Asking questions about finalize() method in Java object finalization....

[albertlee]

class Chair {

static boolean gcrun = false;

static boolean f = false;

static int created = 0;

static int finalized = 0;

int i;

Chair() {

i = ++created;

if(created == 500)

System.out.println("Created 500");

}

public void finalize() {

if(!gcrun) {

// The first time finalize() is called:

gcrun = true;

System.out.println(

"Beginning to finalize after " +

created + " Chairs have been created");

}

if(i == 47) {

System.out.println(

"Finalizing Chair #47, " +

"Setting flag to stop Chair creation");

f = true;

}

finalized++;

if(finalized >= created)

System.out.println(

"All " + finalized + " finalized");

}

}

 

public class Garbage {

public static void main(String[] args) {

// As long as the flag hasn't been set,

// make Chairs and Strings:

while(!Chair.f) {

new Chair();

new String("To take up space");

}

System.out.println(

"After all Chairs have been created:\n" +

"total created = " + Chair.created +

", total finalized = " + Chair.finalized);

// Optional arguments force garbage

// collection & finalization:

if(args.length > 0) {

if(args[0].equals("gc") ||

args[0].equals("all")) {

System.out.println("gc():");

System.gc();

}

if(args[0].equals("finalize") ||

args[0].equals("all")) {

System.out.println("runFinalization():");

System.runFinalization();

}

}

System.out.println("bye!");

}

}

[albertlee]

For the above code

 

If I put this statement:

 

System.out.println("i varriable is" + i);

 

before if(i == 47) in the finalize() method, because I want to check which Chair is being finalized first, but why it turns out the program is running forever till my computer crashes?

it somehow tells that the if(i == 47) loop never be executed... why?

 

Albert