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Alinara [238K]
3 years ago
13

Which technique/concept can be use toimplement multiple inheritances in java?

Computers and Technology
1 answer:
LiRa [457]3 years ago
8 0

Answer:

Interface

Explanation:

Java does not supports multiple inheritance by class, but we can implement multiple inharitacnce in  java using interface, with interface we uses implements keyword.

Example-

Declare interface like below code -

interface parent{

}

and use in child class like below code -

class Child1 implements interface{

}

class Child2 implements interface{

}

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Which threading model is best for achieving true parallelism and how?
WITCHER [35]

Answer:

The explantion of this question is given below in the explanation section.              

Explanation:

Parallelism means that an application is split into smaller subtasks that can be processed in parallel on multiple CPU at the same time. Parallelism is related to application handling individual tasks on multiple CPUs. To achieve true parallelism your application must have more than one thread running, schedule the task into other threads, graphics cards, and CPU, etc.  

It is noted that parallelism is a concept while multiple threading in computer programing is its implementation. Some operating systems provide a multiple threading that combined the user-level thread and kernel-level thread facility. In such a system, multiple threads within the same application can run in parallel on multiple CPU or processors

There are three types of Multithreading Model

• Many to many relationships.

• Many to one relationship.

• One to one relationship.

Many to many relationship

This model multiplexes any number of user threads onto an equal or smaller number of kernel threads. However, this model provides the best accuracy to concurrency. However, using this model, true parallelism can be achieved, if the system has multiprocessor.  

Many to One model

This model maps the user-level threads to one kernel-level thread and its management is done in userspace by the thread library. In this model, only one thread can access the Kernal at a time, so multiple threads are unable to run on multiple CPU in parallel.  

One to one relationship

This model provides one to one relationship between the user and kernel-level thread. This model is better than the many-to-one model. It allows another thread to execute when a thread makes a blocking system call. However, it supports multiple threads to execute in parallel on the microprocessor. This model provides true parallelism.  

                                                                  

7 0
3 years ago
_____ of a global information system (GIS) concentrates on medium-range activities that move an organization toward achieving lo
Dafna11 [192]

Answer: (A) Tactical support

Explanation:

 GIS is the global information system in which the data is delivered worldwide in the form of information system. The global information system achieve long term goals in an organization.

  • The tactical support is used in the global information system for concentrating the activities on the medium range in an organization.  
  • The tactical support is one of the effective way to producing the desirable result and also achieve the main strategic objective.

Therefore, Option (A) is correct.

8 0
3 years ago
Green computing involves reducing electricity consumed and environmental waste generated when using a computer. which of the fol
sergeinik [125]
If you want to support green computing, the most basic thing you can do is reduce your brightness. More light equals more energy consumption. That's why there are websites that are made as exact copies of other websites except they're entirely black because the color black spends less energy. You can also try to fix your things when they get broken instead of throwing them away instantly and buying a new one.
8 0
3 years ago
I need a computer science help.....and I rlly want it right now...this the question
muminat
Define, en tus propias palabras, lo que son los sistemas de información.
6 0
3 years ago
If you want a user to actively participate in an online activity, create a web ______________.
elena-14-01-66 [18.8K]

If you want a user to actively participate in an online activity, create a web ______________.  

1. animation  

2. application  

<u>3. page  </u>

4. source

6 0
3 years ago
Read 2 more answers
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