Training Video 6 - Reflections API

xls_reader.java will help you read the keywords from xlsx file

This means the String path which is passed on constructor will be for String variable x. And after creating object of Xls_reader class we will use methods from Xls_Reader.Java to read all keywords?

yes.

I tried the following code to read Xlsx using Reflections and then call the corresponding methods :


import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;


public class Practice {

public static void main(String[] args) throws NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
Xls_Reader dbt=new Xls_Reader("D:\\testing\\Data.xlsx");
for(int i=2;i<=dbt.getRowCount("Record");i++){
for(int j=0;j<dbt.getColumnCount("Record");j++){
String a=dbt.getCellData("Record", j,i);


Method method = Practice.class.getMethod(a);
method.invoke(method);
}
}
}


public static void Sankalp(){
System.out.println("hello");

}
public static void Mumbai(){

System.out.println("hi");
}
}

Although it is calling the 2 functions defined, I am getting the following Exception :

hello
hi
Exception in thread "main" java.lang.NoSuchMethodException: Practice.()
at java.lang.Class.getMethod(Unknown Source)
at Practice.main(Practice.java:15)

Please help

send me data.xlsx also

Data.xlsx mailed to you

attach it here