Add These

Question 0

Error

Answer 0

Similar to an exception, except that an error generally represents an unrecoverable situation and should not be caught.

Question 1

Exception

Answer 1

An object that defines an unusual or erroneous situation.

Question 2

try-catch Statement

Answer 2

Identifies a block of statements that may throw an exception.

Question 3

catch clause

Answer 3

Follows a try block and defines how a particular kind of exception is handled.
Also called an exception handler

Question 4

exception handler

Answer 4

Follows a try block and defines how a particular kind of exception is handled.
Also called a catch clause.

Question 5

finally clause

Answer 5

An optional end to a try-catch statement.

Defines a section of code that is executed no matter how the try block is exited.

Question 6

exception propagation

Answer 6

If an exception is not caught and handled in the method where it occurs, control is immediately returned to the method that invoked the method that produced the exception. If it isn’t caught there, control returns to method that called it, and so on until it is passed out of the main method and then the program is terminated.

Question 7

Errors

Answer 7

LinkageError
ThreadDeath
VirtualMachineError
AWTError

Question 8

Exceptions

Answer 8

IllegalAccessException
NoSuchMethodException
ClassNotFoundException

Question 9

RuntimeExceptions

Answer 9

ArithmeticException
IndexOutOfBoundsException
NullPointerException

Question 10

checked exception

Answer 10

Must either be caught by a method or be listed in the throws clause of any method that may throw or propagate it.

Question 11

throws clause

Answer 11

Appended to the header of a method definition to formally acknowledge that the method will throw or propagate a particular exception if it occurs.

Question 12

unchecked exception

Answer 12

Requires no throws clause.
The only unchecked exceptions in Java are objects of the type RuntimeException or any of its descendants:
ArithmeticException
IndexOutOfBoundsException
NullPointerException

Question 13

Abstraction

Answer 13

Hides certain data types at certain times.

Question 14

Data Type

Answer 14

A group of values and the operations defined on those values.

Question 15

ADT

Answer 15

Abstract Data Type: A data type whose values and operation are not inherently defined within a programming language.
It is abstract only in that the details of its implementation must be defined and should be hidden from the user.

Question 16

data structure

Answer 16

The collection of programming constructs used to implement a collection.

Question 17

API

Answer 17

Application Programming Interfaces: A set of classes that represent a few specific types of collections, implemented in various ways.

Question 18

Stack

Answer 18

A linear collection whose elements are added to, and removed from, the same end.
Last in, first out

Question 19

Stack: push

Answer 19

Adds an element to the top of the stack.

Question 20

Stack: pop

Answer 20

Removes an element from the top of the stack.

Question 21

Stack: peek

Answer 21

Examines the elements at the top of the stack.

Question 22

Stack: isEmpty

Answer 22

Determines if the stack is empty.

Question 23

Stack: size

Answer 23

Determines the # of elements on the stack

Question 24

Exception

Answer 24

An object that defines an unusual or erroneous situation.

Question 25

To expand an array size:

Answer 25

private void expandCapacity(){ stack = Arrays.copyOf (stack, stack.length * 2); }