數(shù)據(jù)結(jié)構(gòu)課程設(shè)計(jì)報(bào)告簡(jiǎn)易英漢詞典系統(tǒng)

1、廣西大學(xué)課程設(shè)計(jì)報(bào)告課程： 數(shù)據(jù)結(jié)構(gòu)題目：簡(jiǎn)易英漢詞典系統(tǒng)學(xué) 院：_計(jì)算機(jī)與電子信息學(xué)院_ 專(zhuān) 業(yè)：_計(jì)網(wǎng)類(lèi)_ 班 級(jí)：_計(jì)網(wǎng)071_ _ _ 學(xué) 號(hào)： 0 學(xué)生姓名： 指導(dǎo)教師：_ _ 二九 年 四 月一、實(shí)驗(yàn)?zāi)康暮鸵蟆緦?shí)驗(yàn)?zāi)康摹吭O(shè)計(jì)一個(gè)簡(jiǎn)易英漢詞典系統(tǒng)，實(shí)現(xiàn)基本的單詞檢索功能，即輸入英文單詞則系統(tǒng)輸出其漢語(yǔ)，反之亦然；并能夠進(jìn)行基本的詞典維護(hù)操作，包括插入和刪除，要求按英語(yǔ)的詞典順序排列單詞?！驹O(shè)計(jì)要求】（1）使用圖形化界面。（2）建立英語(yǔ)詞匯表，輸入為小寫(xiě)字母時(shí)為合法輸入。（3）每個(gè)詞條應(yīng)包含單詞的英語(yǔ)形式、漢語(yǔ)釋義、發(fā)音等基本信息。二、設(shè)計(jì)概要：1、根據(jù)實(shí)驗(yàn)要求，與及所了解的數(shù)據(jù)類(lèi)型

2、相關(guān)知識(shí)，定義了如下數(shù)據(jù)類(lèi)型：鏈接數(shù)據(jù)庫(kù)聲明的變量：connection connection = null;statement statement = null;resultset result = null;聲明全局變量：string newword, pronunciations， indexword="", deleteword, searchenglish, searchchinese,issound;它們分別是：新增單詞、新單詞音標(biāo)、引擎詞、刪除詞、查找的英文、查找的漢語(yǔ)、判斷音頻是否存在。2、實(shí)驗(yàn)功能所定義的各種按鈕、文本框、選擇框和列表框：取消刪除功能按鈕：

3、jbutton deletecancelbutton = new jbutton();英漢互譯面板上的發(fā)音按鈕：jbutton sound = new jbutton();瀏覽詞庫(kù)面板上的發(fā)音按鈕：jbutton scansoundbutton = new jbutton();添加單詞的按鈕：jbutton addokjbutton = new jbutton();取消添加功能的按鈕：jbutton addcancelbutton = new jbutton();刪除詞庫(kù)單詞信息按鈕：jbutton deleteokbutton = new jbutton();瀏覽詞庫(kù)按鈕：jbutton s

4、canbutton = new jbutton();要查找的英文或漢語(yǔ)的文本框輸入框：jtextfield inputsearchword = new jtextfield();新增單詞文本輸入框：jtextfield inputnewword = new jtextfield();新增單詞音標(biāo)輸入框：jtextfield pronunciation = new jtextfield();新增單詞釋義輸入框：jtextfield newwordchinese = new jtextfield();新增單詞過(guò)去式輸入框：jtextfield newwordpreterite = new jtex

5、tfield();新增單詞現(xiàn)在進(jìn)行時(shí)態(tài)輸入框：jtextfield newwordmodernism = new jtextfield();要?jiǎng)h除的單詞輸入框：jtextfield inputdeleteword = new jtextfield();新增單詞詞性復(fù)選框：jcombobox newwordclass = new jcombobox();列出要查找的詞的記錄信息的多行文本框：textarea outputsearchenglish = new textarea();列出要?jiǎng)h除的單詞的記錄信息的多行文本框：textarea deletewordchinese = new texta

6、rea();列出瀏覽時(shí)需瀏覽單詞信息的多行文本框： textarea scanoutput = new textarea();defaultlistmodel model = new defaultlistmodel(); 列出所查找的英文或漢語(yǔ)對(duì)應(yīng)的單詞的列表框：jlist listsearchenglish = new jlist(model);列出備選英標(biāo)的列表框：jlist pronunciationjlist = new jlist(listitem);列出可能且可以被刪除的單詞的列表框：jlist deletejlist = new jlist(model);列出詞庫(kù)所有單詞的列表

7、框： jlist scanwordjlist = new jlist(model);3、實(shí)現(xiàn)功能所定義的各種函數(shù)：1）public static string return(string str) 將數(shù)據(jù)庫(kù)里的單詞的音標(biāo)進(jìn)行還原。因?yàn)橛行┮魳?biāo)不能正確存入數(shù)據(jù)庫(kù)，只能以其它字符代替，讀取時(shí)再還原。2）public void play(string word) 播放單詞word的音頻。3）public void inputsearch_caretupdate(caretevent e) 當(dāng)inputsearch(注：要查找的詞)輸入框值改變時(shí)，listsearchenglish（注：列出查找結(jié)果）

8、列表框和outputsearchenglish（注：寫(xiě)出單詞信息）文本輸出框被清空，取inputsearch輸入框值賦給indexword，如果indexword不為空，連接數(shù)據(jù)庫(kù)；再判斷要查找的是英語(yǔ)，還是漢語(yǔ)，根據(jù)判斷結(jié)果進(jìn)行查找，并將結(jié)果集按升序排列，輸出到listsearchenglish列表框4）public void listsearchenglish_mouseclicked(mouseevent me) 當(dāng)鼠標(biāo)單擊listsearchenglish列表框時(shí)，取所選選項(xiàng)的值賦給變量searchenglish，去掉其兩端空格，outputsearchenglish文本輸出框被清空，

9、發(fā)音按鈕變成灰白色，從數(shù)據(jù)庫(kù)讀取要查找的單詞，將其音標(biāo)進(jìn)行還原，將單詞信息輸出到outputsearchenglish文本框，如果可以發(fā)音，發(fā)音按鈕變紅色，否則indexword被賦給空值5）public void sound_actionperformed(actionevent e) 如果查找單詞有音頻且查找詞不為空，則可發(fā)音，否則按鈕變?yōu)榛野咨?）public void inputnewword_caretupdate(caretevent e) 一旦輸入的新單詞字母不是小寫(xiě)字母或空格時(shí)，彈出提示框7）public void pronunciation_caretupdate(caret

10、event e) 對(duì)輸入的音標(biāo)進(jìn)行處理，因?yàn)樽址鹵0254、u01dd、u00e6 存入數(shù)據(jù)庫(kù)時(shí)會(huì)變成？或出錯(cuò)，所以用0、1、2、4分別代替他們，讀取時(shí)通過(guò)調(diào)用return函數(shù)還原,且將音標(biāo)兩端和中間空格去掉8）public void pronunciationjlist_mouseclicked(mouseevent me) 當(dāng)在音標(biāo)選項(xiàng)列表單擊鼠標(biāo)選擇音標(biāo)時(shí)，將所選音標(biāo)輸入音標(biāo)輸入框9）public void addokjbutton_actionperformed(actionevent e) 讀取未讀取的輸入框的字符，去掉單詞、注釋各自?xún)啥丝崭?，并將去掉它們各自中間兩個(gè)或兩個(gè)以上的空格

11、留一個(gè)空格，接著在數(shù)據(jù)庫(kù)查找添加的單詞是否已存在，若已存在，彈出提示框，不能再添加，否則向數(shù)據(jù)庫(kù)添加新單詞信息，最后清空所有輸入框10）public void addcancelbutton_actionperformed(actionevent e)點(diǎn)擊添加取消按鈕，新增面板所有輸入框被清空11）public void inputdeleteword_caretupdate(caretevent e)當(dāng)inputdeleteword輸入框值改變時(shí)，清空deletejlist列表框，讀取inputdeleteword輸入框值賦給變量deleteword，按模糊查找法查找以deleteword的

12、值開(kāi)頭的所有單詞，按升序排列，并將他們輸出到deletejlist列表框12）public void deletejlist_mouseclicked(mouseevent me) 當(dāng)在deletejlist列表框單擊選項(xiàng)時(shí)，讀取選項(xiàng)值賦給deleteword變量，并去掉其兩端空格，向inputdeleteword輸入框輸入deleteword變量值，接著從數(shù)據(jù)庫(kù)讀取要?jiǎng)h除的單詞的信息，如某屬性不為空，將其輸入到eletewordchinese多行文本框13）public void deleteokbutton_actionperformed(actionevent e) 單擊刪除按鈕，如果輸

13、入框?yàn)榭?，則彈出提示框，否則從數(shù)據(jù)庫(kù)中刪除要?jiǎng)h除的單詞的所有記錄14）public void deletecancelbutton_actionperformed(actionevent e) 單擊取消按鈕，inputdeleteword、deletewordchinese都被清空15）public void scanbutton_actionperformed(actionevent e) 單擊瀏覽按鈕，scanwordjlist列表框被清空，然后從數(shù)據(jù)庫(kù)讀取所有單詞，按升序排列；然后將所得結(jié)果集輸入到scanwordjlist列表框16）public void scanwordjlist_

14、mouseclicked(mouseevent me) 當(dāng)鼠標(biāo)單擊scanwordjlist列表框時(shí)，取所選選項(xiàng)的值賦給變量ndexword，去掉其兩端空格，scanoutput文本框被清空，發(fā)音按鈕變成灰白色，從數(shù)據(jù)庫(kù)讀取要查找的單詞（indexword的值），將其音標(biāo)進(jìn)行還原，將單詞信息輸出到scanoutput文本框，如果可以發(fā)音，發(fā)音按鈕變紅色，否則indexword被賦給空值17）public void soundbutton_actionperformed(actionevent e) 如果查找單詞有音頻且查找詞不為空，則可發(fā)音，否則按鈕變?yōu)榛野咨⒊绦蚰K流程圖開(kāi)始英漢互譯是否

15、輸入？是否是英文查找英文查找漢譯列出找到的單詞單擊？列出單詞信息清空列表框和多行文本框是否找到顯錯(cuò)錯(cuò)誤添加詞匯輸入單詞？是否合法彈出提示信息是否選擇備選音標(biāo)寫(xiě)入音標(biāo)輸入框單擊添加按鈕輸入單詞？彈出警告成功？顯示錯(cuò)誤提示成功單擊取消按鈕清空所有輸入框是否已存在保存所有信息不能添加可否發(fā)音結(jié)束發(fā)音按鈕變紅結(jié)束ynyynyynnynyyyny單擊發(fā)音刪除詞匯輸入？模糊查找是否匹配列出找到的單詞單擊選擇？列出單詞信息并把單詞寫(xiě)入輸入框點(diǎn)擊刪除按鈕是否有單詞彈出提示信息刪除該單詞點(diǎn)擊取消按鈕清空各框內(nèi)內(nèi)容瀏覽詞庫(kù)按升序列出詞庫(kù)單詞是否被單擊列出單詞信息可否發(fā)音發(fā)音按鈕變紅單擊瀏覽按鈕發(fā)音按鈕是否紅結(jié)束結(jié)

16、束ynynyynnyyny單擊發(fā)音四、具體程序設(shè)計(jì)代碼package languanhengdictionary;import java.awt.borderlayout;import java.sql.*;import java.io.file;import java.io.ioexception;import javax.sound.sampled.audiosystem;import javax.sound.sampled.lineunavailableexception;import javax.sound.sampled.unsupportedaudiofileexception;i

17、mport javax.sound.sampled.audioinputstream;import javax.sound.sampled.audioformat;import javax.sound.sampled.sourcedataline;import javax.sound.sampled.dataline;import javax.swing.jframe;import javax.swing.jtabbedpane;import java.awt.rectangle;import javax.swing.jpanel;import javax.swing.jlabel;impor

18、t java.awt.font;import java.awt.color;import javax.swing.jtextfield;import javax.swing.jbutton;import java.awt.event.actionevent;import java.awt.event.actionlistener;import javax.swing.jtextarea;import java.awt.textarea;import java.awt.dimension;import java.awt.choice;import java.awt.event.itemevent

19、;import java.awt.event.itemlistener;import java.awt.checkbox;import javax.swing.jcombobox;import javax.swing.jlist;import javax.swing.joptionpane;import java.awt.*;import javax.swing.jscrollpane;import java.awt.event.mouseadapter;import java.awt.event.mouseevent;import javax.swing.defaultlistmodel;i

20、mport java.awt.event.hierarchylistener;import java.awt.event.hierarchyevent;import javax.swing.event.caretlistener;import javax.swing.event.caretevent;import javax.swing.border.titledborder;import javax.swing.uimanager;import javax.swing.borderfactory;import java.io.*;import javax.swing.border.borde

21、r;public class englishframe extends jframe connection connection = null; statement statement = null; resultset result = null; public englishframe() try jbinit(); catch (exception exception) exception.printstacktrace(); private void jbinit() throws exception getcontentpane().setlayout(null); mainjp.s

22、etfont(new java.awt.font("宋體", font.plain, 25); mainjp.setforeground(new color(0, 242, 118); mainjp.setborder(titledborder1); mainjp.settooltiptext(""); mainjp.setbounds(new rectangle(2, 51, 543, 295); searchenglishorchinesejp.setlayout(null); addwordjp.setlayout(null); deletejp.

23、setlayout(null); scanstock.setlayout(null); jlabel2.setfont(new java.awt.font("宋體", font.plain, 20); jlabel2.setforeground(new color(0, 180, 62); jlabel2.settext("輸入引擎詞"); jlabel2.setbounds(new rectangle(8, 16, 106, 43); inputsearchword.setfont(new java.awt.font("宋體", f

24、ont.plain, 20); jscrollpane1.setbounds(new rectangle(118, 60, 145, 178); listsearchenglish.setfont(new java.awt.font("宋體", font.plain, 20); listsearchenglish.setforeground(color.blue); listsearchenglish.setselectionbackground(new color(51, 255, 104); outputsearchenglish.setfont(new java.aw

25、t.font("宋體", font.plain, 20); outputsearchenglish.setbounds(new rectangle(267, 59, 227, 179); jlabel4.setfont(new java.awt.font("宋體", font.plain, 25); jlabel4.setforeground(new color(0, 180, 0); jlabel4.settext("新單詞"); jlabel4.setbounds(new rectangle(6, 9, 81, 34); inpu

26、tnewword.setfont(new java.awt.font("宋體", font.plain, 20); inputnewword.setbounds(new rectangle(93, 11, 155, 34); jlabel5.setfont(new java.awt.font("宋體", font.plain, 25); jlabel5.setforeground(new color(0, 159, 14); jlabel5.settext("發(fā) 音"); jlabel5.setbounds(new rectangle

27、(6, 118, 76, 33); jlabel6.setfont(new java.awt.font("宋體", font.plain, 25); jlabel6.setforeground(new color(0, 173, 55); jlabel6.settext("詞 性"); jlabel6.setbounds(new rectangle(7, 63, 81, 35); pronunciation.setfont(new java.awt.font("arial unicode ms", font.plain,20); pr

28、onunciation.setbounds(new rectangle(92, 119, 154, 36); newwordclass.setbounds(new rectangle(95, 62, 154, 36); jscrollpane3.setbounds(new rectangle(93, 156, 154, 79); jlabel7.setfont(new java.awt.font("宋體", font.plain, 25); jlabel7.setforeground(new color(0, 208, 48); jlabel7.settext("

29、注 釋"); jlabel7.setbounds(new rectangle(267, 9, 72, 34); newwordchinese.setfont(new java.awt.font("宋體", font.plain, 20); newwordchinese.setbounds(new rectangle(354, 11, 164, 34); jlabel8.setfont(new java.awt.font("宋體", font.plain, 25); jlabel8.setforeground(new color(0, 187,

30、0); jlabel8.settooltiptext(""); jlabel8.settext("過(guò)去式"); jlabel8.setbounds(new rectangle(264, 62, 77, 32); newwordpreterite.setfont(new java.awt.font("宋體", font.plain, 20); newwordpreterite.setbounds(new rectangle(353, 61, 164, 36); jlabel9.setfont(new java.awt.font(&quo

31、t;宋體", font.plain, 25); jlabel9.setforeground(new color(0, 187, 21); jlabel9.settext("現(xiàn)代式"); jlabel9.setbounds(new rectangle(263, 122, 75, 31); newwordmodernism.setfont(new java.awt.font("宋體", font.plain, 20); newwordmodernism.setbounds(new rectangle(353, 121, 163, 37); addo

32、kjbutton.setbounds(new rectangle(261, 179, 83, 40); addokjbutton.setfont(new java.awt.font("宋體", font.plain, 20); addokjbutton.settext("確定"); addcancelbutton.setbounds(new rectangle(407, 182, 83, 37); addcancelbutton.setfont(new java.awt.font("宋體", font.plain, 20); addc

33、ancelbutton.settext("取消"); jlabel10.setfont(new java.awt.font("宋體", font.plain, 25); jlabel10.setforeground(new color(0, 187, 62); jlabel10.settext("輸入詞匯"); jlabel10.setbounds(new rectangle(6, 33, 107, 34); inputdeleteword.setfont(new java.awt.font("宋體", font.

34、plain, 20); inputdeleteword.setbounds(new rectangle(112, 31, 186, 37); deletewordchinese.setfont(new java.awt.font("宋體", font.plain, 20); deletewordchinese.setbounds(new rectangle(112, 69, 185, 168); jscrollpane4.setbounds(new rectangle(297, 31, 139, 206); deletejlist.setfont(new java.awt.

35、font("宋體", font.plain, 20); deletejlist.setforeground(color.blue); deletejlist.setselectionbackground(new color(51, 255, 0); deleteokbutton.setbounds(new rectangle(437, 31, 83, 38); deleteokbutton.setfont(new java.awt.font("楷體", font.plain, 20); deleteokbutton.setforeground(new c

36、olor(0, 187, 55); deleteokbutton.settext("刪除"); scanbutton.setforeground(new color(0, 214, 0); scanbutton.settext("瀏覽"); jscrollpane5.setbounds(new rectangle(25, 59, 146, 178); scanoutput.setcolumns(5); scanoutput.setfont(new java.awt.font("宋體", font.plain, 20); scanout

37、put.setbounds(new rectangle(188, 60, 315, 177); scanwordjlist.setfont(new java.awt.font("宋體", font.plain, 20); scanwordjlist.setforeground(color.blue); scanwordjlist.setselectionbackground(color.green); jlabel11.setfont(new java.awt.font("楷體", font.plain, 45); jlabel11.setforegro

38、und(new color(0, 255, 138); jlabel11.settext("歡迎訪(fǎng)問(wèn)詞庫(kù)"); jlabel11.setbounds(new rectangle(197, 8, 287, 40); deletecancelbutton.setbounds(new rectangle(437, 96, 83, 34); deletecancelbutton.setfont(new java.awt.font("楷體", font.plain, 20); deletecancelbutton.setforeground(new color(0

39、, 221, 42); deletecancelbutton.settooltiptext(""); deletecancelbutton.settext("取消"); pronunciationjlist.setselectionbackground(new color(51, 255, 125); sound.setbounds(new rectangle(420, 24, 74, 33); sound.setfont(new java.awt.font("宋體", font.plain, 20); sound.settoolti

40、ptext(""); sound.settext("發(fā)音"); inputsearchword.setbounds(new rectangle(117, 24, 302, 35); scanbutton.setbackground(new color(240, 240, 240); scanbutton.setfont(new java.awt.font("宋體", font.plain, 20); scansoundbutton.setbounds(new rectangle(110, 15, 79, 37); scansoundb

41、utton.setfont(new java.awt.font("宋體", font.plain, 20); scansoundbutton.settext("發(fā)音"); scanbutton.setbounds(new rectangle(27, 14, 78, 38); this.getcontentpane().add(mainjp); searchenglishorchinesejp.add(jlabel2); searchenglishorchinesejp.add(jscrollpane1); searchenglishorchinesejp

42、.add(outputsearchenglish); searchenglishorchinesejp.add(inputsearchword); searchenglishorchinesejp.add(sound); jscrollpane1.getviewport().add(listsearchenglish); mainjp.add(searchenglishorchinesejp, "英漢互譯"); mainjp.add(addwordjp, "添加詞匯"); addwordjp.add(jlabel4); addwordjp.add(inp

43、utnewword); addwordjp.add(jlabel7); addwordjp.add(newwordchinese); addwordjp.add(newwordclass); addwordjp.add(jlabel6); addwordjp.add(newwordpreterite); addwordjp.add(jlabel5); addwordjp.add(jlabel9); addwordjp.add(newwordmodernism); addwordjp.add(jscrollpane3); addwordjp.add(pronunciation); addword

44、jp.add(addokjbutton); addwordjp.add(addcancelbutton); addwordjp.add(jlabel8); jscrollpane3.getviewport().add(pronunciationjlist); mainjp.add(deletejp, "刪除詞匯"); deletejp.add(jlabel10); deletejp.add(inputdeleteword); deletejp.add(deletewordchinese); deletejp.add(jscrollpane4); deletejp.add(d

45、eleteokbutton); deletejp.add(deletecancelbutton); jscrollpane4.getviewport().add(deletejlist); mainjp.add(scanstock, "瀏覽詞庫(kù)"); scanstock.add(jscrollpane5); jscrollpane5.getviewport().add(scanwordjlist); scanstock.add(scanbutton); scanstock.add(scanoutput); scanstock.add(jlabel11); scanstock

46、.add(scansoundbutton); this.getcontentpane().add(jlabel1); jlabel1.setfont(new java.awt.font("楷體", font.plain, 45); jlabel1.setforeground(color.blue); jlabel1.settext("藍(lán)氏簡(jiǎn)易英漢詞典"); jlabel1.setbounds(new rectangle(107, 5, 374, 47); newwordclass.additem("n. 名詞"); newwordcl

47、ass.additem("adj. 形容詞"); newwordclass.additem("adv. 副詞"); newwordclass.additem("num. 量詞"); newwordclass.additem("v. 動(dòng)詞"); newwordclass.additem("vi. 不及物動(dòng)詞"); newwordclass.additem("vt. 及物動(dòng)詞"); newwordclass.additem("短語(yǔ)"); pronunciati

48、onjlist.setlayoutorientation(pronunciationjlist.horizontal_wrap); this.setsize(new dimension(560, 385); /第一個(gè)參/為長(zhǎng)度，第二個(gè)參數(shù)為高度/-英漢互譯模塊函數(shù)調(diào)用-/ /發(fā)音按鈕監(jiān)聽(tīng)器 sound.addactionlistener(new actionlistener() public void actionperformed(actionevent e) sound_actionperformed(e); ); /查找輸入框監(jiān)聽(tīng)器 inputsearchword.addcaretlis

49、tener(new caretlistener() public void caretupdate(caretevent e) inputsearch_caretupdate(e); ); /查找單詞列表監(jiān)聽(tīng)器 listsearchenglish.addmouselistener(new mouseadapter() public void mouseclicked(mouseevent e) listsearchenglish_mouseclicked(e); );/-添加面板模塊函數(shù)調(diào)-/ /新單詞輸入框監(jiān)聽(tīng)器 inputnewword.addcaretlistener(new caret

50、listener() public void caretupdate(caretevent e) inputnewword_caretupdate(e); ); /新單詞音標(biāo)輸入框監(jiān)聽(tīng)器 pronunciation.addcaretlistener(new caretlistener() public void caretupdate(caretevent e) pronunciation_caretupdate(e); ); /音標(biāo)選擇列表鼠標(biāo)監(jiān)聽(tīng)器 pronunciationjlist.addmouselistener(new mouseadapter() public void mous

51、eclicked(mouseevent e) pronunciationjlist_mouseclicked(e); ); /添加按鈕監(jiān)聽(tīng)器 addokjbutton.addactionlistener(new actionlistener() public void actionperformed(actionevent e) addokjbutton_actionperformed(e); ); / 取消添加單詞按鈕監(jiān)聽(tīng)器 addcancelbutton.addactionlistener(new actionlistener() public void actionperformed(a

52、ctionevent e) addcancelbutton_actionperformed(e); ); /-刪除模塊函數(shù)調(diào)用-/ /刪除單詞輸入框監(jiān)聽(tīng)器 inputdeleteword.addcaretlistener(new caretlistener() public void caretupdate(caretevent e) inputdeleteword_caretupdate(e); ); /刪除單詞列表框鼠標(biāo)監(jiān)聽(tīng)器 deletejlist.addmouselistener(new mouseadapter() public void mouseclicked(mouseeven

53、t e) deletejlist_mouseclicked(e); ); /刪除按鈕監(jiān)聽(tīng)器 deleteokbutton.addactionlistener(new actionlistener() public void actionperformed(actionevent e) deleteokbutton_actionperformed(e); ); /取消刪除按鈕監(jiān)聽(tīng)器 deletecancelbutton.addactionlistener(new actionlistener() public void actionperformed(actionevent e) deletecancelbut