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|Core java - Interview Questions and Answers for 'Exfo' - 1 question(s) found - Order By Newest|
|Ans. The memory pool containing all the reflective data of the java virtual machine itself, such as class and method objects. With Java VMs that use class data sharing, this generation is divided into read-only and read-write areas. The Permanent generation contains metadata required by the JVM to describe the classes and methods used in the application. The permanent generation is populated by the JVM at runtime based on classes in use by the application. In addition, Java SE library classes and methods may be stored here.|
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|Like Discuss Correct / Improve java jvm memory management permgen permanent generation advanced architecture JP Morgan SAP Informatica Credit Agricole EXFO EMC Credit Agricole Cognizant (CTS) JP Morgan expert|
|Does garbage collection guarantee that a program will not run out of memory?|
|What are different ways to create String Object? Explain.|
|Describe what happens when an object is created in Java ?|
|Describe, in general, how java's garbage collector works ?|
|What are various types of Class loaders used by JVM ?|
|What are strong, soft, weak and phantom references in Java ?|
|What will happen if we don't have termination statement in recursion ?|
|Why two types of memory - stack and heap are required by Java ?|
|Different types of memory used by JVM ?|
|What is a class loader ? What are the different class loaders used by JVM ?|