Java: sum of two integers being printed as concatenation of the two

Question

Consider this code:

int x = 17;
int y = 013;
System.out.println(\"x+y = \" + x + y);

When I run this code I get the output 1711. Can anybod

Answer 1

Numbers prefixed with 0 are octal. 13 Octal is 11 decimal.

The x + y call treats both paramters as strings, so you are combining the string "17" and "11".