I'm assuming you are referring to Excel. There are a few ways to add A1 and B1.
First you could use '=SUM(A1+B1)'
You could also use '=SUM(A1:B1)' which adds the values of all the cells between A1 and B1, but since they are next to each other, this would work.
You could also use '=SUM(A1,B1)' where you list all the cells you want to add with commas in between.
Answer:
→A desktop computer is designed mainly as a single user computer to solve the tasks of the end user.
→ A laptop is a personal computer with a touchpad used to move a cursor on the screen.
Explanation:
I don't see any error on your code, everything is well written and simple. Except trying putting PUBLIC on your Class displayer. If you encounter the same problem again try to rebuild your whole code and try to recompile the whole code. Even try restarting your personal computer.
Answer:
Occurs when a specific language construct was expected, but something else was provided.
