Answer:
The languages C++, Java, Python are Object Oriented Programming languages. What this means is that we create classes and then instantiate those classes. In C++ and Java, we use the new operator to instantiate the classes. So, if we want to display some data when we try to print the instance just like we print the variables of data types like int, double, string etc, we need to define what we need to display. It is because, class are just like data types like int, double etc. But as they are defined by the developer according to his/her needs, so the developer has to define what to print when they are printed.
Answer:
The function is as follows:
def concList(aList):
retList = ""
for i in aList:
if(str(i).isdigit()):
retList+=str(i)
else:
retList = "Not digits"
break;
return retList
Explanation:
This defines the function
def concList(aList):
This initializes the return string to an empty string
retList = ""
This iterates through aList
for i in aList:
This converts each element of the list to an empty list and checks if the string is digit
if(str(i).isdigit()):
If yes, the element is concatenated
retList+=str(i)
If otherwise
else:
The return string is set to "No digits"
retList = "Not digits"
And the loop is exited
break;
This returns the return string
return retList
Go onto their website and download it.
Pigment: Ground up solids that contain color the color in paint.
Vehicle: Adjusts the viscosity of the paint.
Binder: Liquid substance used in paint and other media to bind particles of pigment together
