NAU ISM 220 BBLearn Exam #2 – Flashcards
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The C# syntax for 'is not equal to' is ________.
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!=
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if (amount > 1000) result = 1; else if (amount > 500) result = 2; else if (amount > 100) result = 3; else result = 4; What is stored in result when amount is equal to 12000?
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1
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The equality operator in C# is ____.
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==
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Two equal symbol characters == are used as the assignment operator.
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False
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What will the console display after this code is executed? string college = "NAU"; if (college = "NAU") { Console.WriteLine("Go Jacks!"); } else { Console.WriteLine("Go Team!"); }
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The code will produce a syntax error
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if (examScore > 89) grade = 'A'; Console.WriteLine("Excellent"); Using the code snippet above, when does Excellent get displayed?
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every time the program is run
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if (a > 10) if (b > 10) if (c > 10) result = 1; else if (b > 100) result = 2; else result = 3; else result = 4; else result = 5; What is stored in result when a, b and c are equal to 200?
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1
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The ternary operator ( ? : ) provides another way to express a simple if...else selection statement.
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True
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The , = are called the logical operators of the language.
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False
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An exclamation point followed by a single equal symbol (!=) represents not equal in C#.
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True
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An interpretation of the while statement is "while the condition is true, perform statement(s)".
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True
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int sum = 0; int number = 1; while (number < 100) { sum = sum + number; } The program statements above produce an infinite loop.
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True
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The ________ keyword exits a loop.
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Break
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int loopVariable = 0; do { Console.WriteLine("Count = {0:}", ++loopVariable); }while (loopVariable < 5); What will be printed during the first iteration through the loop?
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1
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for (int i = 0; i < 5; i++) Console.Write(i + "t"); Given the code snippet above, how many times will the loop body be executed?
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5
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The item that is tested in a while loop is called the _______.
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Expression
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With nested loops, the outermost loop is always totally completed before the innermost loop is executed.
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False
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int sum = 0; int number = 0; while (number < 10) { sum = sum + number; Console.WriteLine(sum); } The statement above prints the values of 0 through 9 on separate lines.
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False
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Multi-dimensional arrays are called ________ in mathematics.
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Matrices
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To declare and instantiate memory for 4 exam scores that range in value from 0 to 100, the following declaration could be made ____.
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int [ ] examScore = new examScore[4];
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int [ ] anArray = new int [10]; int [ ] anotherArray = {6, 7, 4, 5, 6, 2, 3, 5, 9, 1}; How could all values of anotherArray be totaled?
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foreach(int val in anotherArray) total += val;
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If you do not know how many entries will be stored with the array, you could dimension it ____.
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large enough to hold the maximum number of entries
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int [ ] anArray = new int [10]; int [ ] anotherArray = {6, 7, 4, 5, 6, 2, 3, 5, 9, 1}; for (int i = 0; i < anotherArray.Length; i++) total += i; Using the above declaration along with the for loop, what is stored in total after the program statements are executed?
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45
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int [ ] score = {86, 66, 76, 92, 95, 88}; for (int i = score.Length-1; i > -1; i--) { total += score[i]; } Using the declaration above for score, what is added to total during the first iteration?
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88
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You can declare an array without dimensioning its size, but the size must be determined before you can access it.
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True
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double [ ] price = new double [ ] {3, 2.2, 4.7, 6.1, 4}; Looking above, the value of price.Length is 5.
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True
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double [ ] price = new double [ ] {3, 2.2, 4.7, 6.1, 4}; With the declaration above, price[5] generates a runtime error.
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True
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The type used in the foreach expression must match the array type.
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True
