Abstraction is nothing but data hiding . In java we will provide the object to users then they will use the object's but they doesn't know what is happening the behind . This is called abstraction. Abstraction uses in order to do some works easily.
For example, you have a abstract class fruit. And … Read more

Parallel resources are generally accessible through reservation systems, also called batch systems. To execute their jobs, clients have to submit via special mnemonics and chosen options a script that contains the command line that launches the job. Options are not necessarily given in the submission line, but can also appear in the script with a … Read more