From the JLS 5.2 Assignment Conversion In addition, if the expression is a constant expression (§15.28) of type byte, short, char, or int: – A narrowing primitive conversion may be used if the type of the variable is byte, short, or char, and the value of the constant expression is representable in the type of … Read more
for “%b” : If the argument arg is null, then the result is “false”. If arg is a boolean or Boolean, then the result is the string returned by String.valueOf(). Otherwise, the result is “true”. reference
Am I wrong? Nope, you’re absolutely right – as is your example timeline. In addition to it not being atomic, it’s not guaranteed that the write to id will be picked up by the other thread anyway, given that there’s no synchronization and the field isn’t volatile. It’s somewhat disconcerting for reference material like this … Read more
NaN means “Not a Number”. Java Language Specification (JLS) Third Edition says: An operation that overflows produces a signed infinity, an operation that underflows produces a denormalized value or a signed zero, and an operation that has no mathematically definite result produces NaN. All numeric operations with NaN as an operand produce NaN as a … Read more
Here is a list of connecting characters. These are characters used to connect words. http://www.fileformat.info/info/unicode/category/Pc/list.htm U+005F _ LOW LINE U+203F ‿ UNDERTIE U+2040 ⁀ CHARACTER TIE U+2054 ⁔ INVERTED UNDERTIE U+FE33 ︳ PRESENTATION FORM FOR VERTICAL LOW LINE U+FE34 ︴ PRESENTATION FORM FOR VERTICAL WAVY LOW LINE U+FE4D ﹍ DASHED LOW LINE U+FE4E ﹎ CENTRELINE … Read more