How to invoke a class at run-time for primitive data types?

Question

Hi,
I am trying to invoke classes at run-time.
I am using Class.forName("className") for that where the "className" is also obtained at run-time .
The problem I am getting is when the "className" is "int" or "char" etc. the call to Class.forName("int") etc. fails giving ClassNotFound error. It works fine for "className" is "java.lang.String" or "java.lang.Integer" etc.
How can I correct this?
thanks in advance-
kg

Answer 1

Hi,
Thanks all for the valuable inputs.
I have created a hashtable of primitive data types in the form of "int" as key and "Integer.TYPE" as the object in that element of the hashtable.
Now there is another problem I am facing and that is of 'Casting at run-time'.
Problem is there when the Database type is 'NUMBER' which returns me a "java.lang.BigDecimal" when I do a ResultSet.getObject("XXX") for that whereas the method in the javabean expects an "int" type.
This causes "java.lang.IllegalArgumentException: argument type mismatch"
So I want to cast it at runtime. How can I do it?
Here is the code I am trying (which generates the above exception)
public static void setBeanField(Class pCls,Object pObj,String pMethodName ,Object pColumnValue,Class
pColumnTypeClass){
try{
if(pColumnValue!=null){
Class[] paramTypes = new Class[]{pColumnTypeClass};
Object[] args = new Object[]{pColumnValue};
Method meth = pCls.getMethod(pMethodName,paramTypes);
meth.invoke(pObj,args);
}catch(Exception e){
System.out.println("Exception in TestInrospection.setBeanField " + e);
thanks in advance-
kg