long value with 0 on left

Question

Why this behavior happens?

long value = 123450;
System.out.println(\"value: \" + value); 

value: 123450

 

long         


        

Answer 1

Octal literal. See Java Language Specification, 3.10.1 for detailed, albeit somewhat dry, description of Java number literals. To find and study more fun stuff like that, refer to 'Java puzzlers' book.