EAFP. Ask for forgiveness not permission in Java
exception, java, try-catch
Solution
You can avoid the overhead of throwing an exception by checking the size of the array:
if(rowIndex < array2D.length)
{
if(columnIndex < array2D[rowIndex].length)
{
// you are safe here
}
}
Problem
Is it a good practice in Java to ask for forgiveness not permission in general and in the next example? The example is: ``` try { Cell value = array2D[rowIndex][columnIndex]; } catch (ArrayIndexOutOfBoundsException e) {} ``` As you can see in the above piece of code we get `value` out of the `array2D`. If the `value` is out of bounds we do nothing. I ask this question because it is much easier to implement `EAFP` than `LBYL` (look before you leap) in some cases (for example finding all neighbors of given `Cell` in `array2D`).