A tree in which a particular vertex is designated as a root is called a(n) ____ tree.

Which of the following statements is false?

a. Java SE 8 introduces a new Completable Future class (package java.util.concurrent), which implements the Future interface and enables you to asynchronously execute Runnables that perform tasks or Suppliers that return values. b. CompletableFuture static method supplyAsync asynchronously executes a Supplier task that returns a value. c. CompletableFuture static method runAsync asynchronously executes a Runnable task that does not return a result. d. CompletableFuture method get is a blocking method—it causes the calling thread to run until the asynchronous task completes and returns its results.

A _________ is used to fill a shape with color using a Graphics object.

a) painter b) brush c) paint bucket d) marker