【说明】本程序实现功能：读入两个整数，第1个数除以第2个数，声明当除数为零时抛出异常类DivideByZeroException。

public class DivideByZeroException(1)

public DivideByZeroException ( )

super("Attcmpted to divide by zero");

import java.io. *;

public class Example

private static int quotient(int numerator, in)\”t denominator) throws

DivideByZeroException

if (denominator==0)

throw(2);

return(numerator / denominator);

public static void main(String args[])

int number1=0, number2=0, result0;

try

System.out.print1n("Enter the first number:");

number1 = Integer. valueOf(Keyboard.getString()).intValue();

System.out.print1n("Enter the second number:");

number2 = Integer. Va1ueOf(Keyboard.getString()).intValue();

result = quotient(number1,number2);

catch (NumberFormatException e)

System.out.print1n("Invalid integer entered!");

System. exit(-1);

catch ((3))

System.out.print1n(e.to String());

System.exit(-1);

Systcm.out.pfint1n(number1 + "/" + number2 + "=" + result);

其中, Keyboard类的声明为:

import java.io.*;

public class Keyboard

static BufferedReader inputStream =(4)

(new InputStreamReader(System.in));

public static int getInteger()

try(

return (Intoger.valueOf(inputStream.readLine().trim()).intValue());

catch (Exception e)

e.printStackTrace();

return 0;

public static String getString()

try

return (inputStream.readLine());

catch ((5))

return "0";