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Insert the missing code in the following code fragment. This fragment is intended to read an input file named dataIn.txt. public static void main(String[] args) __________________ { String inputFileName = “dataIn.txt”; File inputFile = new File(inputFileName); Scanner in = new Scanner(inputFile); . . . }

Consider the Counter class below. public class Counter { public int count = 0; public int getCount() { return count; } public void increment() { count++; } } Using the class above and the variables declared below, what is the value of num1.equals(num2)? Counter num1 = new Counter(); Counter num2 = num1;

Which of the following statements about interfaces is true?

Insert the missing code in the following code fragment. This fragment is intended to read an input file named dataIn.txt. public static void main(String[] args) __________________ { String inputFileName = “dataIn.txt”; File inputFile = new File(inputFileName); Scanner in = new Scanner(inputFile); . . . }

Consider the method below, which prints the digits of an arbitrary positive integer in reverse order, one digit per line.  The method should print the last digit first. Then, it should recursively print the integer obtained by removing the last digit. Select the statements that should be used to complete the method. public static void printReverse(int value) { if (value > 0) { _____________________ // print last digit _____________________ // recursive call to print value without last digit } }

Which of the following is not a visual component?

Which of the following statements about exception reporting is true?

When does quicksort’s worst-case run-time behavior occur? I    when the data is randomly initialized in the array II   when the data is in ascending order III  when the data is in descending order

To process mouse events, you need to define a class that implements the ____ interface.

Which return value of the JFileChooser object’s showOpenDialog method indicates that a file was chosen by the user at run time?