Java實驗三實驗報告異常處理

Java上機實驗報告（實驗三：異常處理）專業(yè)：08計算機班級：（班學號：08251姓名：實驗目的：掌握定義、拋出和捕捉處理異常。實驗內容：編寫一個類實現銀行帳戶的概念，包括的屬性有“帳號”、“儲戶姓名”、“地址”、“存款余額”、“最小余額”、“利率”、“存款日期”，包括的方法有“存款”、“取款”、“查詢”、“計算利息”、“累加利息”等。擴充上題，創(chuàng)建“取款數目超過余額”這個異常，并在取款方法中拋出并處理這個異常。實驗源代碼：1.Bank.java文件classMyExceptionextendsException{//自定義異常類Stringmessage;publicMyException(){ message="取款數目超過余額,請重新輸入取款金額!";//System.out.println("請重新輸入取款金額！");//Bankbank=newBank();//bank.drawMoney(100000.0);}publicStringtoString(){ returnmessage;}}publicclassBank{ intID; Stringname; Stringaddress; doublebalance; doublemin_balance; doublerate;doubleinterest; publicintgetID(){//獲取賬戶 returnID; } publicvoidsetID(intiD){//設置賬戶 ID=iD; } publicStringgetName(){//獲取儲戶名 returnname; } publicvoidsetName(Stringname){//設置儲戶名 =name; } publicStringgetAddress(){//獲取儲戶地址 returnaddress; } publicvoidsetAddress(Stringaddress){//設置儲戶地址 this.address=address; } publicdoublegetBalance(){//獲取余額 returnbalance; } publicvoidsetBalance(doublebalance){//設置余額 this.balance=balance; } publicdoublegetMin_balance(){//獲取最小余額 returnmin_balance; } publicvoidsetMin_balance(doubleminBalance){//設置最小余額 min_balance=minBalance; } publicdoublegetRate(){//獲取利率 returnrate; } publicvoidsetRate(doublerate){//設置利率 this.rate=rate; } publicvoidsavingMoney(doublemoney){//存款 this.balance=this.balance+money; } publicvoiddrawMoney(doublemoney)throwsMyException{//取款，發(fā)現異常時拋出異常并處理if(money>this.balance){throw(newMyException());}elsethis.balance=this.balance-money; }publicdoubleInterest(doubleinterest){//計算利息interest=getRate()*getBalance();erest=interest;returninterest;}publicdoubleaddInterest(doublemoney){//累加利息money=this.balance+erest;returnmoney;}publicvoidcheck(){intid;StringName;StringAdd;doubleBalance;id=getID();Name=getName();Add=getAddress();Balance=getBalance();System.out.println("賬號:"+id);System.out.println("姓名:"+Name);System.out.println("地址:"+Add);System.out.println("賬戶余額:"+Balance+"元");}}2.Bank_check.java文件importjava.util.*;publicclassBank_check{publicstaticvoidmain(String[]args){Bankb=newBank();b.setID(123456);b.setName("laidazhang");b.setAddress("華僑大學");b.setBalance(100000000.0);b.check();System.out.println("-----------------存款操作：-------------------=");System.out.println("輸入存款金額：");doublex,y,z;Scannerreader=newScanner(System.in); x=reader.nextDouble();System.out.println("存款后:");b.savingMoney(x);b.check();System.out.println("-----------------取款操作：-------------------=");System.out.println("輸入取款金額：");Scannerreader1=newScanner(System.in); y=reader1.nextDouble();System.out.println("取款后:");try{ b.drawMoney(y);}catch(MyExceptione)//捕捉異常{ System.out.println(e.toString());}finally{ Scannerreader2=newScanner(System.in); z=reader2.nextDouble(); try{ b.drawMoney(z);}catch(MyExceptione){ System.out.println(e.toString());} b.check();b.setRate(0