In: Computer Science
When a variable is declared, it may also be initialized (given its initial – meaning first – value) using the assignment operator (an equals sign). What is the initial value of cupSize?
THOUGH THIS QUESTION IS INCOMPLETE, I AM PROVIDING THE SOLUTION AS PER DIFFERENT PROGRAMMING LANGUAGES:
1. C/C++
C/C++ does not initialize most variables to a default value (mostly zero) automatically. When a variable is declared , it is assigned a memory location by the compiler and the default value of that variable is a garbage or junk value.
Example;
int A;
cout<<A;
Or
printf("%d",A);
This will display any garbage value in A
2. Python
In Python, A variable needs some inital value otherwise "name is not defined" error is displayed.
Example:
A
print(A)
will cause name not defined error
OUTPUT WILL BE: NameError: name 'A' is not defined
3. JAVA
In Java, the program will run and throw a runtime error as follows:
int a;
System.out.print(a);
Following error is displayed once the program is run:
Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - variable a might not have been initialized