A(n) ________ is any action that can be detected by a program or computer system, such as clicking a button or closing an object

Given the following declarations:

StringBuilder buf; StringBuilder buf2 = new StringBuilder(); String c = new String("test"); Which of the following is not a valid StringBuilder constructor? a. buf = new StringBuilder(); b. buf = new StringBuilder(buf2, 32); c. buf = new StringBuilder(32); d. buf = new StringBuilder(c);

What is sent to screen when the following is executed, assuming that these lines of code are embedded in a correct, complete program? Explain this behavior.

What will be an ideal response? ``` cout << "*" << setw(3) << 123456 << "*" << endl; ```