Answer:
You absolutely should throw an exception from a constructor if you're unable to create a valid object. This allows you to provide proper invariants in your class. ... Throw an exception if you're unable to initialize the object in the constructor, one example are illegal arguments.
Explanation:
Answer:
Go to the profile page and click on the profile image
There are two common types for data access or retrieval
1. Sequential access is the main access mode only in batch systems, whereas files are used and updated at regular intervals.
2. Direct access - on-line processing requires direct access, whereby a record can be accessed without accessing the records between it and beginning of the file.
Answer:
?
Explanation:
It is the "?" character. When we type in the ? in the regular expression, then it means that it will be replaced by a single character. And when we type *, then we mean there can be multiple, and any number of characters. And this is what is meant by these two wildcard characters. Hence, the correct option here is ?.
Example: ?op can be top, pop, etc, and we can see here that, ? is replaced by only one character each time.
A. because everyone basically has seen it..
