In a linked list, the predecessor of a node X is undefined if X is the first nod

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In a linked list, the predecessor of a node X is undefined if X is the first node, otherwise it is the node whose index is one less than the index of X is the first node in the list is the node that comes after X To allocate storage for their elements, linked lists use random allocation linked allocation expandable allocation In a list implementation of a queue, the end of the list from which elements are removed is called the front of the queue the rear of the queue the top of the queue the bottom of the queue What will happen when the following statement is executed?

x.setEditable(false);
Answer A The boolean variable x will be set to false B The text field x will be made read-only C The text field x will be editable D The boolean variable x will be editable

What will happen when the following statement is executed?

x.setEditable(false);
The boolean variable x will be set to false The text field x will be made read-only The text field x will be editable The boolean variable x will be editable

A FileNotFoundException will be thrown An IOException will be thrown The file IOData.dat will be created This is a critical error, the program will stop execution The tail of a list is an instance of a class that implements the ListTail interface is what you get when take a list and remove its head is a synchronized subclass of the LinkedList class None of these


If you try to add an item to an ArrayList whose size is equal to its capacity, Answer A an exception that indicates that the ArrayList is full is thrown B a new ArrayList object with twice the capacity is created, and the elements are moved to this new ArrayList. C The method for adding the new item returns false D The method for adding the new item returns null


If you try to add an item to an ArrayList whose size is equal to its capacity, an exception that indicates that the ArrayList is full is thrown a new ArrayList object with twice the capacity is created, and the elements are moved to this new ArrayList. The method for adding the new item returns false The method for adding the new item returns null


will cause a compiler error will compile correctly, but cause an exception at run time will compile and run correctly Sets the textList component to single selection mode
Sets the textList component to ListSelectModel
Sets the textList component to single interval selection mode
Sets the value of textList to SINGLE_INTERVAL_SELECTION

A linked list class uses a Node class with successor reference next and field element to store values. It uses a reference first to point to the first node of the list. Code to print all elements stored in the list can be written as System.out.print(first);
In a linked list, the successor of a node X may not exist is the node that comes after X, and it always exists is the last node in the list is the node whose index is one greater than the index of X


A catch clause that uses a parameter variable of the Exception type is capable of catching any exception that extends the Error class. AnswerA True
B False


If a method in a subclass has the same signature as a method in the superclass, the subclass method overloads the superclass method. AnswerA True
B False


In an inheritance relationship, the derived class constructor always executes before the superclass constructor. AnswerA True
B False


The stack push operation Answer A is normally implemented through a hash set B removes and returns an item from the stack C returns the item at the top of the stack, but does not remove it D adds a single item to the stack




What will be the result of the following code?

FileOutputStream fstream new FileOutputStream("Output.dat");
DataOutputStream outputFile = new DataOutputStream(fstream);
Answer A The outputFile variable will reference an object that is able to write text data only to the Output.dat file B The outputFile variable will reference an object that is able to write binary data to the Output.dat file C The outputFile variable will reference an object that is able to read binary data from the Output.dat file D The outputFile variable will reference an object that is able to write to Output.dat as a random access file


A catch clause that uses a parameter variable of the Exception type is capable of catching any exception that extends the Error class. If a method in a subclass has the same signature as a method in the superclass, the subclass method overloads the superclass method. In an inheritance relationship, the derived class constructor always executes before the superclass constructor. The stack push operation Answer A is normally implemented through a hash set B removes and returns an item from the stack C returns the item at the top of the stack, but does not remove it D adds a single item to the stack




What will be the result of the following code?

FileOutputStream fstream new FileOutputStream("Output.dat");
DataOutputStream outputFile = new DataOutputStream(fstream);
Answer A The outputFile variable will reference an object that is able to write text data only to the Output.dat file B The outputFile variable will reference an object that is able to write binary data to the Output.dat file C The outputFile variable will reference an object that is able to read binary data from the Output.dat file D The outputFile variable will reference an object that is able to write to Output.dat as a random access file


The stack push operation is normally implemented through a hash set removes and returns an item from the stack returns the item at the top of the stack, but does not remove it adds a single item to the stack




What will be the result of the following code?

FileOutputStream fstream new FileOutputStream("Output.dat");
DataOutputStream outputFile = new DataOutputStream(fstream);
Answer A The outputFile variable will reference an object that is able to write text data only to the Output.dat file B The outputFile variable will reference an object that is able to write binary data to the Output.dat file C The outputFile variable will reference an object that is able to read binary data from the Output.dat file D The outputFile variable will reference an object that is able to write to Output.dat as a random access file


What will be the result of the following code?

FileOutputStream fstream new FileOutputStream("Output.dat");
DataOutputStream outputFile = new DataOutputStream(fstream);
The outputFile variable will reference an object that is able to write text data only to the Output.dat file The outputFile variable will reference an object that is able to write binary data to the Output.dat file The outputFile variable will reference an object that is able to read binary data from the Output.dat file The outputFile variable will reference an object that is able to write to Output.dat as a random access file


A is undefined if X is the first node, otherwise it is the node whose index is one less than the index of X B is the first node in the list C is the node that comes after X D
is the node that is just before X


To allocate storage for their elements, linked lists use Answer A random allocation B linked allocation C expandable allocation D contiguous allocation




In a list implementation of a queue, the end of the list from which elements are removed is called Answer A the front of the queue B the rear of the queue C the top of the queue D the bottom of the queue


What will happen when the following statement is executed?

x.setEditable(false);
Answer A The boolean variable x will be set to false B The text field x will be made read-only C The text field x will be editable D The boolean variable x will be editable


If the IOData.dat file does not exist, what will happen when the following statement is executed?


Answer A A FileNotFoundException will be thrown B An IOException will be thrown C The file IOData.dat will be created D This is a critical error, the program will stop execution

The tail of a list Answer A is an instance of a class that implements the ListTail interface B is what you get when take a list and remove its head C is a synchronized subclass of the LinkedList class D None of these


If you try to add an item to an ArrayList whose size is equal to its capacity, Answer A an exception that indicates that the ArrayList is full is thrown B a new ArrayList object with twice the capacity is created, and the elements are moved to this new ArrayList. C The method for adding the new item returns false D The method for adding the new item returns null



Consider the Class:
class Value <T extends Number> { private T v; public Value(T v1) { v = v1; } public void output ()

The code Value<Double> nV1 = new Value<Double>(34.5); will:

A will cause a compiler error B will compile correctly, but cause an exception at run time C will compile and run correctly D None of these



The following statement textList.setSelectionMode(ListSelectionMode1.SINGLE_INTERVAL_SELECTION);
A Sets the textList component to single selection mode
B Sets the textList component to ListSelectModel
C Sets the textList component to single interval selection mode
D
Sets the value of textList to SINGLE_INTERVAL_SELECTION


A linked list class uses a Node class with successor reference next and field element to store values. It uses a reference first to point to the first node of the list. Code to print all elements stored in the list can be written as Answer A System.out.print(first); B C D
In a linked list, the successor of a node X Answer A may not exist B is the node that comes after X, and it always exists C is the last node in the list D is the node whose index is one greater than the index of X


A catch clause that uses a parameter variable of the Exception type is capable of catching any exception that extends the Error class. AnswerA True
B False


If a method in a subclass has the same signature as a method in the superclass, the subclass method overloads the superclass method. AnswerA True
B False


In an inheritance relationship, the derived class constructor always executes before the superclass constructor. AnswerA True
B False


The stack push operation Answer A is normally implemented through a hash set B removes and returns an item from the stack C returns the item at the top of the stack, but does not remove it D adds a single item to the stack




What will be the result of the following code?

FileOutputStream fstream new FileOutputStream("Output.dat");
DataOutputStream outputFile = new DataOutputStream(fstream);
Answer A The outputFile variable will reference an object that is able to write text data only to the Output.dat file B The outputFile variable will reference an object that is able to write binary data to the Output.dat file C The outputFile variable will reference an object that is able to read binary data from the Output.dat file D The outputFile variable will reference an object that is able to write to Output.dat as a random access file


{ System.out.println(v); } }

Explanation / Answer

1)

6)b)

A is undefined if X is the first node, otherwise it is the node whose index is one less than the index of X
2)

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