Doubt about garbage collection

[yuvraj kotegar]

 
 
package mypack;
import java.util.Date;
public class CheckGC {
public static void main(String args[]){
Runtime rt=Runtime.getRuntime();
System.out.println("Total JVM memory: " +rt.totalMemory());
System.out.println("Before memory" +rt.freeMemory());
Date d=null;
for(long i=0;i<10000;i++){
d=new Date();
            d=null;
}
System.out.println("After Memory" +rt.freeMemory());
rt.gc();
System.out.println("AFetr Garbege collection" +rt.freeMemory());
 



}
protected  void finalize()throws Exception{
System.out.println("am running");
}
}
 

 

my question is memory is reclaimed for which object here??

finalize will run for which object?

[Ernest Friedman-Hill]

The garbage collector will call the finalize() method of an object it's about to dispose of. The finalize() you supply here is in the class CheckGC; since no CheckGC objects are ever created, this finalize() will never be called. If the Date class had a finalize() method, then it could be called many times because of all the Date objects being created and discarded.