c++

3. COMPLETE the code in all the yellow boxes given below as per instructions. class 01 { float f; public: 010); 010); void assign(float); // Write the prototype to return the sum of the values of four objects. }; //Write the function heading & a COMPLETE method "SUM" to return the sum of the values of four objects. main() { // Write a CALLING statement to "SUM" method. Make sure that all the variables parameters in the calling statement are valid before the method is called. }