I have the below code producing this output (no space after -1) ==> "1 3 -14 -15 -1"
int [] arr = {1, 3, Integer.MAX_VALUE, 4, Integer.MAX_VALUE, 5, Integer.MAX_VALUE};
for (int dist : arr) {
System.out.print((dist == Integer.MAX_VALUE) ? -1 : dist + " ");
}
But if I evaluate the ternary expression separately (as shown below), it gives a different output (what I expected) ==> "1 3 -1 4 -1 5 -1"
int [] arr = {1, 3, Integer.MAX_VALUE, 4, Integer.MAX_VALUE, 5, Integer.MAX_VALUE};
for (int dist : arr) {
int finalDist = (dist == Integer.MAX_VALUE) ? -1 : dist;
System.out.print(finalDist + " ");
}
What is going wrong with the first code snippet?
Here
(dist == Integer.MAX_VALUE) ? -1 : dist + " "
The space will be added only if the condition is false. You should use parantheses to add " " at all times like below.
((dist == Integer.MAX_VALUE) ? -1 : dist) + " "
The ternary operator has only operator precedence over the assignment operators. (See below)
The operators in the following table are listed according to precedence order. The closer to the top of the table an operator appears, the higher its precedence.

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