Enpatika

%p expects the argument to be of type (void *) and prints out the address . Whereas %x converts an unsigned int to unsigned hexadecimal and prints out the result.

A string is a series of characters , such as “hello, world” or “albatross” . Swift strings are represented by the String type. The contents of a String can be accessed in various ways, including as a collection of Character values.

2f” means “a floating-point number with two digits after the decimal point . When you use this initializer, Swift will automatically round the final digit as needed based on the following number.

Example 1: Java String format() %s in the format string is replaced with the content of language . %s is a format specifier . Similarly, %x is replaced with the hexadecimal value of number in String. format(“Number: %x”, number) .

The %s escape isn’t made for Objective-C nor Swift strings, it’s for C String only. Avoid the %s in the localized text at any cost too…

Strings in Swift are Unicode correct and locale insensitive, and are designed to be efficient. The String type bridges with the Objective-C class NSString and offers interoperability with C functions that works with strings. … Wrap each expression in a string interpolation in parentheses, prefixed by a backslash.