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Section 1

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.A class is analogous to a(n) __________. a. house b. blueprint c. strategy d. table

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Mar 1, 2020

Cards (75)

Section 1

(50 cards)

.A class is analogous to a(n) __________. a. house b. blueprint c. strategy d. table

Front

b. Blueprint

Back

This section of a switch statement is branched to if none of the case expressions match the switch expression. a. else b. default c. case d. otherwise

Front

b. Default

Back

To determine the number of items stored in an ArrayList object or a HashMap, you use this method. a. size b. capacity c. items d. length

Front

a.Size

Back

This type of expression has a value of either true or false. a. binary expression b. conditional expression c. unconditional expression d. boolean expression

Front

d.Boolean expression

Back

This type of loop always executes at least once. a. while b. do-while c. for

Front

b.Do-while

Back

.This type of loop has no way of ending and repeats until the program is interrupted or crashes. a. indeterminate b. interminable c. infinite d. timeless

Front

c.Infinite

Back

Which Scanner class method would you use to read the following: a. A string b. An int c. A double

Front

a. next line b. next int c. next double

Back

.To open a file for writing, you use the following class. a. PrintWriter b. FileOpen c. OutputFile d. FileReader

Front

a.Printwriter

Back

This statement causes a method to end and sends a value back to the statement that called the method. a. end b. exit c. return

Front

c.Return

Back

An if statement that appears inside another if statement is called: a. nested if statement b. tiered if statement c. dislodged if statement d. structured if statement

Front

a. Nested if statement

Back

What kind of comments are the following: a. // ... b. / ... / c. /* ... /

Front

a. single line b. multi line c. documentation comments

Back

The if statement is an example of a(n) __________. a. input structure b. decision structure c. looping structure d. class structure

Front

b. decision structure

Back

.This keyword indicates that a class inherits from another class. a. Derived b. specialized c. Based d. extends

Front

d.Extends

Back

This is a method that is automatically called when an instance of a class is created. a. accessor b. constructor c. void d. mutator

Front

b.Constructor

Back

The first index or subscript in an array is always what? Similarly, the last index or subscript in an array is always what?

Front

always 0 array.length-1

Back

. You can use this class to display dialog boxes. a. JOptionPane b. Scene c. PrimaryStage

Front

a. JOptionPane

Back

.A method header can contain __________. a. method modifiers b. the method return type c. the method name d. a list of parameter declarations e. all of the above f. none of the above

Front

e. All of the above

Back

What are the three sections of a UML class diagram? How are the following class relationships depicted in UML? a. Association b. Aggregation c. Composition d. Generalization

Front

aggregation-not filled in diamond composition-colored in diamond generalization-triangle

Back

&&, ||, and ! are __________. a. relational operators b. logical operators c. conditional operators d. ternary operators

Front

b. Logical operators

Back

This is a method that returns a value from a class's field, but does not change it. a. accessor b. constructor c. void d. mutator

Front

a. Accesor

Back

This determines whether two different String objects contain the same string. a. the == operator b. the = operator c. the equals method

Front

c.Equals method

Back

.Indicate which of the for, while, and do-while loops is a pretest and which is a posttest?

Front

while, for are pretest do-while is posttest

Back

This is a class member that holds data. a. method b. instance c. attribute d. constructor

Front

c.Attribute

Back

This is a collection of programming statements that specify the fields and methods that a particular type of object may have. a. class b. method c. parameter d. instance

Front

a. Class

Back

A variable that receives a value that is passed into a method is known as a(n) _________. a. parameter b. argument c. signal d. return value

Front

a.Parameter

Back

This expression is executed by the for loop only once, regardless of the number of iterations. a. initialization b. test c. update d. pre-increment

Front

a. Initilization

Back

If you write this method for a class, Java will automatically call it anytime you concatenate an object of the class with a string. a. toString b. plusString c. stringConvert

Front

a.ToString

Back

The negation operator is __________. a. unary b. binary c. ternary

Front

a. Unary

Back

Indicate which of the following is not a valid assignment statement? a. num = 9; b. 177 = amount; c. amount = 129; d. letter = "W" ;

Front

b

Back

This is a method that stores a value in a field or changes its value. a. accessor b. constructor c. void d. mutator

Front

d.Mutator

Back

The = and the == operators perform the same operation.

Front

T

Back

A group of statements, such as those in a class or a method, are enclosed in _________. a. braces {} b. parentheses () c. brackets [] d. any of the above

Front

a. Braces {}

Back

In an inheritance relationship, the parent class is also called _ while the child class is also called ____. a. Superclass, subclass b. Base, derived c. General, specific d. All the above e. None of the above

Front

a.Superclass,subclass

Back

Each element of an array is accessed by a number known as a(n) __________. a. subscript or index b. size declarator c. address d. specifier

Front

a. Subscript or index

Back

The conditional expression takes how many operands?

Front

3

Back

What will the following statements display? int x = 5; System.out.println(x++);

Front

5, because of the x++

Back

This array field holds the number of elements that the array has. a. size b. elements c. length d. length()

Front

c. length

Back

A subclass does not inherit the following from to its superclass members (Select all that apply) a. Public members (attributes and methods) b. Private members c. Constructors

Front

a. Public members c. Constructors

Back

>, <, and == are __________. a. relational operators b. logical operators c. conditional operators d. ternary operators

Front

a. Relational operators

Back

This type of method does not return a value. a. null b. void c. empty d. Anonymous

Front

b.Void

Back

This keyword causes an object to be created in memory. a. create b. New c. object d. construct

Front

b.New

Back

. By itself, a semicolon is considered a _________; a. An empty statement b. An empty expression c. An empty operator

Front

a. An empty statement

Back

A value that is passed into a method when it is called is known as a(n) __________. a. parameter b. argument c. signal d. return value

Front

b. Argument

Back

These are automatically provided for a class: a. toString() b. default constructor c. this reference d. none of the above e. all of the above

Front

d. none of the above

Back

What is each repetition of a loop known as? a. cycle b. revolution c. orbit d. iteration

Front

d. Iteration

Back

.To open a file for reading, you use the following classes. a. File and PrintWriter b. File and Output c. File and Input d. File and Scanner

Front

d.File and scanner

Back

.You can use this method to print formatted output to the console. a. Format.out.println b. Console.format c. System.out.printf d. System.out.formatted

Front

c. System.out.printf

Back

The data 'G', "Hello World!", and 1.414 are all examples of __________. a. variables b. literals c. strings d. none of the above

Front

b. Literals

Back

.This class allows you to read a line from a file. a. FillReader b. Scanner c. PrintWriter d. FileWriter

Front

b.Scanner

Back

When a local variable has the same name as a field, the local variable's name does this to the field's name. a. shadows b. complements c. deletes d. merges with

Front

a.Shadows

Back

Section 2

(25 cards)

When you write a constructor for a class, it still has the default constructor that Java automatically provides.

Front

F

Back

When code in a method changes the value of an integer parameter, it also changes the value of the argument that was passed into the parameter.

Front

F

Back

The scope of a variable is limited to the block in which it is defined.

Front

T

Back

All classes in Java inherit directly or indirectly from the Object class

Front

T

Back

Both ArrayLists and HashMaps are dynamic and expand and shrink as needed.

Front

T

Back

Comments that begin with // can be processed by javadoc.

Front

F

Back

A subclass can extends (inherit from) only a single superclass.

Front

T

Back

If one of an operator's operands is a double, and the other operand is an int, Java will automatically convert the value of the double to an int.

Front

F

Back

When an object, such as a String, is passed as an argument, it is actually a reference to the object that is passed.

Front

T

Back

You cannot catch the same exception two more than one catch block of the same try block.

Front

T

Back

Both of the following declarations are legal and equivalent: int[] numbers; int numbers[];

Front

T

Back

You cannot have a catch block without a try block

Front

T

Back

A class may not have more than one constructor.

Front

F

Back

When an if statement is nested in the if clause of another statement, the only time the inner if statement is executed is when the boolean expression of the outer if statement is true. Similarly, when an if statement is nested in the else clause of another statement, the only time the inner if statement is executed is when the boolean expression of the outer if statement is false

Front

T

Back

You cannot change the value of a variable whose declaration uses the final keyword.

Front

T

Back

Only the finally-block on the try-catch-finally is optional.

Front

T

Back

Each instance of a class has its own set of instance fields

Front

T

Back

Variable names may begin with a number.

Front

T

Back

It is not necessary to initialize loop variable.

Front

F

Back

A left brace in a Java program is always followed by a right brace later in the program

Front

T

Back

When a program is finished using a file, it should close the file.

Front

T

Back

In a nested loop, the inner loop goes through all of its iterations for every iteration of the outer loop

Front

T

Back

When passing multiple arguments to a method, the order in which the arguments are passed is not important.

Front

F

Back

You terminate a method header with a semicolon.

Front

F

Back

A variable must be declared before it can be used

Front

T

Back

Programming

Preview this deck

.A class is analogous to a(n) __________. a. house b. blueprint c. strategy d. table

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Cards (75)

.A class is analogous to a(n) __________. a. house b. blueprint c. strategy d. table

b. Blueprint

This section of a switch statement is branched to if none of the case expressions match the switch expression. a. else b. default c. case d. otherwise

b. Default

To determine the number of items stored in an ArrayList object or a HashMap, you use this method. a. size b. capacity c. items d. length

a.Size

This type of expression has a value of either true or false. a. binary expression b. conditional expression c. unconditional expression d. boolean expression

d.Boolean expression

This type of loop always executes at least once. a. while b. do-while c. for

b.Do-while

.This type of loop has no way of ending and repeats until the program is interrupted or crashes. a. indeterminate b. interminable c. infinite d. timeless

c.Infinite

Which Scanner class method would you use to read the following: a. A string b. An int c. A double

a. next line b. next int c. next double

.To open a file for writing, you use the following class. a. PrintWriter b. FileOpen c. OutputFile d. FileReader

a.Printwriter

This statement causes a method to end and sends a value back to the statement that called the method. a. end b. exit c. return

c.Return

An if statement that appears inside another if statement is called: a. nested if statement b. tiered if statement c. dislodged if statement d. structured if statement

a. Nested if statement

What kind of comments are the following: a. // ... b. / ... / c. /* ... /

a. single line b. multi line c. documentation comments

The if statement is an example of a(n) __________. a. input structure b. decision structure c. looping structure d. class structure

b. decision structure

.This keyword indicates that a class inherits from another class. a. Derived b. specialized c. Based d. extends

d.Extends

This is a method that is automatically called when an instance of a class is created. a. accessor b. constructor c. void d. mutator

b.Constructor

The first index or subscript in an array is always what? Similarly, the last index or subscript in an array is always what?

always 0 array.length-1

. You can use this class to display dialog boxes. a. JOptionPane b. Scene c. PrimaryStage

a. JOptionPane

.A method header can contain __________. a. method modifiers b. the method return type c. the method name d. a list of parameter declarations e. all of the above f. none of the above

e. All of the above

What are the three sections of a UML class diagram? How are the following class relationships depicted in UML? a. Association b. Aggregation c. Composition d. Generalization

aggregation-not filled in diamond composition-colored in diamond generalization-triangle

&&, ||, and ! are __________. a. relational operators b. logical operators c. conditional operators d. ternary operators

b. Logical operators

This is a method that returns a value from a class's field, but does not change it. a. accessor b. constructor c. void d. mutator

a. Accesor

This determines whether two different String objects contain the same string. a. the == operator b. the = operator c. the equals method

c.Equals method

.Indicate which of the for, while, and do-while loops is a pretest and which is a posttest?

while, for are pretest do-while is posttest

This is a class member that holds data. a. method b. instance c. attribute d. constructor

c.Attribute

This is a collection of programming statements that specify the fields and methods that a particular type of object may have. a. class b. method c. parameter d. instance

a. Class

A variable that receives a value that is passed into a method is known as a(n) _________. a. parameter b. argument c. signal d. return value

a.Parameter

This expression is executed by the for loop only once, regardless of the number of iterations. a. initialization b. test c. update d. pre-increment

a. Initilization

If you write this method for a class, Java will automatically call it anytime you concatenate an object of the class with a string. a. toString b. plusString c. stringConvert

a.ToString

The negation operator is __________. a. unary b. binary c. ternary

a. Unary

Indicate which of the following is not a valid assignment statement? a. num = 9; b. 177 = amount; c. amount = 129; d. letter = "W" ;

b

This is a method that stores a value in a field or changes its value. a. accessor b. constructor c. void d. mutator

d.Mutator

The = and the == operators perform the same operation.

T

A group of statements, such as those in a class or a method, are enclosed in _________. a. braces {} b. parentheses () c. brackets [] d. any of the above

a. Braces {}

In an inheritance relationship, the parent class is also called _________ while the child class is also called ____________. a. Superclass, subclass b. Base, derived c. General, specific d. All the above e. None of the above

a.Superclass,subclass

Each element of an array is accessed by a number known as a(n) __________. a. subscript or index b. size declarator c. address d. specifier

a. Subscript or index

The conditional expression takes how many operands?

3

What will the following statements display? int x = 5; System.out.println(x++);

5, because of the x++

This array field holds the number of elements that the array has. a. size b. elements c. length d. length()

c. length

A subclass does not inherit the following from to its superclass members (Select all that apply) a. Public members (attributes and methods) b. Private members c. Constructors

In an inheritance relationship, the parent class is also called _ while the child class is also called ____. a. Superclass, subclass b. Base, derived c. General, specific d. All the above e. None of the above