D zero or more times at the beginning of each

d. Zero or more times, at the beginning of each iteration.
e. Zero or more times, at the end of each iteration.
The correct answer is: At least once, at the beginning of each iteration.
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Your answer is incorrect.
See Section 3.4.1 of Eck (2014).
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Consider the following block of Java code. How many times will it output "Hello"?
for (int i = 1; i < 10; i++)
{
System.out.println("Hello");
}
Select one:
3 Feedback
Your answer is correct.
Notice that the condition is "i < 10", not "i <= 10". See Section 3.4.1 of Eck (2014).

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Assume "test" is a boolean variable. Which of the following expressions is equivalent to
"test == true"?
Select one:
4
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See Section 3.3.2 of Eck (2014).
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Consider the following block of Java code. How many times will it output "Hello"?
for (int i = 1; i > 10; i++) ;
{
System.out.println("Hello");
}
Select one:
5

Feedback
Your answer is correct.
Notice the extra ";" at the end of the for loop. The loop iterates 9 times, but it does not output
anything. Then the separate code block runs once and outputs "Hello". See Sections 3.1.1 and 3.4.1
of Eck (2014).
The correct answer is: 1
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What is output by the following Java program?
class Compute {
static int compute() { return 42; }
static int compute(int i) { return i+1; }
public static void main(String[] args) {
System.out.println(compute(compute()));
}
}
Select one:
1
a. 0
b. 1
c. 2
d. 42
e. 43

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Your answer is correct.
The inner call to "compute()" has no argument, so it uses the first definition of the method, which
returns the value 42. This 42 becomes the argument to the outer call. Because that call does have
an argument, it uses the second definition of "compute". This method then returns 42+1, or 43. See
Section 4.3.3 of Eck (2014).
The correct answer is: 43
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What is output by the following Java program?
class Zap {
static boolean zap() { return true; }
static int zap(boolean x) { return 0; }
static double zap(int x) { return 0.5; }
static String zap(double x) { return "Zap!"; }
static boolean zap(String x) { return false; }
public static void main(String[] args) {
System.out.println(zap(zap(zap(zap()))));
}
}
Select one:
2

argument, so it uses the fourth method definition, which returns the String "Zap!" See Section 4.3.3
of Eck (2014).