love6 challenge java
Hi,
I am working one below challenge
http://codingbat.com/prob/p137742
how do i design this problem with flow chart etc and how to improve my design and implementation. please advise
I am working one below challenge
http://codingbat.com/prob/p137742
public boolean love6(int a, int b) {i am failing one test case
if((a==6||b==6)|(a+b==6)|(a-b==6))
{
return true;
}
else{
return false;
}
}
Expected Run
love6(6, 4) → true true OK
love6(4, 5) → false false OK
love6(1, 5) → true true OK
love6(1, 6) → true true OK
love6(1, 8) → false false OK
love6(1, 7) → true false X
love6(7, 5) → false false OK
love6(8, 2) → true true OK
love6(6, 6) → true true OK
love6(-6, 2) → false false OK
love6(-4, -10) → true true OK
love6(-7, 1) → false false OK
love6(7, -1) → true true OK
love6(-6, 12) → true true OK
love6(-2, -4) → false false OK
love6(7, 1) → true true OK
love6(0, 9) → false false OK
love6(8, 3) → false false OK
love6(3, 3) → true true OK
love6(3, 4) → false false OK
other tests
OK
how do i design this problem with flow chart etc and how to improve my design and implementation. please advise
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
ASCII flowchart
i like this. Where i can find more information on it. I never used it. Please advise
Honestly, I made it up. Apparently it wasn't orginal though because there is a free tool to do something similar at asciiflow.com.
ASKER
The question gave you a clue about using Math.abs(..)
i overlooked that point
Secondly, instead of using bitwise-OR you need to use ||
why is it preferred due to performance (where if it is false (or true) then does not bother to check next one whether true or false since result is anyway false?
Yes its cleaner and quicker to use logical OR.
ASKER
(Math.abs(Math.max(a,b)-Math.min(a,b ))==6)||(a +b==6)?tru e:a+b-a==6 ||a+b-b==6 ?true:fals e;
above is not clear to me. please advise
ASKER
(Math.max(a,b)-Math.min(a,
||(a+b==6) then or condition(ie not bit or??)
?true:a+b-a==6||a+b-b==6?t
too confusing to me
||(a+b==6) then or condition(ie not bit or??)
?true:a+b-a==6||a+b-b==6?t
too confusing to me
this is easier . . .
return (Math.abs(a-b)==6)||(a+b==6)?true:a==6||b==6?true:false;
return a==6 || b==6 || a+b==6 || Math.abs(a-b)==6;
I think you'll find i've already posted that ;)return a==6 || b==6 || a+b==6 || Math.abs(a-b)==6;
i've already posted that ;)Then why is anyone still posting anything else?
Not sure ;)
I posted because the OP said he didnt follow my code.
Then why is anyone still posting anything else?
I might be wrong, but I think CEHJ was talking to *you* . ;)
:) A classic guddi9 puzzler
Yep - always bound to become more complicated than the original question. ;)
return a+b==6||a-b==6||b-a==6||a+b-a==6||a+b-b==6;ASKER
is it necessary to understand all solutions given by everyone or take the one which i understand easily?
Please advise
Please advise
ASKER
what is limit of ternary inside other ternary inside other ternary...i can go till any number?
ASKER
I am some how not good fan of ternaries not sure why
ASKER
my mind wont go further down if it has more than 2, 3 ternaries not sure how you guys picture, imagine and code multiple ternaries scenarios
ASKER
return a+b==6||a-b==6||b-a==6||a+b-a==6||a+ b-b==6;
in above line what is meaning of last part as below?
a+b-a==6||a+b-b==6(a+b-a means b right and same way a+b-b results in a right???not sure what we are conveying to compiler or to jvm whichever
other first part is clear which is a+b==6||a-b==6||b-a==6
is it necessary to understand all solutions given by everyone or take the one which i understand easily?
Please advise
Eventually, yes; but at the outset . . . like perhaps now . . . it's best to understand one at a time, the if statement structure first - which all the guys here and in your others questions are masterful at, and then, after that, the ternary ops.
OK so my last post was severely overcomplicated and you ought to ignore it really for now, and look at what gurps, ozo and CEHJ have recommended, as these are all succinct and therefore powerful as well as easy to understand answers.
my mind wont go further down if it has more than 2, 3 ternaries not sure how you guys picture, imagine and code multiple ternaries scenarios
I certainly don't ;) That's just spaghetti
I class mine as tagliatelle. ;)
I would aim for lasagne at the very worst
Ahhh . . . so you are then nesting quite deeply. ;)
Open in new window