Array error. w/ Class

Using Arduino Programming Questions
#1 
class PlantClass{
  
  private: //public otherwise error: test::test private
  float pH;
  int plant_pos;
  String plant_type;
  
public:
  PlantClass(){ //the constructor
  pH=-1;
  plant_pos=-1;
  plant_type="-1";
  
  }
  PlantClass(float temppH, int tempPlantPos,String tempType)//Overloaded constructor
  {
    pH=temppH;
    plant_pos=tempPlantPos;
    plant_type=tempType;
  }
  void setpH(float temp){pH=temp;}
  float getpH(){return pH;}
  void setPlantPos(int temp) {plant_pos=temp;}
  int getPlantPos(){return plant_pos;}
  void setPlantType(String temp){plant_type=temp;}
  
}; 

#include <Wprogram.h>
//Relay board 1
const int pump_pin=      0;
const int water_recirc=  1;
const int light_assm_1=  2;
const int light_assm_2=  3;
const int heater=        4;
const int inj_food=      5;
const int inj_ph_m=      6;
const int inj_ph_p=      7;
//Relay board 2
const int inj_p1=        8;
const int inj_p2=        9;
const int inj_p3=        10;
const int inj_p4=        11;
PlantClass test_array[4];

PlantClass p1=PlantClass();
PlantClass p2= PlantClass(5.5,0,"Test");
test_array[0]=PlantClass();
void setup()
{
  Serial.begin(9600);
 pinMode(pump_pin,OUTPUT);
 pinMode(water_recirc,OUTPUT); 
 pinMode(light_assm_1,OUTPUT); 
 pinMode(light_assm_2,OUTPUT); 
 pinMode(heater,OUTPUT); 
 pinMode(inj_food,OUTPUT); 
 pinMode(inj_ph_m,OUTPUT); 
 pinMode(inj_ph_p,OUTPUT); 
 pinMode(inj_p1,OUTPUT); 
 pinMode(inj_p2,OUTPUT); 
 pinMode(inj_p3,OUTPUT); 
 pinMode(inj_p4,OUTPUT); 

}
void loop()
{


}

PlantClass p1=PlantClass();
PlantClass p2= PlantClass(5.5,0,“Test”);
Both work

Why does “test_array[0]=PlantClass();” not work?

functional:48: error: expected constructor, destructor, or type conversion before ‘=’ token

#2

Your statement:

test_array[0]=PlantClass();

is not a data definition, but rather an executable expression statement. Try moving that statement into setup().

#3

you can also just delete the line.

The default/empty constructor is implicitly called for each item during initialization of the array: **PlantClass test_array[4];**.

#4

econjack:
Try moving that statement into setup().

econjack, I tried your suggestion of moving it into the setup. That fixed my problem :slight_smile: Thanks a bunch!
pYro_65 Thank you very much.

#5