towAsOne challenge

Hi,

I am working on below challenge
http://codingbat.com/prob/p113261

I tried my code as below
public boolean twoAsOne(int a, int b, int c) {
  if((a+b)==c)
  {
  return true;
  }
  
   else if((b+c)==a)
  {
  return true;
  }
  
   else if((a+c)==b)
  {
  return true;
  }
  else 
  return false;
}

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I am getting below result
Expected      Run            
twoAsOne(1, 2, 3) → true      true      OK         
twoAsOne(3, 1, 2) → true      true      OK         
twoAsOne(3, 2, 2) → false      false      OK         
twoAsOne(2, 3, 1) → true      true      OK         
twoAsOne(5, 3, -2) → true      true      OK         
twoAsOne(5, 3, -3) → false      false      OK         
twoAsOne(2, 5, 3) → true      true      OK         
twoAsOne(9, 5, 5) → false      false      OK         
twoAsOne(9, 4, 5) → true      true      OK         
twoAsOne(5, 4, 9) → true      true      OK         
twoAsOne(3, 3, 0) → true      true      OK         
twoAsOne(3, 3, 2) → false      false      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
LVL 7
gudii9Asked:
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CEHJCommented:
It's a bit wordy, but fine. You could have just done

return a+b == c || a+c == b || c+b == a;

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CEHJCommented:
:)
0
ozoCommented:
// overkill in this case, but
  List<Integer> list = new ArrayList<Integer>();
  Collections.addAll(list, a*2,b*2,c*2);
  return list.contains(a+b+c);
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