gc() method

The gc() method is used to invoke the garbage collector to perform cleanup processing. The gc() is found in System and Runtime classes.

$\begin{lstlisting} public static void gc(){} \end{lstlisting}$

Garbage collection is performed by a daemon thread called Garbage Collector(GC). This thread calls the finalize() method before object is garbage collected. Following is the simple Example of garbage collection in java.

$\begin{lstlisting} public class TestGarbage1{ public void finalize(){System.ou... ...ew TestGarbage1(); s1=null; s2=null; System.gc(); } } \end{lstlisting}$
Output
$\begin{lstlisting} object is garbage collected object is garbage collected \end{lstlisting}$