how zero is affecting the result in division method

Question

int a=0234;
int result=a/100;
System.out.println("result is " + result);

output:

result is 1

Why is result not 2?

Answer 1

0234 is an octal number which equals 2 * 82 + 3 * 81 + 4 * 80, which is 156.

Then 156/100 = 1 (due to integer division)