Garbage Collection in Java | Lecture 8 | Step by Step tutorial
Java Tutorial For Beginners 8(Step by Step tutorial) | Garbage Collection in Java | GC in Java | Lecture 8
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Lecture 8:
Garbage Collection is process of reclaiming the runtime unused memory automatically. In other words, it is a way to destroy the unused objects.
In java it is performed automatically.
There are many ways:
1. By nulling the reference
Employee e=new Employee()
e=null
2. By assigning a reference to another
Employee e1=new Employee()
Employee e2=new Employee()
e1=e2 now the first object referred by e1 is available for garbage collection
3. By anonymous object etc.
new Employee()
finalize() method:
The finalize() method is invoked each time before the object is garbage collected. This method can be used to perform cleanup processing.
public void finalize(){}
gc() method:
The gc() method is used to invoke the garbage collector to perform cleanup processing.
public static void gc(){}
System.gc()
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