CS 160 Exam 2 questions with answers

CS 160 Exam 2 questions with answers
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How many iterations (if any)will the following loop make?
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for(int a = 0; a < 4; a++) {} - CORRECT ANSWERS ✔✔4
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How many iterations (if any)will the following loop make?
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for(int b = 5; b >= 0; b--) {} - CORRECT ANSWERS ✔✔6
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How many iterations (if any)will the following loop make?
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for(int c = 25; c > 45; c+= 5) {} - CORRECT ANSWERS
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✔✔0


How many iterations (if any)will the following loop make?
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for (int d = 0; d <= 17; d += 3) {} - CORRECT ANSWERS
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✔✔6


while (true) {} - CORRECT ANSWERS ✔✔infinite
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When is it better or preferable to use a while loop instead
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of a for loop? - CORRECT ANSWERS ✔✔It is better to use a
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while loop when the number of iterations is not known in
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advance, such as when dealing with random numbers or |\ |\ |\ |\ |\ |\ |\ |\ |\



type safe user input.
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, When is it better or preferable to use a for loop instead of
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a while loop? - CORRECT ANSWERS ✔✔It is better to use a
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for loop when the number of iterations is known in
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advance, such as when processing Strings, lists, or
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dealing with input of a fixed size. |\ |\ |\ |\ |\ |\




Write some selection statements for a number guessing
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game that can help determine how a user inputted guess
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is related to the hidden number. As a part of your solution
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you can use two int variables with identifiers guess and
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secretNumber, which you can assume have been |\ |\ |\ |\ |\ |\ |\



previously declared and initialized. Your code should print
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out the message "Too high", "Too low", or "Correct" based
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on how the guess is related to the secret number. You do
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not need to worry about reading input or handling
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multiple guesses. - CORRECT ANSWERS ✔✔if(guess >
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secretNumber) { |\




|\ System.out.println("Too high"); |\ |\




}
else if (guess < secretNumber) {
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|\ System.out.println("Too low"); |\ |\




}
else { |\




|\ System.out.rpintln("Correct"); |\




}