teenSum java challenge
Hi,
I am trying below challenge
I tried as below
I am getting below result
how to improve my approach and design of this challenge. How do i make a graphical venn or some other relevant diagram to design it before writing single line of code to decide best strategy?
Please advise
I am trying below challenge
http://codingbat.com/prob/p178728
I tried as below
public int teenSum(int a, int b) {
int sum =a+b;
if(a==13||a==13||a==14||a==15||a==16||a==17||a==18||a==19||b==13||b==14||b==15||b==16||b==17||b==18||b==19)
{
return 19;
}
return a+b;
}I am getting below result
Expected Run
teenSum(3, 4) → 7 7 OK
teenSum(10, 13) → 19 19 OK
teenSum(13, 2) → 19 19 OK
teenSum(3, 19) → 19 19 OK
teenSum(13, 13) → 19 19 OK
teenSum(10, 10) → 20 20 OK
teenSum(6, 14) → 19 19 OK
teenSum(15, 2) → 19 19 OK
teenSum(19, 19) → 19 19 OK
teenSum(19, 20) → 19 19 OK
teenSum(2, 18) → 19 19 OK
teenSum(12, 4) → 16 16 OK
teenSum(2, 20) → 22 22 OK
teenSum(2, 17) → 19 19 OK
teenSum(2, 16) → 19 19 OK
teenSum(6, 7) → 13 13 OK
other tests
OK
how to improve my approach and design of this challenge. How do i make a graphical venn or some other relevant diagram to design it before writing single line of code to decide best strategy?
Please advise
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
ASKER
13<=a&&a<=19
above solution how the values like 14, 15, 16, 17, 18 checked?
above solution how the values like 14, 15, 16, 17, 18 checked?
ASKER
i got it. you are checking if in between 13, 19 both includinded for both a and b which is more refined approach than mine
13<=14 is true and 14<=19 is true
Slight modification to gurpsbassi's solution using a method -
public int teenSum(int a, int b) {
return isLuckyRange(a, b) ? 19 : a + b;
}
private boolean isLuckyRange(int a, int b){
return (a >= 13 && a <=19) || (b >= 13 && b <= 19);
}
public int teenSum(int a, int b) {
return isLuckyRange(a, b) ? 19 : a + b;
}
private boolean isLuckyRange(int a, int b){
return (a >= 13 && a <=19) || (b >= 13 && b <= 19);
}
ASKER