JScript Code

package jscript.engine;

import java.util.*;

public class CloneableStack extends Stack implements Cloneable {
    
    private static final long serialVersionUID = 1L;

    public Object clone() {
        CloneableStack s = new CloneableStack();
        for (Iterator it = this.iterator(); it.hasNext();) {
            Object o = it.next();
            if (o instanceof HashMap) s.push(((HashMap)o).clone());
            else s.push(o);
        }
        return s;
    }
}