Question

i have a problem as :
MyFirstClass.java

public class MyFirstClass{
  String strParam;
  MySecondClass secClass;
  //getters and setters
}

MySecondClass.java

public class MySecondClass{
  String p1Param;
  String p2Param;
  String p3Param;
  String p4Param;
//setters and getters
}

TestClass.java

public void doProcessing(MyFirstClass pObj){
  for(int i=0;i<3;i++){
  System.out.println() ;
  //###question is here
}

I want to use java reflection and call the pObj.getP**Param() methods in for loop by providing the parameters to g

Method m= cls.getMethod("getP"+(i+1)+"Param");
pObj.getSecClass.[ invokeMethod m ]

How it can be made possible.
I don’t want to use array of p*Params.

Thanks in advance.

Answer 1

Are you sure this is what you need? For me, your code seems to be a typical example of the current trend of abusing reflection for every task. Why don’t you use arrays or maps to store the properties p[0-9]+Param.

Arrays were invented to do exactly that. They provide a range of variables, indexed by numbers.