GREEN); + } + }); + mntmNewMenuItem_28.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_5.add(mntmNewMenuItem_28); + + //"字体颜色"功能 + JMenu mnNewMenu_6 = new JMenu("字体颜色"); + mnNewMenu_6.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_2.add(mnNewMenu_6); + + JMenuItem mntmNewMenuItem_29 = new JMenuItem("白色"); + mntmNewMenuItem_29.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.setForeground(Color.WHITE); + } + }); + mntmNewMenuItem_29.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_6.add(mntmNewMenuItem_29); + + JMenuItem mntmNewMenuItem_30 = new JMenuItem("黑色"); + mntmNewMenuItem_30.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.setForeground(Color.BLACK); + } + }); + mntmNewMenuItem_30.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_6.add(mntmNewMenuItem_30); + + JMenuItem mntmNewMenuItem_31 = new JMenuItem("粉色"); + mntmNewMenuItem_31.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.setForeground(Color.PINK); + } + }); + mntmNewMenuItem_31.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_6.add(mntmNewMenuItem_31); + + JMenuItem mntmNewMenuItem_32 = new JMenuItem("黄色"); + mntmNewMenuItem_32.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.setForeground(Color.YELLOW); + } + }); + mntmNewMenuItem_32.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_6.add(mntmNewMenuItem_32); + + JMenuItem mntmNewMenuItem_33 = new JMenuItem("绿色"); + mntmNewMenuItem_33.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.setForeground(Color.GREEN); + } + }); + mntmNewMenuItem_33.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_6.add(mntmNewMenuItem_33); + + JMenuItem mntmNewMenuItem_34 = new JMenuItem("红色"); + mntmNewMenuItem_34.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + textArea.setForeground(Color.RED); + } + }); + mntmNewMenuItem_34.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mnNewMenu_6.add(mntmNewMenuItem_34); + + //快捷菜单 JPopupMenu popupMenu_1 = new JPopupMenu(); addPopup(textArea, popupMenu_1); @@ -379,13 +513,13 @@ public class MainFrame extends JFrame { //"状态栏"功能 JCheckBoxMenuItem chckbxmntmNewCheckItem_1 = new JCheckBoxMenuItem("状态栏(S)"); - JToolBar toolBar=new JToolBar(); + JToolBar toolBar=new JToolBar();//创建工具栏 toolBar.setSize(textArea.getSize().width,12); - this.add(toolBar,BorderLayout.SOUTH); - Date timeDate=new Date(System.currentTimeMillis()); - Label label_1=new Label("时间:"+timeDate); - Label label_2=new Label("第"+line+"行，第"+colum+"列"); - Label label_3=new Label("共计"+length+"字"); + getContentPane().add(toolBar,BorderLayout.SOUTH); + Date timeDate=new Date(System.currentTimeMillis());//创建时间 + Label label_1=new Label("时间:"+timeDate);//时间 + Label label_2=new Label("第"+line+"行，第"+colum+"列");//状态 + Label label_3=new Label("共计"+length+"字");//字数统计 toolBar.add(label_1); toolBar.addSeparator(); toolBar.add(label_2); @@ -431,16 +565,42 @@ public class MainFrame extends JFrame { //"查看帮助"功能 JMenuItem mntmNewMenuItem_13 = new JMenuItem("查看帮助(H)"); + mntmNewMenuItem_13.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + JFrame frame_2=new JFrame("查看帮助"); + frame_2.setLocation(200, 50); + frame_2.setSize(500,500); + frame_2.setVisible(true); + frame_2.setBackground(Color.LIGHT_GRAY); + JLabel label_5=new JLabel(); + frame_2.add(label_5); + label_5.setText("记事本帮助
"); + + } + }); mntmNewMenuItem_13.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_4.add(mntmNewMenuItem_13); //"关于记事本"功能 JMenuItem mntmNewMenuItem_14 = new JMenuItem("关于记事本(A)"); + mntmNewMenuItem_14.addActionListener(new ActionListener() { + public void actionPerformed(ActionEvent e) { + JFrame frame_1=new JFrame("关于记事本"); + frame_1.setLocation(200, 50); + frame_1.setSize(500,500); + frame_1.setVisible(true); + JLabel label_4=new JLabel("————————————欢迎使用小玉的记事本————————————
小玉的邮箱：1751012123@qq.com " + + "如有错误，还请老师斧正
吴小玉 信管1班 202025710123"); + label_4.setHorizontalAlignment(SwingConstants.CENTER); + frame_1.getContentPane().add(label_4); + } + }); mntmNewMenuItem_14.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_4.add(mntmNewMenuItem_14); } + private static void addPopup(Component component, final JPopupMenu popup) { component.addMouseListener(new MouseAdapter() { public void mousePressed(MouseEvent e) { -- Gitee From ee1fb61c43772e0ce17f2dedebd660a4ab120791 Mon Sep 17 00:00:00 2001 From: 86131 <86131@Xiuyi> Date: Mon, 7 Jun 2021 23:55:42 +0800 Subject: [PATCH 4/5] =?UTF-8?q?=E5=AE=8C=E5=96=84=E4=BA=86=E8=AE=B0?= =?UTF-8?q?=E4=BA=8B=E6=9C=AC=E5=B8=AE=E5=8A=A9=E5=8A=9F=E8=83=BD?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/java2020spring/MainFrame.java | 30 ++++++++++++++++++++++++++---- 1 file changed, 26 insertions(+), 4 deletions(-) diff --git a/src/java2020spring/MainFrame.java b/src/java2020spring/MainFrame.java index ad68a9f..9e73497 100644 --- a/src/java2020spring/MainFrame.java +++ b/src/java2020spring/MainFrame.java @@ -85,6 +85,7 @@ public class MainFrame extends JFrame{ }); mntmNewMenuItem.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu.add(mntmNewMenuItem); + mntmNewMenuItem.setMnemonic('N'); mntmNewMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N,ActionEvent.CTRL_MASK)); //"打开"功能 @@ -114,6 +115,7 @@ public class MainFrame extends JFrame{ }); mntmNewMenuItem_1.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu.add(mntmNewMenuItem_1); + mntmNewMenuItem_1.setMnemonic('O'); mntmNewMenuItem_1.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O,ActionEvent.CTRL_MASK)); //"保存"功能 @@ -140,6 +142,7 @@ public class MainFrame extends JFrame{ }); mntmNewMenuItem_2.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu.add(mntmNewMenuItem_2); + mntmNewMenuItem_2.setMnemonic('S'); mntmNewMenuItem_2.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,ActionEvent.CTRL_MASK)); //"另存为"功能 @@ -165,6 +168,7 @@ public class MainFrame extends JFrame{ } }); mntmNewMenuItem_3.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); + mntmNewMenuItem_3.setMnemonic('A'); mntmNewMenuItem_3.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,ActionEvent.CTRL_MASK|ActionEvent.SHIFT_MASK)); mnNewMenu.add(mntmNewMenuItem_3); mnNewMenu.addSeparator(); @@ -178,8 +182,9 @@ public class MainFrame extends JFrame{ }); mntmNewMenuItem_4.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu.add(mntmNewMenuItem_4); + mntmNewMenuItem_4.setMnemonic('X'); - //编辑菜单 +//编辑菜单 JMenu mnNewMenu_1 = new JMenu("编辑(E)"); mnNewMenu_1.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); menuBar.add(mnNewMenu_1); @@ -199,6 +204,7 @@ public class MainFrame extends JFrame{ }); mntmNewMenuItem_5.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_1.add(mntmNewMenuItem_5); + mntmNewMenuItem_5.setMnemonic('U'); mntmNewMenuItem_5.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Z,ActionEvent.CTRL_MASK)); //"恢复"功能 @@ -225,6 +231,7 @@ public class MainFrame extends JFrame{ }); mntmNewMenuItem_6.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_1.add(mntmNewMenuItem_6); + mntmNewMenuItem_6.setMnemonic('T'); mntmNewMenuItem_6.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X,ActionEvent.CTRL_MASK)); //"复制"功能 @@ -236,6 +243,7 @@ public class MainFrame extends JFrame{ }); mntmNewMenuItem_7.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_1.add(mntmNewMenuItem_7); + mntmNewMenuItem_7.setMnemonic('C'); mntmNewMenuItem_7.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C,ActionEvent.CTRL_MASK)); //"粘贴"功能 @@ -247,6 +255,7 @@ public class MainFrame extends JFrame{ }); mntmNewMenuItem_8.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_1.add(mntmNewMenuItem_8); + mntmNewMenuItem_8.setMnemonic('P'); mntmNewMenuItem_8.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V,ActionEvent.CTRL_MASK)); mnNewMenu_1.addSeparator(); @@ -259,6 +268,7 @@ public class MainFrame extends JFrame{ }); mntmNewMenuItem_12.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_1.add(mntmNewMenuItem_12); + mntmNewMenuItem_12.setMnemonic('A'); mntmNewMenuItem_12.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A,ActionEvent.CTRL_MASK)); //"删除"功能 @@ -271,6 +281,7 @@ public class MainFrame extends JFrame{ }); mntmNewMenuItem_9.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_1.add(mntmNewMenuItem_9); + mntmNewMenuItem_9.setMnemonic('L'); mntmNewMenuItem_9.setMnemonic(KeyEvent.VK_DELETE); //格式菜单 @@ -291,6 +302,7 @@ public class MainFrame extends JFrame{ }); chckbxmntmNewCheckItem.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_2.add(chckbxmntmNewCheckItem); + chckbxmntmNewCheckItem.setMnemonic('W'); //"背景颜色"功能 JMenu mnNewMenu_5 = new JMenu("背景颜色"); @@ -557,6 +569,7 @@ public class MainFrame extends JFrame{ }); chckbxmntmNewCheckItem_1.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_3.add(chckbxmntmNewCheckItem_1); + chckbxmntmNewCheckItem_1.setMnemonic('S'); //帮助菜单 JMenu mnNewMenu_4 = new JMenu("帮助(H)"); @@ -569,17 +582,26 @@ public class MainFrame extends JFrame{ public void actionPerformed(ActionEvent e) { JFrame frame_2=new JFrame("查看帮助"); frame_2.setLocation(200, 50); - frame_2.setSize(500,500); + frame_2.setSize(800,500); frame_2.setVisible(true); frame_2.setBackground(Color.LIGHT_GRAY); JLabel label_5=new JLabel(); frame_2.add(label_5); - label_5.setText("记事本帮助
"); + label_5.setText("记事本帮助
小玉记事本共有5个大的菜单项目，总计19余个子功能
菜单一“文件”
//“新建”功能：鼠标点击新建按钮" + + "，立即清空记事本中所有内容(不做保存)。快捷键：Ctrl+N
//“打开”功能：鼠标点击打开按钮，弹出文件选择器窗口，可打开本地文件。" + + "文件类型分为文本文件和所有文件。快捷键:Ctrl+O
//“保存”功能：鼠标点击保存按钮，弹出文件选择窗口，选择保存路径并命名即可保存。快捷键：" + + "Ctrl+S
//“另存为”功能：鼠标点击另存为按钮，，弹出文件选择窗口，选择保存路径并命名即可保存。快捷键：Ctrl+Shift+S
//“退出”" + + "功能：鼠标点击退出按钮，立即关闭记事本窗口(不做保存)。
菜单二“编辑”
//“撤销”功能：鼠标点击撤销按钮，撤销上一步操作。快捷键：Ctrl+Z" + + "
//“恢复”功能：鼠标点击回复按钮，恢复上一步撤销的操作。
//“剪切”功能：鼠标选中文本，点击剪切按钮，即可剪切文本，再点击粘贴按钮，即可" + + "将剪切下来的文本粘贴在光标的位置之后。快捷键：Ctrl+X
//“复制”功能：鼠标选中文本，点击复制按钮，即可复制文本，再点击粘贴按钮，即可将选中" + + "的文本粘贴在光标的位置之后。快捷键：Ctrl+C
//“粘贴”功能：鼠标点击粘贴按钮，将剪切或复制的文本粘贴在光标的位置之后。快捷键：Ctrl+V
" + + "//“全选”功能：鼠标点击全选按钮，选中文本框中的所有内容。快捷键：Ctrl+A
//“删除”功能：鼠标选中文本，点击删除按钮，即可删除所选中的内容。"); } }); mntmNewMenuItem_13.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_4.add(mntmNewMenuItem_13); + mntmNewMenuItem_13.setMnemonic('H'); //"关于记事本"功能 JMenuItem mntmNewMenuItem_14 = new JMenuItem("关于记事本(A)"); @@ -597,7 +619,7 @@ public class MainFrame extends JFrame{ }); mntmNewMenuItem_14.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_4.add(mntmNewMenuItem_14); - + mntmNewMenuItem_14.setMnemonic('A'); } -- Gitee From 074e9c624def65f3cd23b377644e1d2623e56de7 Mon Sep 17 00:00:00 2001 From: 86131 <86131@Xiuyi> Date: Tue, 8 Jun 2021 09:02:32 +0800 Subject: [PATCH 5/5] =?UTF-8?q?=E5=AE=8C=E6=88=90=E4=BA=86=E8=AE=B0?= =?UTF-8?q?=E4=BA=8B=E6=9C=AC=E7=9A=84=E6=9F=A5=E7=9C=8B=E5=B8=AE=E5=8A=A9?= =?UTF-8?q?=E5=8A=9F=E8=83=BD?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/java2020spring/MainFrame.java | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/src/java2020spring/MainFrame.java b/src/java2020spring/MainFrame.java index 9e73497..e36498f 100644 --- a/src/java2020spring/MainFrame.java +++ b/src/java2020spring/MainFrame.java @@ -272,7 +272,7 @@ public class MainFrame extends JFrame{ mntmNewMenuItem_12.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A,ActionEvent.CTRL_MASK)); //"删除"功能 - JMenuItem mntmNewMenuItem_9 = new JMenuItem("删除(L)"); + JMenuItem mntmNewMenuItem_9 = new JMenuItem("删除(DEL)"); mntmNewMenuItem_9.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String string=textArea.getText().toString(); @@ -281,7 +281,6 @@ public class MainFrame extends JFrame{ }); mntmNewMenuItem_9.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); mnNewMenu_1.add(mntmNewMenuItem_9); - mntmNewMenuItem_9.setMnemonic('L'); mntmNewMenuItem_9.setMnemonic(KeyEvent.VK_DELETE); //格式菜单 @@ -595,8 +594,14 @@ public class MainFrame extends JFrame{ + "
//“恢复”功能：鼠标点击回复按钮，恢复上一步撤销的操作。
//“剪切”功能：鼠标选中文本，点击剪切按钮，即可剪切文本，再点击粘贴按钮，即可" + "将剪切下来的文本粘贴在光标的位置之后。快捷键：Ctrl+X
//“复制”功能：鼠标选中文本，点击复制按钮，即可复制文本，再点击粘贴按钮，即可将选中" + "的文本粘贴在光标的位置之后。快捷键：Ctrl+C
//“粘贴”功能：鼠标点击粘贴按钮，将剪切或复制的文本粘贴在光标的位置之后。快捷键：Ctrl+V
" - + "//“全选”功能：鼠标点击全选按钮，选中文本框中的所有内容。快捷键：Ctrl+A
//“删除”功能：鼠标选中文本，点击删除按钮，即可删除所选中的内容。"); - + + "//“全选”功能：鼠标点击全选按钮，选中文本框中的所有内容。快捷键：Ctrl+A
//“删除”功能：鼠标选中文本，点击删除按钮，即可删除所选中的内容。
" + + "菜单三“格式”
//“自动换行”功能：鼠标勾选自动换行按钮，当文本行溢出记事本框时自动换行。
//“背景颜色”功能：鼠标移动至背景颜色菜单上，将会" + + "打开子菜单，点击所需设置颜色的按钮，即可改变文本区颜色(初始颜色为白色)。
//“字体颜色”功能：鼠标移动至字体颜色菜单上，将会打开子菜单，点击所需" + + "设置颜色的按钮，即可改变输入文本的颜色(初始颜色为黑色)。
菜单四“查看”
//“状态栏”功能：鼠标取消状态栏按钮，记事本下方显示行、列数、总共" + + "字数将会消失，时间显示不变(初始状态为选中)。
菜单五“帮助”
//“查看帮助”功能：鼠标点击查看帮助按钮，将弹出小玉记事本的使用帮助，功能简介等。" + + "
//“关于记事本”功能：鼠标点击关于记事本按钮，将弹出小玉记事本的作者信息以及留言。
“快捷菜单”功能：鼠标右键点击文本框任意位置，将弹出" + + "快捷编辑菜单。"); + label_5.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 12)); } }); mntmNewMenuItem_13.setFont(new Font("Microsoft YaHei UI", Font.PLAIN, 14)); -- Gitee