flow controll help!!!

[Dillinger4]

Im taking the Java 2 progammer test in two weeks and one of my weakest points is program flow. Where one has to figure out a small programs output.

Im a little confused buy this program. The output is supposed to be 4 and 5 but i dont see it at all. If someone could please tell me how they are getting this it would be great.

class Question{
public class void main(String[] args){

for(int i = 0; i <10; ++i){
try{
try {
if(i % 3 == 0) throw new Exception("E0");
System.out.println(i);
}catch (Exception inner){
i *= 2;
if(i % 3 == 0) throw new Exception("E1");
}finally{
++i;
}
}catch (Exception outer) {
i += 3;
}finally{
--i
}
}
}
}

[VirtuallyVB]

First I thought you just needed some rest from studying. Your english typing and Java syntax is off.

But that is a tricky question. Don't forget that print statements are the basic form of debugging.

class Question{
public static void main(String[] args){

for(int i = 0; i <10; ++i){
try{
try {
if(i % 3 == 0) throw new Exception("E0");
System.out.println(i);
}catch (Exception inner){
i *= 2;
System.out.println("inner catch top: " + inner);
if(i % 3 == 0) throw new Exception("E1");
System.out.println("inner catch bottom: " + inner);
}finally{
System.out.println("inner finally");
++i;
}
}catch (Exception outer) {
i += 3;
System.out.println("outer catch: " + outer);
}finally{
System.out.println("outer finally");
--i ;
}
}
}
}

produces interesting results:
inner catch top: java.lang.Exception: E0
inner finally
outer catch: java.lang.Exception: E1
outer finally
4
inner finally
outer finally
5
inner finally
outer finally
inner catch top: java.lang.Exception: E0
inner finally
outer catch: java.lang.Exception: E1
outer finally

So you do get your 4 and 5. But I am surprised that it doesn't report that
System.out.println("inner catch bottom: " + inner);
is unreachable. Perhaps another value of i (outside of 0-9) reaches it, but I would have expected to see:
inner catch bottom: java.lang.Exception: E0
at some point after
outer catch: java.lang.Exception: E1

I wouldn't have gotten this one correct.

[Dillinger4]

"First I thought you just needed some rest from studying. Your english typing and Java syntax is off."

Not sure what you mean by off. I do need a rest though {{{laughing }}}

I know that is a hard one and if i see somthing like that on the test im just gonna skip it and go back to it at a later time.

With the two try statements togther like that
try{
try {

does the first "if" go to the outer catch and the second if go to the inner catch?

I get:

1.) first iteneration i = 0
0 % 3 == 0

2.)outer catch i += 3
i = 3

3.) finally 3 - 1 = 2

4.) system out 2.

5.) third iteneration i = 3
3 % 3 == 0

6.)outer catch i += 3
i = 6

7.) finally 6 - 1 = 5

8.)system out 5.