[alloc]init] and [new]

Alloc   Class method of NSObject. Returns a new instance of the receiving class. Init Instance method of NSObject. Implemented by subclasses to initialize a new object (the receiver) immediately after memory for it has been allocated. New  Class method of NSObject. Allocates a new instance of the receiving class, sends it an init message, and returns the initialized object. Release Instance method of NSObject delegate. Decrements the receiver’s reference count. Autorelease  Instance method of NSObject delegate. Adds the receiver to the current autorelease pool. Retain: Instance method of NSObject delegate. Increments the receiver’s reference count. Copy : Instance method of NSObject delegate. Returns a new instance that’s a copy of the receiver. So to conclude we can say that alloc goes with init new = alloc + init