During execution of code inside a "synchronized" statement, threads other than the executing one are prevented from:

StringBuilder is Thread-safe.

A java.util.ConcurrentModificationException can be thrown in a mono-threaded application.

Java annotations. Which is not a predefined annotation type?

A subclass's constructor will always implicitly call its superclass's default, no-argument constructor except when:

Which statement is true?

Division by zero is a ________ error that is caught when the program executes

Comparing a variable to a list of values in an array is a process called ____ an array.

Before entering a loop, the first input statement, or ____, is retrieved.

A for loop provides a convenient way to create a(n) ____ loop.

A class that represents the most general entity in an inheritance hierarchy is called a/an ____.