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__weak and __unsafe_unretained are the ownership qualifiers introduced by LLVM Compiler 3.0.
By default all pointers are __strong under ARC which means that when an object is assigned to a pointer, it is retained for as long as that pointer refers t
Protocols are powerful functionality provided by iOS. These are set of behavior that is expected from an object to behave/respond in a given situation.
Protocols are set of methods and properties. One can define protocol as:
@protocol protocolName
The Self and Super Keyword in IOS are important and one should know why and how they are used in objective c.
One should always access the instance variables directly from or within an initialization method. Because at the time when property is set o
The Self and Super Keyword in IOS are important and one should know why and how they are used in objective c.
One should always access the instance variables directly from or within an initialization method. Because at the time when property is set o
On executing PDLC a QA engineer should follow this practice:
First know the technology
Always Learn from your past experiences
Ensure sufficient coverage of feature- It includes the following points:
(a) Write Use cases
(b) Create Test scenarios
Error in Objective treated as Object and inherited NSObject.
NSError object encapsulate three types of information
1) Code - Nsinteger value which give the error’s unique identifier
2) Domain - NSString value having error domain
3) userInfo -
If you want to import large sql file to mysql via terminal, here are the steps:
First go to terminal, for Linux (UBNTU) user can go directly by pressing Ctrl-Alt-t key.
Now write down the following commands in Terminal.
mysql -u <username> -p
Singleton pattern is used where we want to enforce that only one instance of the class is created in our program.
Here is the small example of Singleton class.
public class GlobalServiceManager
{
private GlobalServiceManager()
{
Advantages Of Unity3D
Unity Has number of advantages, Some of them are here:-
Supports Multi Platform
Unity supports development of games in Multi Platform (iOS, Android, Windows, Web, PS3, and Xbox) without separate code. Unity allows creating 2D
Hello Everyone,
Nowdays I was trying to learn how to handle Big Data, the framework I am currently using is Apache Hadoop. Now I need large amount of data for testing for getting large amount of data I was using apache-flume to download tweets from
