Java Reference
In-Depth Information
//**********************************************************
public class Handler
{
public static void main(String[] args)
{
int dividend = 100;
int divisor, result;
divisor = Keyin.inInt("Enter divisor: ");
try
{
result = PreDivide(dividend, divisor);
System.out.println("result="+result);
}
catch(DivisionException msgText)
{
System.out.println("In main(): " + msgText);
}
}
static int PreDivide(int numerator, int denominator)
throws DivisionException
{
int quotient;
quotient = Divide(numerator, denominator);
return quotient;
}
static int Divide(int x, int y)
throws DivisionException
{
int value = 0;
if(y == 0)
throw new DivisionException("Illegal Division");
else
value =x/y;
return value;
}
}
//******************************
// Exception handler class
//******************************
class DivisionException extends Exception
{
// Parameterized constructor
public DivisionException(String message)
{
super(message);
}
}
The program Handler.java, listed previously, contains two classes. The
driving class (Handler) includes the methods main(), PreDivide(), and Di-
