建设一个网站得多少钱,网站的建设与管理系统,孵化器网站建设方案,合肥网络推广有限公司建立exception包#xff0c;建立Bank类#xff0c;类中有变量double balance表示存款,Bank类的构造方法能增加存款#xff0c;Bank类中有取款的发方法withDrawal(double dAmount),当取款的数额大于存款时,抛出InsufficientFundsException,取款数额为负数#xff0c;抛出Nag…建立exception包建立Bank类类中有变量double balance表示存款,Bank类的构造方法能增加存款Bank类中有取款的发方法withDrawal(double dAmount),当取款的数额大于存款时,抛出InsufficientFundsException,取款数额为负数抛出NagativeFundsException,如new Bank(100),表示存入银行100元当用方法withdrawal(150)withdrawal(-15)时会抛出自定义异常。 package exception;public class Bank {double balance;public Bank(double balance){}public void withDrawal(double dAmount) throws Exception{if(dAmountbalance){throw new InsufficientFundsException();}if(dAmount0){throw new NagativeFundsException();}balance balance-dAmount;}} package exception;public class InsufficientFundsException extends Exception {Overridepublic String getMessage() {// TODO 自动生成的方法存根return 余额不足;}} package exception;public class NagativeFundsException extends Exception {Overridepublic String getMessage() {// TODO 自动生成的方法存根return 取款数不能为负数;}} package exception;public class Test1 {public static void main(String[] args) {// TODO 自动生成的方法存根
Bank bnew Bank(100);try{ b.withDrawal(150);}catch (Exception e){System.out.println(e.getMessage());}try{b.withDrawal(-15);}catch(Exception e){System.out.println(e.getMessage()) ;}}} 转载于:https://www.cnblogs.com/jskbk/p/5538121.html
