面向?qū)ο蟪绦蛟O(shè)計(jì)A（Java）實(shí)驗(yàn)報(bào)告實(shí)驗(yàn)名稱：GUI實(shí)驗(yàn)實(shí)驗(yàn)類型：設(shè)計(jì)型指導(dǎo)教師：X涌專業(yè)班級(jí)：信安1205XX：X追學(xué)號(hào)：5120155364實(shí)驗(yàn)地點(diǎn)：東六E501實(shí)驗(yàn)成績(jī)：日期：2016年11月12日實(shí)驗(yàn)四GUI實(shí)驗(yàn)一、實(shí)驗(yàn)?zāi)康木毩?xí)Java圖形用戶界面設(shè)計(jì)、界面布局、事件設(shè)計(jì)方法，熟悉GUI程序設(shè)計(jì)的基本技術(shù)、基本W(wǎng)idget的使用、GUI設(shè)計(jì)用戶接口的方法二、實(shí)驗(yàn)內(nèi)容設(shè)計(jì)一個(gè)類似Windows計(jì)算器的Application應(yīng)用程序三、實(shí)驗(yàn)設(shè)計(jì)、采用JavaApplication方式建立應(yīng)用程序Calculator的框架2、仿照Windows計(jì)算器，實(shí)現(xiàn)界面設(shè)計(jì)。將contentPane分成兩個(gè)jPanel(borderlayout)，其中一個(gè)放置文本框，另一個(gè)繼續(xù)劃分為兩部分，分別以FlowLayout和GridLayout的形式放置按鈕。設(shè)置按鈕、文本框等的Text值及相應(yīng)屬性的修改。、設(shè)計(jì)方法：設(shè)兩個(gè)變量value1、value2分別存儲(chǔ)運(yùn)算符左右兩個(gè)操作數(shù)，設(shè)置標(biāo)識(shí)符flag,初值為0value1，當(dāng)按下時(shí)設(shè)置flag為1字傳給value2；按下”=”時(shí)，根據(jù)value1，value2及op值進(jìn)行計(jì)算并輸出至文本框、設(shè)計(jì)方法調(diào)節(jié)程序bug、點(diǎn)擊事先設(shè)計(jì)的計(jì)算器數(shù)字按鈕，顯示框出現(xiàn)相應(yīng)數(shù)字；點(diǎn)擊“+-*/”時(shí)，顯示框出現(xiàn)相應(yīng)字符；輸入計(jì)算式后再輸入“基本實(shí)現(xiàn)Windows計(jì)算器功能四、實(shí)驗(yàn)過程、采用JavaApplication方式建立應(yīng)用程序框架、仿照Windows計(jì)算器，利用多種布局方式實(shí)現(xiàn)界面設(shè)計(jì)、組裝操作數(shù)和運(yùn)算符，完成簡(jiǎn)單的整數(shù)加、減、乘、除運(yùn)算、通過getTxt（）方法來獲得顯示框txt內(nèi)容，setTxt（）方法把字符顯示在Txt框內(nèi)；通過Integer.parseInt（String）實(shí)現(xiàn)字符串到整型的轉(zhuǎn)換，String.valueOf(Int）實(shí)現(xiàn)整型到字符串的轉(zhuǎn)換。5、遇到的問題：顯示txt框無法顯示兩位及以上的數(shù)字。解決方法：txt.setTxt(String.valueOf(num*10+btnNum))*10且將整型數(shù)字轉(zhuǎn)化為字符串。五、實(shí)驗(yàn)結(jié)果運(yùn)行程序可得到一與Windows計(jì)算器界面類似（形式由自己設(shè)定的計(jì)算器，可實(shí)現(xiàn)加、減、乘、除簡(jiǎn)單數(shù)學(xué)運(yùn)算。六、討論與分析1.通過這次實(shí)驗(yàn)懂得了GUI的基本設(shè)計(jì)過程和其實(shí)現(xiàn)2.對(duì)java的圖形用戶界面設(shè)計(jì)、事件設(shè)計(jì)方法有了進(jìn)一步的了解3.學(xué)會(huì)了制作簡(jiǎn)單的計(jì)算器七、附錄：關(guān)鍵代碼（給出適當(dāng)注釋，可讀性高）publicclassCalculatorextendsjavax.swing.JFrame{publicCalculator(){initComponents();}privatevoidinitComponents(){//設(shè)置主面板按鈕menuBar=newjavax.swing.JMenuBar();fileMenu=newjavax.swing.JMenu();openMenuItem=newjavax.swing.JMenuItem();saveMenuItem=newjavax.swing.JMenuItem();saveAsMenuItem=newjavax.swing.JMenuItem();exitMenuItem=newjavax.swing.JMenuItem();helpMenu=newjavax.swing.JMenu();contentsMenuItem=newjavax.swing.JMenuItem();aboutMenuItem=newjavax.swing.JMenuItem();editMenu=newjavax.swing.JMenu();cutMenuItem=newjavax.swing.JMenuItem();copyMenuItem=newjavax.swing.JMenuItem();pasteMenuItem=newjavax.swing.JMenuItem();deleteMenuItem=newjavax.swing.JMenuItem();jLabel1.setText("jLabel1");utton1.setText("utton1");jCheckBox1.setText("jCheckBox1");utton2.setText("utton2");javax.swing.GroupLayoutjPanel1Layout=newjavax.swing.GroupLayout(jPanel1);jPanel1.setLayout(jPanel1Layout);jPanel1Layout.setHorizontalGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGap(0,100,Short.MAX_VALUE));jPanel1Layout.setVerticalGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGap(0,100,Short.MAX_VALUE));jCheckBox2.setText("jCheckBox2");jCheckBox2.addActionListener(newjava.awt.event.ActionListener(){publicvoidactionPerformed(java.awt.event.ActionEventevt){jCheckBox2ActionPerformed(evt);}});setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);setCursor(newjava.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));txtText.setFont(newjava.awt.Font("微軟雅黑",0,24));txtText.setHorizontalAlignment(javax.swing.JTextField.RIGHT);txtText.setText("0");txtText.setAutoscrolls(false);txtText.addActionListener(newjava.awt.event.ActionListener(){publicvoidactionPerformed(java.awt.event.ActionEventevt){}});fileMenu.setText("\u67e5\u770b");openMenuItem.setText("Open");fileMenu.add(openMenuItem);saveMenuItem.setText("Save");fileMenu.add(saveMenuItem);saveAsMenuItem.setText("SaveAs...");fileMenu.add(saveAsMenuItem);exitMenuItem.setText("Exit");exitMenuItem.addActionListener(newjava.awt.event.ActionListener(){publicvoidactionPerformed(java.awt.event.ActionEventevt){exitMenuItemActionPerformed(evt);}});fileMenu.add(exitMenuItem);menuBar.add(fileMenu);helpMenu.setText("Help");contentsMenuItem.setText("Contents");helpMenu.add(contentsMenuItem);aboutMenuItem.setText("About");helpMenu.add(aboutMenuItem);editMenu.setText("Edit");cutMenuItem.setText("Cut");editMenu.add(cutMenuItem);copyMenuItem.setText("Copy");editMenu.add(copyMenuItem);pasteMenuItem.setText("Paste");editMenu.add(pasteMenuItem);deleteMenuItem.setText("Delete");editMenu.add(deleteMenuItem);helpMenu.add(editMenu);menuBar.add(helpMenu);setJMenuBar(menuBar);javax.swing.GroupLayoutlayout=newjavax.swing.GroupLayout(getContentPane());getContentPane().setLayout(layout);layout.setHorizontalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGroup(layout.createSequentialGroup().addContainerGap().addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING,false).addGroup(layout.createSequentialGroup().addComponent(.addGap(21,21,21)));layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGroup(layout.createSequentialGroup().addGap(26,26,26).addComponent(txtText,javax.swing.GroupLayout.PREFERRED_SIZE,64,javax.swing.GroupLayout.PREFERRED_SIZE).addGap(18,18,18).addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE).addComponent(//其他按鍵功能設(shè)置已省略u(píng)tton26,javax.swing.GroupLayout.PREFERRED_SIZE,38,javax.swing.GroupLayout.PREFERRED_SIZE).addComponent(utton32,javax.swing.GroupLayout.PREFERRED_SIZE,83,javax.swing.GroupLayout.PREFERRED_SIZE)).addContainerGap(60,Short.MAX_VALUE)));pack();}booleanisOperPressed=false;//為true時(shí)輸入下一個(gè)數(shù)字時(shí)清屏intoper=0;//1實(shí)現(xiàn)加，2實(shí)現(xiàn)減，3實(shí)現(xiàn)乘，4實(shí)現(xiàn)除，5實(shí)現(xiàn)取余intnumber1=0;//參與運(yùn)算的第一個(gè)數(shù)字，保存在number1中privatevoidutton8ActionPerformed(java.awt.event.ActionEventevt){//←按鍵，實(shí)現(xiàn)回退功能Strings=txtText.getText();//獲取屏幕上的字符串intnum=Integer.parseInt(s);//轉(zhuǎn)換為整形num=num/10;s=Integer.toString(num);//轉(zhuǎn)換為字符型txtText.setText(s);//顯示到屏幕上}privatevoidutton9ActionPerformed(java.awt.event.ActionEventevt){//C按鍵，實(shí)現(xiàn)清屏功能txtText.setText("0");}privatevoidutton10ActionPerformed(java.awt.event.ActionEventevt){//CE按鍵，實(shí)現(xiàn)初始化功能txtText.setText("0");isOperPressed=false;oper=0;number1=0;}privatevoidutton17ActionPerformed(java.awt.event.ActionEventevt){//取余if(oper!=0){//ifelse語(yǔ)句實(shí)現(xiàn)連運(yùn)算下同dengyu();oper=5;}else{Strings=txtText.getText();number1=Integer.parseInt(s);//保存屏幕上的數(shù)字oper=5;isOperPressed=true;//清屏}}privatevoidutton16ActionPerformed(java.awt.event.ActionEventevt){//除if(oper!=0){dengyu();oper=4;}else{Strings=txtText.getText();number1=Integer.parseInt(s);oper=4;isOperPressed=true;}}privatevoidutton21ActionPerformed(java.awt.event.ActionEventevt){//乘if(oper!=0){dengyu();oper=3;}else{Strings=txtText.getText();number1=Integer.parseInt(s);oper=3;isOperPressed=true;}}privatevoidutton26ActionPerformed(java.awt.event.ActionEventevt){//減if(oper!=0){dengyu();oper=2;}else{Strings=txtText.getText();number1=Integer.parseInt(s);oper=2;isOperPressed=true;}}privatevoidutton31ActionPerformed(java.awt.event.ActionEventevt){//加if(oper!=0){dengyu();oper=1;}else{Strings=txtText.getText();number1=Integer.parseInt(s);oper=1;isOperPressed=true;}}privatevoidutton32ActionPerformed(java.awt.event.ActionEventevt){//=dengyu();}publicvoiddengyu()//等于方法,在屏幕上顯示出計(jì)算結(jié)果{intnumber2;Strings;isOperPressed=true;switch(oper){case0:break;case1:number2=Integer.parseInt(txtText.getText());number1=number1+number2;s=Integer.toString(number1);txtText.setText(s);//顯示到屏幕上，其他數(shù)字輸出顯示方式同oper=0;break;}}privatevoidutton15ActionPerformed(java.awt.event.ActionEventevt){//數(shù)字9按鍵if(!isOperPressed){//原來的數(shù)*10再加上按上去的數(shù)顯示到屏幕上Strings=txtText.getText();intnum=Integer.parseInt(s);num=num*10+9;s=Integer.toString(num);txtText.setText(s);}else{//點(diǎn)擊清屏并顯示點(diǎn)擊的數(shù)字txtText.setText("9");isOperPressed=false;}}privatevoidutton14ActionPerformed(java.awt.event.ActionEventevt){if(!isOperPressed){Strings=txtText.getText();intnum=Integer.parseInt(s);num=num*10+8;s=Integer.toString(num);txtText.setText(s);}else{txtText.setText("8");isOperPressed=false;}}privatevoidutton13ActionPerformed(java.awt.event.ActionEventevt){if(!isOperPressed){Strings=txtText.getText();intnum=Integer.parseInt(s);num=num*10+7;s=Integer.toString(num);txtText.setText(s);}else{txtText.setText("7");isOperPressed=false;}}privatevoidutton20ActionPerformed(java.awt.event.ActionEventevt){if(!isOperPressed){Strings=txtText.getText();intnum=Integer.parseInt(s);num=num*10+6;s=Integer.toString(num);txtText.setText(s);}else{txtText.setText("6");isOperPressed=false;}}privatevoidutton19ActionPerformed(java.awt.event.ActionEventevt){if(!isOperPressed){Strings=txtText.getText();intnum=Integer.parseInt(s);num=num*10+5;s=Integer.toString(num);txtText.setText(s);}else{txtText.setText("5");isOperPressed=false;}}privatevoidutton18ActionPerformed(java.awt.event.ActionEventevt){if(!isOperPressed){Strings=txtText.getText();intnum=Integer.parseInt(s);num=num*10+4;s=Integer.toString(num);txtText.setText(s);}else{txtText.setText("4");isOperPressed=false;}}privatevoidutton25ActionPerformed(java.awt.event.ActionEventevt){if(!isOperPressed){Strings=txtText.getText();intnum=Integer.parseInt(s);num=num*10+3;s=Integer.toString(num);txtText.setText(s);}else{txtText.setText("3");isOperPressed=false;}}privatevoidutton24ActionPerformed(java.awt.event.ActionEventevt){if(!isOperPressed){Strings=txtText.getText();intnum