In the following code. what values could be read into number to terminate the while loop?

1. 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 500) { System.out.print(“Enter another number: “); number = keyboard.nextInt(); } a. Numbers less than 100 or greater than 500 b. Numbers in the range 100 – 499 c. Numbers in the range 100 – 500 d. The boolean condition can never be true 2. Given the following statement, which statement will write “Calvin” to the file DiskFile.txt? PrintWriter diskOut = new PrintWriter(“DiskFile.txt”); System.out.println(diskOut, “Calvin”); b. DiskFile.println(“Calvin”); PrintWriter.println(“Calvin”); diskOut.println(“Calvin”); a. C. d. 3. Assume that inputFile references a Scanner object that was used to open a file. Which of the following while loops shows the correct way to read data from the file until the end of the file is reached? a. while (inputFile != null) b. while (linputFile.EOF) C. while (inputFile.hasNext()) while (inputFile.nextLine == “”) d. {…}
4. 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(); int number = inputFile.readint(); d. int number = inputFile.nextInt(); C. 5. Which of the following statements opens a file named MyFile.txt and allows you to read data from it? a Scanner inputFile = new Scanner(“MyFile.txt”); b. File file = new File(“MyFile.txt”); Scanner inputFile = new Scanner(file); c. File Scanner = new File(“MyFile.txt”); d. PrintWriter inputFile = new PrintWriter(“MyFile.txt”);

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