King Saud University
College of Computer and Information Sciences
Computer Science Department
CSC#113:#Java#Programming#2#
Tutorial#8#
Exception#2#
Fall#2020#
Exceptions+-+2+
1+
Q1: Given the following Java program:
public class UnderZeroException extends Exception {
public UnderZeroException (String m){
super(m);} }
public class ZeroException extends RuntimeException {
public ZeroException(String m) {
super(m);} }
public class ExceptionExercise{
private int[] numbers = {1,-3,-5,0};
private int x;
public void method1(int y) throws UnderZeroException {
System.out.println("Start of method1");
int temp = numbers[y];
x= y+1;
if (temp <0)
throw new UnderZeroException("method1:The number is
negative!");
else if(temp == 0)
throw new ZeroException("method1:The number is zero");
System.out.println("End of method1");
}
public void method2(int n) throws UnderZeroException {
System.out.println("Start of method2");
try{
method1(n);}
catch(UnderZeroException e)
{
System.out.println(e);
if(x>2)
throw e;
else
throw new UnderZeroException("method2:The number is
negative!"); }
finally
{System.out.println("Finally in method2");}
