17. a software engineer is designing a new program. He decides to first to find all the classes that he needs, and how they will interact with each other. he then defines what methods will be needed in each class. Later, he writes those methods. This design process is an example of: I. top-down design II. bottom-up design III. Object-oriented programming

A. I and II only B. I and III only C. II and III only D. I,II, and III E. II only

22. how many columns are in the array?

char [][] array 1 = new char [15][10]; A. 0 B. 2 C. 10 D. 15

23. What is the value of vals[1][2]

double [][] vals = {{1.1,1.3,1.5} {3.1,3.3,3.5} {5.1,5.3,5.5} {7.1,7.3,7.5}

A. 1.3 B. 3.3 C. 3.5 D. 5.3