What is the purpose of garbage collection in Java, and when is it used?

.NET C C++ CSS DBA General HTML Java JavaScript JSP JUnit MySQL Networking Oracle Perl Perl PHP PL/SQL RSS Software QA SQL Server Struts Unix Windows XHTML XML

Home Hot About Collections Index RSS Atom Ask

Tester Developer DBA Windows JAR DLL Files Certificates RegEx Links Q&A Biotech Phones Travel FAQ Forum

Home > Java

✍: Guest

The purpose of garbage collection is to identify and discard objects that are no longer needed by a program so that their resources can be reclaimed and reused. A Java object is subject to garbage collection when it becomes unreachable to the program in which it is used.

2013-04-23, 2134👍, 0💬

How can you minimize the need of garbage collection and make the memory use more effective?
How can you minimize the need of garbage collection and make the memory use more effective? Use object pooling and weak object references. 2013-04-19, 2351👍, 0💬

How would you make a copy of an entire Java object with its state?
How would you make a copy of an entire Java object with its state? Have this class implement Cloneable interface and call its method clone(). 2013-04-16, 2304👍, 0💬

There are two classes: A and B. The class B need to inform a class A when some important event has happened. What Java techniqu
There are two classes: A and B. The class B need to inform a class A when some important event has happened. What Java technique would you use to implement it? If these classes are threads I'd consider notify() or notifyAll(). For regular classes you can use the Observer interface. 2013-04-19, 2209👍, 0💬

What are pass by reference and passby value?
What are pass by reference and passby value? Pass By Reference means the passing the address itself rather than passing the value. Passby Value means passing a copy of the value to be passed. 2013-04-24, 2185👍, 0💬

Explain different way of using thread?
Explain different way of using thread? The thread could be implemented by using runnable interface or by inheriting from the Thread class. The former is more advantageous, 'cause when you are going for multiple inheritance..the only interface can help. 2013-04-24, 2151👍, 0💬

Describe synchronization in respect to multithreading.
Describe synchronization in respect to multithreading. With respect to multithreading, synchronization is the capability to control the access of multiple threads to shared resources. Without synchonization, it is possible for one thread to modify a shared variable while another thread is in the pro... 2013-04-23, 2150👍, 0💬

What is the purpose of garbage collection in Java, and when is it used?
What is the purpose of garbage collection in Java, and when is it used? The purpose of garbage collection is to identify and discard objects that are no longer needed by a program so that their resources can be reclaimed and reused. A Java object is subject to garbage collection when it becomes unre... 2013-04-23, 2135👍, 0💬

What is the difference between an Interface and an Abstract class?
What is the difference between an Interface and an Abstract class? An abstract class can have instance methods that implement a default behavior. An Interface can only declare constants and instance methods, but cannot implement default behavior and all methods are implicitly abstract. An interface ... 2013-04-22, 2098👍, 0💬

Difference between HashMap and HashTable?
Difference between HashMap and HashTable? The HashMap class is roughly equivalent to Hashtable, except that it is unsynchronized and permits nulls. (HashMap allows null values as key and value whereas Hashtable doesnt allow). HashMap does not guarantee that the order of the map will remain constant ... 2013-04-25, 2066👍, 0💬

.NET C C++ CSS DBA General HTML Java JavaScript JSP JUnit MySQL Networking Oracle Perl Perl PHP PL/SQL RSS Software QA SQL Server Struts Unix Windows XHTML XML

Home Hot About Collections Index RSS Atom Ask

Tester Developer DBA Windows JAR DLL Files Certificates RegEx Links Q&A Biotech Phones Travel FAQ Forum

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.