Is it possible to pass a string representing a class name in java as an arg

Hi, this is probably a bit of a stupid question, but one that has me quite confused all the same!
Is it possible to pass a string or class name etc. representing a type of class in java, to a method so that instead of having to redefine a method with say the following args:
public SolarPanels[] bestPVPanels(int budget, int percent) {
HashMap<Integer, SolarPanels> panelsMap = new HashMap<Integer, SolarPanels>();
}As at present needing to create a methods bestWindTurbine() and many others exactly the same, but for the type, I would instead like to be able to create a method like:
public Object[] bestRenewable(int budget, int percent, String aClassName) {
HashMap<Integer, aClassName > renewableMap = new HashMap<Integer, aClassName >();
}But cant sus how to do this as passing a String is off course going to cause problems unless its it possible to cast a string to a class name, any help or advance would be much appreciated.
Thanks in advance
Pat Nevin

pNev wrote:
But cant sus how to do this as passing a String is off course going to cause problems unless its it possible to cast a string to a class nameIt's not. You can do things like
Class.forName(classNameInString);But that will only return a Class object.
And as Java generics are erased at runtime, passing the class name to the method is useless as it is too late to use it anyways.
Ah, Peter's way is what I was thinking of. Too early in the morning.
Edited by: Kayaman on 23.6.2010 10:02

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        try {
            DriverManager.registerDriver(new OracleDriver());
            Connection connection = DriverManager.getConnection(
                aJDBC,
            PreparedStatement stat = connection
                .prepareStatement("select image from aa_blob where id="+aId);
            ResultSet rs = stat.executeQuery();
            if (rs.next()) {
                vBlob = (BLOB) rs.getBlob(1);
                System.out.println("Taille 1 : "+vBlob.length());
            connection.close();
        } catch (Exception e) {
            e.printStackTrace();
        return vBlob;
    public static void main(String[] args) throws Exception {
        BLOB vBlob = getBLOB(1, "jdbc:oracle:thin:@vdn-ceg5:1521:DEV5");
        System.out.println("Taille 2 : "+vBlob.getLength());
}When I run the main method, I have :
Taille 1 : 150260
Taille 2 : 86
!!!!????!!!!????

Is it possible to pass a string representing a class name in java as an arg

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