Arithmetic operators in Java

• Java

I encountered a strange arithmetic operation. Here is the code:

int i = 9 + + 8 - - 11 + + 13 - - 14 + + 15;

    System.out.println(i);

It works without compilation errors and gives output 70. I tried Google but couldn't find the correct explanation Please forgive me, I'm a novice in Java

Solution

int i = 9 + + 8 - - 11 + + 13 - - 14 + + 15;
int i = 9 + + 8 - - 11 + + 13 - - 14 + + 15;

amount to

int i = 9 + (+8) - (-11) + (+13) - (-14) + (+15);

This is equivalent to

int i = 9 + 8 + 11 + 13 + 14 + 15;

Equal to 70

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