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exceptions

 
Ranch Hand
Posts: 39
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class Level1Exception extends Exception {}
class Level2Exception extends Level1Exception {}
class Level3Exception extends Level2Exception {}
class Purple {
public static void main(String args[]) {
int a,b,c,d,f,g,x;
a = b = c = d = f = g = 0;
x = 1;
try {
throw new Level1Exception();
try {
switch (x) {
case 1: throw new Level1Exception();
case 2: throw new Level2Exception();
case 3: throw new Level3Exception();
} a++; }
catch (Level2Exception e) {b++;}
finally {c++;}
}
catch (Level1Exception e) { d++;}
catch (Exception e) {f++;}
finally {g++;}
System.out.print(a+","+b+","+c+","+d+","+f+","+g);
}}


the result of this is compiler error , saying switch statement cannot be reached.
the whole time i was thinking about what could be the error in exceptions and not thinking about unreacheable statements.any guidelines on identifying unreacheable statements and when to look for those.
thanks
 
Greenhorn
Posts: 12
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It's because the program
"throw new Level1Exception();"
before the second "try", so the second "try" is not reachable.
 
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