How to initialize NSString to NSMutableString?

Question

Is there any way to initialize NSString to NSMutableString? and also reverse order?

-(void)st:(NSString *)st
{
  NSMutableString str = st; // gives warning..         


        

Answer 1

NSString *someImmutableString = @"something";
NSMutableString *mutableString = [someImmutableString mutableCopy];

Important! mutableCopy returns an object that you own, so you must either release or autorelease it.