Answer:
<exception> header provides functions for exception handling in c++.
Explanation:
Exceptions gives a way to respond to exceptional conditions (like runtime errors) in codes by transferring the control to other special functions called handlers.
Since try,catch and throw can work in the iostream header file.To use more functions like unexpected,current_exception,rethrow_exception we need exception header file.
Your answer is a to your question
**Formula
If u want to calculate voltage:
Current x Resistance
so the answer is D
Current:
Voltage ÷ Resistance
Resistance:
Voltage ÷ Current
Answer:
c. StringBuilder
Explanation:
An alternative to the String class would be the StringBuilder Class. This class uses Strings as objects and allows you to mix and match different strings as well as adding, removing, implementing, and modifying strings themselves as though they were similar to an array. Unlike the string class StringBuilder allows you to modify and work with a combination of strings in the same piece of data as opposed to having various objects and copying pieces which would take up more memory.
