Java Chapter 5
Order by
30 terms
Terms | Definitions |
|---|---|
 A loop that repeats a specific number of times is known as a(n) _____________. | Count-controlled loop |
| What will be the value of x after the following code is executed? int x, y = 15; x = y--; | 15 |
| This is a value that signals when the end of a list of values has been reached. | Sentinel |
| This type of loop will always be executed at least once. | Post-test loop |
| Which of the following are pre-test loops: | while, for |
| What will be the value of x after the following code is executed? int x = 10; while (x < 100) | 100 |
| In the following code, what values could be read into number to terminate the while loop? Scanner keyboard = new Scanner(System.in); System.out.print("Enter a number: "); int number = keyboard.nextInt(); while (number < 100 && number > 500) { System.out.print("Enter another number: "); number = keyboard.nextInt(); } | The boolean condition can never be true |
| How many times will the following do-while loop be executed? int x = 11; do { x += 20; } while (x > 100); | 1 |
| Which of the following will open a file named MyFile.txt and allow you to append data to its existing contents? A) FileWriter fwriter = new FileWriter("MyFile.txt"); PrintWriter outFile = new PrintWriter(fwriter); B) FileWriter fwriter = new FileWriter("MyFile.txt", true); PrintWriter outFile = new PrintWriter(fwriter); C) PrintWriter outfile = new PrintWriter("MyFile.txt", true); D) PrintWriter outfile = new PrintWriter(true, "MyFile.txt"); | B) FileWriter fwriter = new FileWriter("MyFile.txt", true); PrintWriter outFile = new PrintWriter(fwriter); |
| What will be printed after the following code is executed? for (int number = 5; number <= 15; number +=3) System.out.print(number + ", "); | 5, 8, 11, 14 |
| This type of loop is ideal in situations where the exact number of iterations is known. | for loop |
| What will be the value of x after the following code is executed? int x = 10; do { x *= 20; } while (x < 5); | 200 |
| You can use this method to determine whether a file exists. | The File class's exists method |
| This is an item that separates other items. | Delimiter |
| How many times will the following for loop be executed? for (int count = 10; count <= 21; count++) System.out.println("Java is great!!!"); | 12 |
| In all but rare cases, loops must contain within themselves | A way to terminate |
| Assuming that inputFile references a Scanner object that was used to open a file, which of the following statements will read an int from the file? A) int number = inputFile.next(); B) int number = inputFile.integer(); C) int number = inputFile.readInt(); D) int number = inputFile.nextInt(); | D) int number = inputFile.nextInt(); |
| If a loop does not contain within itself a way to terminate, it is called | An infinite loop |
| A loop that executes as long as a particular condition exists is called a(n) _____. | Conditional loop |
| A sentinel value ____________ and signals that there are no more values to be entered. | Is a special value that cannot be mistaken as a member of the list |
| This is a sum of numbers that accumulates with each iteration of a loop. | Running total |
| What will be the value of x after the following code is executed? int x = 10, y = 20; while (y < 100) { x += y; y += 20; } | 210 |
| In the following code, what values could be read into number to terminate the while loop? Scanner keyboard = new Scanner(System.in); System.out.print("Enter a number: "); int number = keyboard.nextInt(); while (number < 100 || number > 500) { System.out.print("Enter another number: "); number = keyboard.nextInt(); } | Numbers in the range 100 through 500 |
| When you open a file with the PrintWriter class, the class can potentially throw an IOException True or False | True |
| True or False The do-while loop must be terminated with a semicolon. | True |
| True or False In a for loop, the control variable can only be incremented. | False |
| True or False\ When the break statement is encountered in a loop, all the statements in the body of the loop that appear after it are ignored, and the loop prepares for the next iteration. | False |
| True or False When you pass the name of a fi le to the PrintWriter constructor, and the file already exists, it will be erased and a new empty file with the same name will be created. | True |
| True or False The do-while loop is a pre-test loop. | False |
| True or False The do-while loop is a pre-test loop. | False |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.