Codehs Midterm Exam Questions With Answers

CodeHs Midterm EXAM |\ |\ |\




QUESTIONS WITH ANSWERS |\ |\




What is the output of this program?
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int sum = 1;
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System.out.println("Welcome to the adding machine!"); |\ |\ |\ |\ |\




while(sum < 10) |\ |\ |\




{ |\




|\ sum += sum;
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|\ System.out.println(sum); |\




} - CORRECT ANSWERS ✔✔Welcome to the adding
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machine! {Unit 2} |\ |\




2
4
8
16


What is the output of this for loop?
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for(int i = 0; i < 100; i += 2)
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{ |\




|\ System.out.println(i); |\

,} - CORRECT ANSWERS ✔✔The even numbers from 0 to
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98, inclusive {Unit 2}
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What is the proper syntax to initialize a double called
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temperature to have the value 70.4? - CORRECT |\ |\ |\ |\ |\ |\ |\ |\



ANSWERS ✔✔double temperature = 70.4; {Unit 2} |\ |\ |\ |\ |\ |\




Which of the following is not a primitive type? - CORRECT
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ANSWERS ✔✔String {Unit 2} |\ |\ |\




What in this code segment could potentially cause a bug
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in our program?
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String myString = readLine("What is your name?");
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if (myString == "Karel")
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{ |\




|\ System.out.println("Hi Karel!"); |\ |\




} |\




else |\




{ |\




|\ System.out.println("You're not Karel!"); |\ |\ |\




} - CORRECT ANSWERS ✔✔Comparing Strings with ==
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instead of the .equals method. {Unit 2} |\ |\ |\ |\ |\ |\

, Which of these is not a logical operator? - CORRECT
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ANSWERS ✔✔++ {Unit 2} |\ |\ |\




What is the output of this for loop?
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for(int i = 10; i > 2; i -= 3) |\ |\ |\ |\ |\ |\ |\ |\ |\ |\




{ |\




|\ System.out.println(i); |\




} - CORRECT ANSWERS ✔✔10
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7
4
{Unit 2} |\




What will the values of x and y be after this code segment
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runs?
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int x = 100; int y = 100; if (x <= 100)
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{ |\




|\ if (y > 100)
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|\ { |\




|\ x = 200;
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|\ } |\




|\ else |\




|\ {