To remove a reference to an object is to set the reference variable to null. : Garbage Collection « Java Source And Data Type « SCJP

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SCJP » Java Source And Data Type » Garbage Collection

1.27.4.To remove a reference to an object is to set the reference variable to null.

public class MainClass {

   public static void main(String [] args) {

     StringBuffer sb = new StringBuffer("hello");

     System.out.println(sb);

     sb = null;

     // Now the StringBuffer object is eligible for collection

   }

 }

1.27.Garbage Collection
	1.27.1.	JVM Garbage Collection
	1.27.2.	How to Cause Leaks in a Garbage Collection System
	1.27.3.	Avoiding the memory leak
	1.27.4.	To remove a reference to an object is to set the reference variable to null.
	1.27.5.	Reassigning a Reference Variable to remove a reference to an object
	1.27.6.	If an object is returned from the method, its reference might be assigned to a reference variable;
	1.27.7.	Free memory result should indicate whether Garbage collector has run
	1.27.8.	An Example of Garbage Collection in Action

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