Regarding memory utilization

Question

hi all,
i want to know memory utilization of following code,
when i am creating an new object every time
and when i am using refrence of the object.
panel2.add(Box.createRigidArea(new Dimension(70, 20)));
panel2.add(Box.createRigidArea(new Dimension(70, 20)));
panel2.add(Box.createRigidArea(new Dimension(70, 20)));
panel2.add(Box.createRigidArea(new Dimension(70, 20)));
Dimension d = new Dimension(70,20);
panel2.add(Box.createRigidArea(d));
panel2.add(Box.createRigidArea(d));
panel2.add(Box.createRigidArea(d));
panel2.add(Box.createRigidArea(d));thanks in advance
daya

Answer 1

hello,
why the following code giving same memory in both the cases?
import java.awt.Dimension;
import javax.swing.Box;
import javax.swing.JPanel;
public class MemoryUtili {
     public static void main (String s[]) {
          Dimension dim = new Dimension(70, 20);
          JPanel panel2 = new JPanel();
          Runtime r = Runtime.getRuntime();
          long FreeMem = 0, TotalMem = 0, usedMem = 0, maxMem = 0;
          FreeMem       = r.freeMemory();
          TotalMem  = r.totalMemory();
          usedMem   = TotalMem - FreeMem;
          maxMem        = r.maxMemory();
          System.out.println(     "\nMax Memory   : " + maxMem +
                                  "\nTotal Memory : " + TotalMem +
                                   "\nUsed Memory  : " + usedMem +
                                   "\nFree Memory  : " + FreeMem );
          panel2.add(Box.createRigidArea(dim));
          panel2.add(Box.createRigidArea(dim));
          panel2.add(Box.createRigidArea(dim));
          panel2.add(Box.createRigidArea(dim));
          r = Runtime.getRuntime();
          FreeMem       = r.freeMemory();
          usedMem   = TotalMem - FreeMem;
          System.out.println(     "\nUsed Memory  : " + usedMem +
                                   "\nFree Memory  : " + FreeMem );
          panel2.add(Box.createRigidArea(new Dimension(70, 20)));
          panel2.add(Box.createRigidArea(new Dimension(70, 20)));
          panel2.add(Box.createRigidArea(new Dimension(70, 20)));
          panel2.add(Box.createRigidArea(new Dimension(70, 20)));
          r = Runtime.getRuntime();
          FreeMem       = r.freeMemory();
          usedMem   = TotalMem - FreeMem;
          System.out.println(     "\nUsed Memory  : " + usedMem +
                                   "\nFree Memory  : " + FreeMem );
}