Technology Questions

Q:

What are the different functions in sorting an array?

Answer

sort() , rsort(), asort()
ksort()   , usort()
arsort()  , uksort()
natsort() , natcasesort()
array_multisort()

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Subject: PHP

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Q:

What is multicast?

Answer

To send data/info to group of computers using same network

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Q:

Can you access non static variable in static context ?

Answer

A static variable in Java belongs to its class and its value remains the same for all its instances. A static variable is initialized when the class is loaded by the JVM. If your code tries to access a non-static variable, without any instance, the compiler will complain, because those variables are not created yet and they are not associated with any instance.

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Subject: Java

0 2531
Q:

What are the prime responsibilities of Data Integration Administrator?

Answer

- Scheduling and executing the batch jobs.


- Configuring, starting and stopping the real-time services


- Adapters configuration and managing them.


- Repository usage, Job Server configuration.


- Access Server configuration.


- Batch job publishing.


- Real-time services publishing through web services.

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Q:

What does it mean if the null indicator has -1, 0, -2?

Answer

 -1 indicates the field is null


 0 indicates the field is not null


 -2 indicates the field is truncated

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Q:

When is the best time to kill a foreground activity?

Answer

The foreground activity, being the most important among the other states, is only killed or terminated as a last resort, especially if it is already consuming too much memory. When a memory paging state has been reach by a foreground activity, then it is killed so that the user interface can retain its responsiveness to the user.


 

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Q:

What is final method?

Answer

Final method is a method defined in the super class with final modifier.


We cannot overriding final method of super class in the sub class.


EX:


 Class Sample {


   final void funOne() {


   }


   void funTwo() {


   }


}


Class Sub extends Sample {


  void funOne() { // overriding is not allowed


  }


  viod funTwo() { //overriding is allowed


  }


}

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Subject: Java

0 2525
Q:

Explain the basic difference between 32-bit and 64-bit operating system?

Answer

A 32 bit processor is faster than a 64 bit processor, 64 bit processors are very commonly used that you can find it easily in any home pc but the main difference is the hardware you are having on your machine. For 32 bits there isn't any need of any wide main bus to carry 32 bits at a time but for 64 bits its must that you should have a wider bus to carry 64bits.

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