Java executes string methods with method

Java executes string methods with method Reference test assembly method public static void main (string[] args) {samplingformdto samplingform=new samplingformdto (); try{   String top = "settop (23.1)";   dotmethod (Top,samplingform); catch (Exception e) {    e.printstacktrace ();}} /** * Due to the number of coordinate points field, using reflection analysis method to solve this problem * @param methodstr method name * @param obj parameter * @throws nosuchmethodexception * @throws Securitye Xception * @throws illegalaccessexception * @throws illegalargumentexception * @throws invocationtargetexception/&nbsp ;   private void Dotmethod (String methodstr,object obj) throws Nosuchmethodexception, SecurityException, Illegalaccessexception, IllegalArgumentException, invocationtargetexception{       //Disassembly method String, Find method name         String methodname = methodstr.substring (0, Methodstr.indexof ('));        //Find parameters         float[] args = null;         String paramstr = methodstr.substring (Methodstr.indexof (') +1,methodstr.indexof (') '));         if (!paramstr.isempty ()) {            string[] tmp = PARAMSTR.SPL It (",");             args = new Float[tmp.length];             Args[0] = Float.parsefloat (tmp[0]);        }         Class C = Obj.getclass ();         Method method = C.getmethod (methodname, Float.class); Note that invoke parameters do not write wrong, your method is what type, invoke on what type parameters         Method.invoke (obj, args[0]);  
} }