Java實(shí)驗(yàn)報(bào)告十二

《Java語(yǔ)言程序設(shè)計(jì)》實(shí)驗(yàn)報(bào)告十二學(xué)生姓名：郭倩班級(jí)：信息112學(xué)號(hào)：201152275208實(shí)驗(yàn)地點(diǎn)：經(jīng)濟(jì)管理中心證券模擬實(shí)驗(yàn)室指導(dǎo)教師：趙利平實(shí)驗(yàn)日期：2012.05.29實(shí)驗(yàn)環(huán)境：Windows2000+JDK1.6實(shí)驗(yàn)?zāi)康木毩?xí)事件處理機(jī)制；實(shí)驗(yàn)內(nèi)容：異常處理P153練習(xí)1；P154練習(xí)2；實(shí)驗(yàn)過(guò)程報(bào)告撰寫具體要求：上述實(shí)驗(yàn)內(nèi)容要求寫出源代碼及運(yùn)行結(jié)果。實(shí)驗(yàn)內(nèi)容（1）：//程序代碼//DivideByZero.javapublicclassDivideByZero{privateintdenominator,numerator,quotient;publicDivideByZero(){denominator=3;numerator=12;quotient=quotient(numerator,denominator);System.out.print("Quotientis"+quotient);}publicintquotient(intnumerator,intdenominator){returnnumerator/denominator;}publicstaticvoidmain(Stringargs[]){DivideByZeroapplication=newDivideByZero();}}運(yùn)行結(jié)果：Quotientis4.12/7:Quotientis1.發(fā)生異常運(yùn)行出錯(cuò)Exceptioninthread"main"java.lang.ArithmeticException:/byzero atExercise.DivideByzero.quotient(DivideByzero.java:15) atExercise.DivideByzero.<init>(DivideByzero.java:9) atExercise.DivideByzero.main(DivideByzero.java:19)（4）加入try/catch語(yǔ)句塊后，denominator值為0時(shí)，運(yùn)行結(jié)果為：Ifoundexceptionjava.lang.ArithmeticException:/byzero實(shí)驗(yàn)內(nèi)容(2)//程序代碼//DivideByZeroGUI.javaimportjava.awt.*;//Container,GridLayoutimportjava.awt.event.*;//ActionListenerimportjavax.swing.*;//JFramepublicclassDivideByZeroGUIextendsJFrameimplementsActionListener{privateJTextFieldnumeratorField,denominatorField,outputField;privateintdenominator,numerator,quotient;publicDivideByZeroGUI(){super("除數(shù)為0異常");Containercontainer=getContentPane();container.setLayout(newGridLayout(3,2));container.add(newJLabel("輸入被除數(shù)",SwingConstants.RIGHT));numeratorField=newJTextField(10);container.add(numeratorField);container.add(newJLabel("輸入除數(shù)并回車",SwingConstants.RIGHT));denominatorField=newJTextField(10);container.add(denominatorField);denominatorField.addActionListener(this);container.add(newJLabel("結(jié)果",SwingConstants.RIGHT));outputField=newJTextField();container.add(outputField);setSize(425,100);setVisible(true);}publicvoidactionPerformed(ActionEventevent){outputField.setText("");numerator=Integer.parseInt(numeratorField.getText());denominator=Integer.parseInt(denominatorField.getText());quotient=quotient(numerator,denominator);outputField.setText(Integer.toString(quotient));}publicintquotient(intnumerator,intdenominator){returnnumerator/denominator;}publicstaticvoidmain(Stringargs[]){DivideByZeroGUIapplication=newDivideByZeroGUI();application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);}}程序運(yùn)行結(jié)果如下圖所示:（2）沒(méi)有異常（3）是異常12/a:122161169174184269599446024782099450267685599071218504460209946302041604428142886285116338207054925249944948原因：除數(shù)為0；除數(shù)為數(shù)值格式；（4）加入NumberFormatException異常處理塊后運(yùn)行結(jié)果為：12/0:Ifoundexceptionjava.lang.ArithmeticException:/byzero12/1.5:IdetectedExceptionjava.lang.NumberFormatExcep