自定义两个异常类非法姓名异常IllegaNameException和非法地址异常IllegalAddressException。

class IllegaNameException extends Exception//非法姓名异常
{public IllegaNameException(String message){super(message);}public IllegaNameException(){super();}
}
class IllegalAddressException extends Exception//非法地址异常
{public IllegalAddressException(String message){super(message);}public IllegalAddressException(){super();}
}
class Student
{String name;String address;public void setName(String name) throws IllegaNameException{this.name = name;int n=name.length();if(n<1||n>5){throw new IllegaNameException("姓名长度不符合要求");}}public void setAddress(String address) throws  IllegalAddressException{this.address = address;int n=address.length();boolean flag=false;for(int i=0;i<n;i++){if(address.charAt(i)=='省'||address.charAt(i)=='市'){flag=true;}}if(!flag){throw new IllegalAddressException("地址长度不符合要求");}}
}
public class Test6_3_zxj {
//    （三）自定义异常的定义、拋出和捕获试验
//
//      (1)自定义两个异常类非法姓名异常IllegaNameException和非法地址异常IllegalAddressException。
//
//      (2)定义Student类包含Name和Address属性，和setName、setAddress方法，当姓名长度小于1或者大于5抛出IllegaNameExceptio，当地址中不含有”省”或者“市”关键字抛出IllegalAddressException。
//
//      (3)在main方法中进行捕获试验。public static void main(String args[]) throws IllegaNameException, IllegalAddressException {Student s=new Student();try {s.setName("i have 7 sons,they are my roomates");}catch(IllegaNameException e){System.out.println("姓名输入错误");}try {s.setAddress("我们生活在瓦罗兰大陆德玛西亚区");}catch(IllegalAddressException e){System.out.println("地址输入错误");}}
}

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