Author: Anonymous

Given the following code snippet: public static int newCalc(int n) { if (n < 0) { return -1; } else if (n < 10) { return n; } else { return (n % 10) + newCalc(n / 10); } } What value will be returned when this code is executed with a call to newCalc(15)?

Which of the following can potentially be changed by a Java method?

Consider the following class hierarchy: public class Vehicle { private String type; public Vehicle(String type) { this.type = type; } public String displayInfo() { return type; } } public class LandVehicle extends Vehicle { public LandVehicle(String type) { super(type); } } public class Auto extends LandVehicle { public Auto(String type) { _________; } } Complete the code in the Auto class constructor to store the type data.

Complete the code for the myFactorial recursive method shown below, which is intended to compute the factorial of the value passed to the method: public int myFactorial(int anInteger) { _____________________________ { return 1; } else { return(anInteger * myFactorial(anInteger – 1)); } }

Consider the following code snippet: public class Vehicle { . . . public void setVehicleAttributes() { . . . } } public class Auto extends Vehicle { . . . public void setVehicleAttributes() { . . . } } Which of the following statements is correct?

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?

Select an appropriate expression to complete the following code segment, which is designed to print a message if the string stored in name is the first element of the players linked list. LinkedList players = new LinkedList(); // code to add elements to the linked list if ______________________________________ { System.out.print(name + ” is the first player on the list.”); }

Consider the method powerOfTwo shown below: public boolean powerOfTwo(int n) { if (n == 1) // line #1 { return true; } else if (n % 2 == 1) // line #2 { return false; } else { return powerOfTwo(n / 2); // line #3 } } What is the best interpretation of line #1?

Which of the following describes an immutable class?

 Which of the following statements regarding static methods is true?