What about isEmpty() ? if(str != null && !str.isEmpty()) Be sure to use the parts of && in this order, because java will not proceed to evaluate the second part if the first part of && fails, thus ensuring you will not get a null pointer exception from str.isEmpty() if str is null. Beware, it’s … Read more
InvariantCulture Uses a “standard” set of character orderings (a,b,c, … etc.). This is in contrast to some specific locales, which may sort characters in different orders (‘a-with-acute’ may be before or after ‘a’, depending on the locale, and so on). Ordinal On the other hand, looks purely at the values of the raw byte(s) that … Read more
always Until you fully understand the differences and implications of using the == and === operators, use the === operator since it will save you from obscure (non-obvious) bugs and WTFs. The “regular” == operator can have very unexpected results due to the type-coercion internally, so using === is always the recommended approach. For insight … Read more