Invoking methods via java.lang.Method.invoke().

Question

I need to invoke the getter methods that I have defined for a Trade object passed as an argument.
I am getting the excepion : java.lang.IIlegalArgumentException: wrong number of arguments.
This is the first time I am invoking methods this way.
Am I correct to assume that methods on an object can be invoked in this way?
How can I invoke the getter methods of the trade object.
Please help.
public void displayData(Trade trade){
     Method[] m = trade.getClass().getMethods();
     for(int i=0;i<m.length;i++){
          if(m.getName().startsWith("get")){
                    try {
                         m[i].invoke(trade, new Trade[] { trade });
                    } catch (IllegalArgumentException e) {
                         e.printStackTrace();
                    } catch (IllegalAccessException e) {
                         e.printStackTrace();
                    } catch (InvocationTargetException e) {
                         e.printStackTrace();

Answer 1

bhuru_luthria wrote:
The getter methods of the trade object require no arguments.
The three getter methods of the trade object are:
getTradeId();
getProductId()
getReferenceId()Read the Javadoc; use it like this:
m.invoke(trade);