________ allows multiple users to work on the same workbook at the same time

What is a persona useful for during development?

a. Thinking about your target users’ problems from their perspective b. Attaching a name, gender, and age to an image of a possible user c. Building a class model for your project d. Entering data into a SQLite database

Given the following declarations:

StringBuilder buffer = new StringBuilder(“Testing Testing”); buffer.setLength(7); buffer.ensureCapacity(5); Which of the following is true? a. buffer has capacity 5. b. buffer has capacity 31. c. buffer has content “Testin”. d. buffer has length 15.