<u>Central processing unit (CPU)</u>

- <u>CPU performs basic arithmetic, logic, controlling, and input/output (I/O) operations specified by the instructions in the program.</u>
Answer:
Delete and block the email. It is obviously a scam.
Add-on:
I hope this helped you at all.
Answer:
The answer to this question is option "d".
Explanation:
In the given question option d is correct because variable-length argument is a new feature in J2SE 5.0 which stands for java 2 standard edition and 5.0 is the version name. It is the variable-length argument lists. A coder can create functions that uses a function to receive several parameter that is not specified. An argument type followed by an ellipsis(...) in the parameter list of a method means that a fixed number of arguments of that particular type is obtained by the method. and other options are not correct that can be given as:
- In option a, we do not need to use the string the variable-length argument list. That's why it is wrong.
- The option b and c are all wrong because in the last parameter the variable-length argument list is used.
That's why the answer to this question is the option "d".
<h2>Yes the swap method exchange parameter values if passed by reference or the value gets changed inside the function.</h2>
Explanation:
Since the program is not given, I will try to guide you about the mode of parameters.
The meaning of swap is interchanging the values. It can be done by using temporary variable or without using it (if the values are integers).
While passing the parameters, there are two ways, call by value/pass by value and call by reference/ pass by reference.
If call by value, then the value gets swapped only inside the function and will not reflected in the calling portion. Call by reference is other way round.