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Explain garbage collection.
Java uses garbage collection to free the memory. By cleaning those objects which is no longer reference by any of the program. Step involve in cleaning up garbage collection:
Garbage Object Collection: first step is to collect and group all those object which are no more reference with any of the program. We can use different methods to collect garbage object like using runtime.gc() or system.gc().
Run Finalize method: To free up those object that is collected by garbage collector java should execute the Finalize method to delete all those dynamically created object.
String is immutable in java : you can't change a string object but can replace it by creating a new object instance. Creating a new instance is rather expensive. //Non ef
Write a Java REST client to perform the following- The client will read the contents of the file - invoice.txt. The first line of the file will display the type of the currency.
JavaScript supports the normal control structures: The conditionals if, if...else, & switch; The iterations for, while, do...while, break, & continue;
What is hash Map
Validate() : Used to validate properties after they have been populated; known as before FormBean is handed to Action. Returns a collection of ActionError as ActionErrors. Followin
Elaborate Vector or Object oriented graphics along with at least one example. Object Oriented Graphics are the graphics that are commonly oriented towards the objects and have
Creating applications based on SOA Select your implementation technologies carefully. Carefully check if Web services are suitable. Sometimes using traditional methods suc
What is difference between Design and System Architecture? System Architecture : It is structure of a product or procedure. Design: It is begin of the procedure of devel
short Java application that stores words in an Array or ArrayList.
hi i need help with java
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