Question 1. What must be used to separate each section of a for statement?

1.a. Commas

1.b. Semicolons

1.c. Off-duty police officers

Commas are used to separate things within a section, but semi-colons separate sections.

Question 2. Which statement causes a program to go back to the statement that began a loop and then keep going from there?

2.a. Continue

2.b. Next

2.c. Skip

The break statement ends a loop entirely, and continue skips to the next go-round of the loop.

Question 3. Which loop statement in Java always will run at least once?

3.a. for

3.b. do-while

3.c. while

The while conditional isn't evaluated until after the first pass through the loop.