Question

How to reduce this usiong reflection

private static Object determineDataType(final String value, String dataType)
{
    System.out.println("Name--->>" + dataType);
    if(dataType.equals(Boolean.class.getName()))
    {
       return new Boolean(value);
    }
    else if(dataType.equals(String.class.getName()))
    {
        return new String(value);
    }
    else if(dataType.equals(Character.class.getName()))
    {
        return new String(value);
    }
    else if(dataType.equals(Byte.class.getName()))
    {
        return new Byte(value);
    }
    else if(dataType.equals(Short.class.getName()))
    {
        return new Short(value);
    }
    else if(dataType.equals(Integer.class.getName()))
    {
        return new Integer(value);
    }
    else if(dataType.equals(Long.class.getName()))
    {
        return new Long(value);
    }
    else if(dataType.equals(Float.class.getName()))
    {
        return  new Float(value);
    }
    else if(dataType.equals(Double.class.getName()))
    {
        return  new Double(value);
    }
    //defualt return the String value, Lets' AOPI do the Validation
    return new String(value);
}

Answer 1

You can use Class.forName and method getConstructor (here is an example):

Object instance = Class.forName(dataType)
         .getConstructor(new Class[] {String.class})
         .newInstance(new Object[]{value});

By the way it will not work for Character and Boolean because you make a special treatment for them.