CS 160 EXAM 1 (TRUE/FALSE)
F
Assignment operators appear at the top of the hierarchy in the operator precedence table
T
Both out and ref parameter types cause a method to refer to the same variable that was passed into the method
T
C# offers both call by value and call by reference parameters. Call by value is the default type.
T
Constructors are methods
T
In order to use the MessageBox.Show() method, you need to not only add a reference to the namespace which includes the class, but also add a using directive to the program statements
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Methods can be defined globally outside of a class in C#
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Scope refers to the region in the program in which you can use the variable
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The do...while loop can be used to implement a counter-controlled, sentinel-controlled, or state-controlled loop
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The result of "123" + "321" is "123321"
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The rule for lining up, or matching, elses is that the else is matched with the first if, from top to bottom
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The value $78,888.90 is printed as output when the {0:c} format specifier from the program with calculator results.
T
When you desk check the algorithm, you can compare the results obtained from the program with calculator results
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With nested loops, the outermost loop is always totally completed before the innermost loop is executed.
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Without incrementing the counter used in the conditional expression with counter controlled loops, the loop would go indefinetely
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in C#, both the break and default are optional entries found with a switch statement
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int sum = 0; int number = 0; while( number < 10) { sum = sum + number; Console.WriteLine(sum); } The statement above prints the value of 0 through 9 on separate lines.
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s = num.Next(7); The statement above produces seven random numbers.
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the conditional expression true || false produces false
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A semicolon is placed on the end of a method heading following the parameter list.
F
A standard convention used by C# programmers is to use the Pascal case style for class, data member identifiers, and method identifiers.
F
A state-controlled loop should be designed when you know the number of times the statements must be executed
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An advantage of sentinel-controlled loops s you do not need to know how many times the loop will be performed.
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If aNumber is declared to be of type int wit ha value of 50, Console.out.WriteLine(aNumber++); displays 51.
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In C# curly braces must be added to surround all loop bodies.
T
In C#, the && and || operators are also called the short-circuiting logical operators
T
Methods that use the static modifier are called class methods
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The do...while statement is a posttest loop, which means that the conditional expression is tested before any of the statements in the body of the loop are performed
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Unlike the sentinel-controlled loop, the variable used with a state controlled loop differs from the variable used to store the data that is being processed
F
When you have a single variable being tested for equality against four or more values, a one-way selection statement is the most appropriate type of conditional expression to use
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You often need to so a "prime the read" for counter controlled loops which means that you would input a value before going into the body of the loop
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a class is an instance of an object
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a class named River will have a constructor named River
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a constructor is used to instantiate a class from an object
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a sentinel controlled is also called a flag-controlled loop.
F
if a numeric variable is being changed by a consistent amount with each iteration through the loop, the while statement is the best choice constructs
