What is the result of adding 070+010 in java?

Asked Feb 13 '20 at 15:54

Active Feb 13 '20 at 16:27

Viewed 54 times

I tried to add the following integers together. But I wondered after see the output of the program.

class Test{
    public static void main(String[] args) {
        int a = 070;
        int b = 010;
        System.out.println(a+b);
    }
}

Output 64 Then how It happened I expected 80(10+70)

asked Feb 13 '20 at 15:54

Hilton

10

Starting a literal integer with 0 indicates that you're typing it in base 8 – kumesana Feb 13 '20 at 15:55
2

64 is correct. By prefixing your numbers with a zero you are telling Java that they are *octal* values instead of decimal ones. – JonK Feb 13 '20 at 15:56
@Michael Is there a canonical dupe target for octal typos? Seems it pops up often enough – JonK Feb 13 '20 at 15:57
@slim to be made aware that it doesn't compile? – kumesana Feb 13 '20 at 16:00
2

@JonK Maybe this one? [Integer with leading zeroes](https://stackoverflow.com/q/565634/5221149) – Andreas Feb 13 '20 at 16:01
@Andreas Good find. I've cleaned it up – Michael Feb 13 '20 at 16:26

0 Answers0