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Consider the following code snippet: Employee anEmployee = new Programmer(); anEmployee.increaseSalary(2500); If the Programmer class inherits from the Employee class, and only the Employee class has an implementation of the increaseSalary method, which statement is correct?

When using a combo box, the _______ displays the name of the current selection.

Consider the following code snippet: public class Vehicle { . . . public void setVehicleClass(double numberAxles) { . . . } } public class Motorcycle extends Vehicle { . . . public void setModelName(String model) { . . . } public void setVehicleClass(double numberAxles) { . . . } } Which of the following statements is NOT correct?

Consider the following code snippet, assuming that description is a String and totalPrice is a double: System.out.printf(“%-12s%8.2f”,description,totalPrice); Which of the following statements is correct?

Consider the following code snippet: LinkedList myLList = new LinkedList(); myLList.add(“Mary”); myLList.add(“John”); myLList.add(“Sue”); ListIterator iterator = myLList.listIterator(); iterator.next(); iterator.next(); iterator.add(“Robert”); iterator.previous(); iterator.previous(); iterator.remove(); System.out.println(myLList); What will be printed when this code is executed?

The method below generates all nonempty substrings of a word passed as argument.   Assuming that the string contains no duplicate characters, select the statement to complete the method so that it prints all nonempty substrings correctly. public static void printSubstrings(String word) { if (word.length() > 0) { for (int j = 1; j

Consider the following code snippet: public interface Measurable { double getMeasure(); ____________ double sum(Measurable[] objects) { // implementation to compute the sum of the Measurable objects } } Which of the following completes the interface declaration correctly?

Suppose objects a and b are from a user-defined class that implements the Comparable interface. Which condition tests the compareTo method’s return value to determine that a will precede b when the sort method is called?

Consider the sort method shown below for selection sort: public static void sort(int[] a) { for (int i = 0; i < a.length – 1; i++) { int minPos = minimumPosition(i); swap(minPos, i); } } Suppose we modify the loop condition to read i < a.length. What would be the result?

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); . . . }