When you use a string literal the string can be interned, but when you use new String(“…”) you get a new string object. In this example both string literals refer the same object: String a = “abc”; String b = “abc”; System.out.println(a == b); // true Here, 2 different objects are created and they have … Read more
There are two ways to split strings over multiple lines: Each string on its own line. Works only with strings: Plain C: char *my_string = “Line 1 ” “Line 2″; Objective-C: NSString *my_string = @”Line1 ” “Line2”; // the second @ is optional Using \ – can be used for any expression: Plain C: char … Read more
The code for percent sign in NSString format is %%. This is also true for NSLog() and printf() formats.
Well … Sort of. The easiest is to just use the fact that adjacent string literals are concatenated by the compiler: const char *text = “This text is pretty long, but will be ” “concatenated into just a single string. ” “The disadvantage is that you have to quote ” “each part, and newlines must … Read more
String literals Escaping single quotes ‘ by doubling them up → ” is the standard way and works of course: ‘user’s log’ — incorrect syntax (unbalanced quote) ‘user”s log’ Plain single quotes (ASCII / UTF-8 code 39), mind you, not backticks `, which have no special purpose in Postgres (unlike certain other RDBMS) and not … Read more