... 262–263choosing Tools menu, Identity Inspector, 255connecting AppController to the user interface controls, 252connecting the UpperCase and LowerCase but-tons to the AppController, 260Connections ... objects, 143See also Xcodecode folding, 117code generation, 206Code Sense (code completion), 106 collection classes, 141collection property list classesNSArray, 267NSDictionary, 267colons ... Xcode, 104 bsearch(), 137Build and Go button, 7 C [c] decoration, 305 .c file extension, 8 C preprocessor, 93 C+ +, 1–2comparing to Objective- C, 309embedding C+ + objects into Objective- C objects,...