public class Student
{
String name;
int age;
public Student(String name, int age)
{
this.name = name;
this.age = age;
}
/*
* The finalize() method is invoked each time before the object is garbage
* collected. This method can be used to perform cleanup processing. This
* method is defined in Object class.
*/
public void finalize()
{
System.out.println(this + "object is garbage collected," + " name :"
+ this.name);
}
}
public class StudentTest
{
public static void main(String[] args) throws InterruptedException
{
Student johnReferenceVariable = new Student("John", 25);
Student peterReferenceVariable = new Student("Peter", 25);
/*
* Now the object referred by johnReferenceVariable is available for
* garbage collection
*/
johnReferenceVariable = null;
/*
* Now the object referred by peterReferenceVariable is available for
* garbage collection
*/
peterReferenceVariable = null;
/*
* The gc() method is used to invoke the garbage collector to perform
* cleanup processing. The gc() is found in System and Runtime classes.
*/
System.gc();
Thread.sleep(100);
}
}
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