evaluation of expression

[Naresh Gunda]

Hi,
How to evaluate the following expression

   
boolean b1 = false?false:true?false:true?false:true;

Can any one of u tell me, which operators are left associative and which operators are right associative?

Thanx in advance

[Abhishek Sharma]

Hi there,
After the execution of this expression b1 will have value
FALSE as this expression consists of subexpressions, and therefore
first of all subexpressions will be evaluated
in given question
boolean b1 = false?false:true?false:true?false:true;
it will break to
boolean b1 = (false?false true?false true?false:true)));
and result is accordingly...........

[Prashanth Raghavan]

It ultimately boils down from the rightmost to the left. The subexpressions get executed and the results assigned and this continues in a chain from right to left.

[Narender Kumar]

I think this is one of those
"think-like-a-compiler" kinda question.

lets see how we can evaluate this expression.
move from left to right as per associativity rules.

step 1: input--> false?false:true?false:true?false:true;
output--> false?false true?false:true?false:true);

step 2: input--> false?false true?false:true?false:true);
output--> false?false true?false true?false:true));

step 3: input--> false?false true?false true?false:true));
output--> false?false true?false true?false true)));

brackets shud clear your doubt a little bit....
does it??

-Narender
"Rock Steady"

[Narender Kumar]

oh nooooooooo....
i didnt not put soooo many sad emoticons in my message.

 
step 1: input--> false?false:true?false:true?false:true;
        output--> false?false :(  true?false:true?false:true);
 
step 2: input--> false?false :(  true?false:true?false:true);
        output--> false?false :(  true?false :(  true?false:true));
 
step 3: input--> false?false :(  true?false :(  true?false:true));
        output--> false?false :(  true?false :(  true?false :(  true)));
 

[Narender Kumar]

i am not gonna give up this easy.


step 1: input--> false?false:true?false:true?false:true;
output--> false?false: (true?false:true?false:true);

step 2: input--> false?false: (true?false:true?false:true);
output--> false?false: (true?false: (true?false:true));

step 3: input--> false?false: (true?false: (true?false:true));
output--> false?false: (true?false: (true?false true)));