题目内容

Which of the following statements DOES NOTcome fromthe Art of War?

A. If you know the enemy and know yourself, you can fight a hundred battles with no danger of defeat.
B. A whole army may be robbed of its spirit, a commander-in-chief may be robbed of his presence of mind.
C. Out of thirty-six plans, the best is to get away at once.
D. All warfare is based on deception

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在异常处理中，如果要释放资源、关闭连接，关闭文件，关闭数据库，则由下列哪种代码块处理？

A. try
B. catch
C. finally
D. throws

对于catch子句的排列，下列说法正确的是对于catch子句的排列，下列哪种是正确的( )A、父类在先，子类在后B、子类在先，父类在后C、有继承关系的异常不能在同一个try程序段内

A. 父类在前，子类在后
B. 子类在前，父类在后
C. 谁在前谁在前都无所谓
D. 具有继承关系的异常不能在同一个try中出现

自定义异常类都必须继承自下列哪个类？

A. Error
B. Throwable
C. Exception
D. NullPointerException

定义一个司机类，司机的年龄必须在18到70之间否则抛出异常public class Driver{int age;Driver(){}Driver(int age){this.age=age;}public int getAge() __ IllegalAge{if(this.age<18||this.age>70) new IllegalAge();elsereturn age;}public void setAge(int age){this.age=age;}}定义异常类public class IllegalAge extends _{Driver d;public String toString(){return "年龄必须在18到70岁之间";}}public class TestIllegalAge{public static void main(String[] args){Driver d1=new (40);Driver d2=new Driver(16);//下面代码中有抛出异常的方法getAge(){int age1=d1.getAge(); //getAge()会抛出异常，要进行异常处理System.out.println("d1的年龄是"+age1);int age2=d2.getAge();System.out.println("d2的年龄是"+age2);}catch(_______ e){e.printStackTrace();e.toString();e.getMessage();}}}