Floating-point values that appear in source code are known as floating-point literals and are the type float by default.

Floating-point values that appear in source code are known as floating-point literals and are the type float by default.

Answer: False

The number of arguments in the method call must match the number of parameters in the method declaration's parameter list.

The number of arguments in the method call must match the number of parameters in the method declaration's parameter list.

Answer: True

Any class that contains public static void main(String[] args) can be used to execute an app.

Any class that contains public static void main(String[] args) can be used to execute an app.

Answer: True

Reference-type instance variables are initialized by default to the value null.

Reference-type instance variables are initialized by default to the value null.

Answer: True

Primitive-type local variables are initialized by default.

Primitive-type local variables are initialized by default.

Answer: False

Every method's body is delimited by left and right braces.

Every method's body is delimited by left and right braces.

Answer: True

Variables declared in the body of a particular method are known as instance variables and can be used in all methods of the class.

Variables declared in the body of a particular method are known as instance variables and can be used in all methods of the class.

Answer: False

True or false? A primitive-type variable can be used to invoke a method.

True or false? A primitive-type variable can be used to invoke a method.

Answer: False

True or false? Empty parentheses following a method name in a method declaration indicate that the method does not require any parameters to perform its task.

True or false? Empty parentheses following a method name in a method declaration indicate that the method does not require any parameters to perform its task.

Answer: True

True or false? An import declaration is not required when one class in a package uses another in the same package.

True or false? An import declaration is not required when one class in a package uses another in the same package.

Answer: True

True or false? By convention, method names begin with an uppercase first letter, and all subsequent words in the name begin with a capital first letter.

True or false? By convention, method names begin with an uppercase first letter, and all subsequent words in the name begin with a capital first letter.

Answer: False

Types in Java are divided into two categories- ____ types and ____ types.

Types in Java are divided into two categories- ____ types and ____ types.

Answer: Primitive, reference

The format specifier ____ is used to output values of type float or double.

The format specifier ____ is used to output values of type float or double.

Answer: %f

Variables of type float represent ____-precision floating-point numbers.

Variables of type float represent ____-precision floating-point numbers.

Answer: Single

A(n) ____ is a number with a decimal point, such as 7.33.

A(n) ____ is a number with a decimal point, such as 7.33.

Answer: Floating-point number

A(n) ____ is not required if you always refer to a class with its fully qualified class name.

A(n) ____ is not required if you always refer to a class with its fully qualified class name.

Answer: Import declaration

Class String is in package ____.

Class String is in package ____.

Answer: java.lang

Scanner method ____ reads characters until it encounters a newline character, then returns those character as a String.

Scanner method ____ reads characters until it encounters a newline character, then returns those character as a String.

Answer: nextLine

Return type ____ indicates that a method will not return a value.

Return type ____ indicates that a method will not return a value.

Answer: Void

Keyword public is an access ____.

Keyword public is an access ____.

Answer: Modifier

Scanner method ____ returns a double value.

Scanner method ____ returns a double value.

Answer: nextDouble

Variables of type double represent ____ floating-point numbers.

Variables of type double represent ____ floating-point numbers.

Answer: Double-precision

Java provides two primitive types for storing floating-point numbers in memory ____ and ___.

Java provides two primitive types for storing floating-point numbers in memory ____ and ___.

Answer: Float, double

By default, classes that are compiled in the same directory are considered to be in the same package, known as the ____.

By default, classes that are compiled in the same directory are considered to be in the same package, known as the ____.

Answer: Default package

Each parameter must specify both a(n) ____ and a(n) ____.

Each parameter must specify both a(n) ____ and a(n) ____.

Answer: Type, name

Keyword ____ requests memory from the system to store an object, then calls the corresponding class's constructor to initialize the object.

Keyword ____ requests memory from the system to store an object, then calls the corresponding class's constructor to initialize the object.

Answer: New

Keyword ____ in a class declaration is followed immediately by the class's name.

Keyword ____ in a class declaration is followed immediately by the class's name.

Answer: Class

Each class declaration that begins with keyword ___ must be stored in a file that has exactly the same name as the class and ends with the .java filename extension.

Each class declaration that begins with keyword ___ must be stored in a file that has exactly the same name as the class and ends with the .java filename extension.

Answer: Public

True or false? The arithmetic operators *, /, %, +, and - all have the same levels of precedence.

True or false? The arithmetic operators *, /, %, +, and - all have the same levels of precedence.

Answer: False

True or false? The remainder operator (%) can be used only with integer operands.

True or false? The remainder operator (%) can be used only with integer operands.

Answer: False

True or false? Java considers the variables number and NuMbEr to be identical.

True or false? Java considers the variables number and NuMbEr to be identical.

Answer: False

True or false? All variables must be given a type when they are declared.

True or false? All variables must be given a type when they are declared.

Answer: True

True or false? Comments cause the computer to print the text after the // on the screen when the program executes.

True or false? Comments cause the computer to print the text after the // on the screen when the program executes.

Answer: False

Methods ______, ______, and ______ display information in a command window.

Methods ______, ______, and ______ display information in a command window.

Answer: System.out.println, System.out.printf

Java applications begin execution at method ______.

Java applications begin execution at method ______.

Answer: Main

______ are reserved for use by Java.

______ are reserved for use by Java.

Answer: Keywords

______, ______, and ______ are called white space.

______, ______, and ______ are called white space.

Answer: Space characters, newlines, and tabs

_____ begins and end-of-line comment.

_____ begins and end-of-line comment.

Answer: //

You can use the ______ statement to make decisions.

You can use the ______ statement to make decisions.

Answer: If

A(n) ______ begins the body of every method, and a(n) ______ ends the body of every method.

A(n) ______ begins the body of every method, and a(n) ______ ends the body of every method.

Answer: Left brace, right brace

What is the representation of the third element in an array called a?

What is the representation of the third element in an array called a?

Answer: a[2]

Variables defined in the method header are called ______.

Variables defined in the method header are called ______.

Answer: Parameters

_____ is a simple but incomplete version of a method.

_____ is a simple but incomplete version of a method.

Answer: A stub

When you invoke a method with a parameter, the value of the argument is passed to the parameter. This is referred to as ______.

When you invoke a method with a parameter, the value of the argument is passed to the parameter. This is referred to as ______.

Answer: Pass by value

Each time a method is invoked, the system stores parameters and local variables in an area of memory, known as ______, which stores elements in last-in first-out fashion.

Each time a method is invoked, the system stores parameters and local variables in an area of memory, known as ______, which stores elements in last-in first-out fashion.

Answer: A stack

The signature of a method consists of ______.

The signature of a method consists of ______.

Answer: method name and parameter list.

Suppose your method does not return any value, which of the following keywords can be used as a return type?

Suppose your method does not return any value, which of the following keywords can be used as a return type?

Answer: Void

The Unicode of 'a' is 97. What is the Unicode for 'c'?

The Unicode of 'a' is 97. What is the Unicode for 'c'?

Answer: 99

___translates high-level language program into machine language program.

___translates high-level language program into machine language program.

Answer: a compiler

___is the physical aspect of the computer that can be seen.

___is the physical aspect of the computer that can be seen.

Answer: hardware

The default value for data field of a boolean type, numeric type, object type is ________, respectively.

The default value for data field of a boolean type, numeric type, object type is ________, respectively.

Answer: false, 0, null

______ is invoked to create an object.

______ is invoked to create an object.

Answer: A constructor

The keyword ________ is required to declare a class.

The keyword ________ is required to declare a class.

Answer: class

An object is an instance of a ________

An object is an instance of a ________

Answer: class

______ is a construct that defines objects of the same type.

______ is a construct that defines objects of the same type.

Answer: A class

________ represents an entity in the real world that can be distinctly identified.

________ represents an entity in the real world that can be distinctly identified.

Answer: An Object

The Dmanisi cranial remains show that the very early European specimens had large brains.

The Dmanisi cranial remains show that the very early European specimens had large brains.

Answer: False

The transition between premodern and anatomically modern forms of humans may have occurred as early as 500,000 years ago in Africa.

The transition between premodern and anatomically modern forms of humans may have occurred as early as 500,000 years ago in Africa.

Answer: False

According to the film Becoming Human Part 3 Neandertals grew up at a much slower rate than modern H. sapiens.

According to the film Becoming Human Part 3 Neandertals grew up at a much slower rate than modern H. sapiens.

Answer: False

Homo erectus is the first hominin for which we have evidence of wide geographical dispersion.

Homo erectus is the first hominin for which we have evidence of wide geographical dispersion.

Answer: True

The main effect of fluctuating climates in Africa during the Pleistocene was to change rainfall patterns.

The main effect of fluctuating climates in Africa during the Pleistocene was to change rainfall patterns.

Answer: True

The A. afarensis hand, wrist, and foot bones are indistinguishable from those of modern humans.

The A. afarensis hand, wrist, and foot bones are indistinguishable from those of modern humans.

Answer: False

Given the newest dates for the Ngandong Homo erectus material on Java, it is possible that Homo erectus could have existed contemporaneously with Homo sapiens.

Given the newest dates for the Ngandong Homo erectus material on Java, it is possible that Homo erectus could have existed contemporaneously with Homo sapiens.

Answer: True

The oldest New World primate fossil was found in Bolivia and dates to the Oligocene epoch.

The oldest New World primate fossil was found in Bolivia and dates to the Oligocene epoch.

Answer: True

Thanks to the modern medicine, many infectious diseases such as tuberculosis and cholera are no longer a threat to human populations.

Thanks to the modern medicine, many infectious diseases such as tuberculosis and cholera are no longer a threat to human populations.

Answer: False

The term race currently has only biological connotations and is without any social significance.

The term race currently has only biological connotations and is without any social significance.

Answer: False

The bow and arrow seems to have appeared during the Magdalenian.

The bow and arrow seems to have appeared during the Magdalenian.

Answer: True

The Upper Paleolithic was a period during which there were rapid shifts in climatic conditions.

The Upper Paleolithic was a period during which there were rapid shifts in climatic conditions.

Answer: True

Genetic evidence indicates that all native Australians are descendants of a single migration 50 k.y.a.

Genetic evidence indicates that all native Australians are descendants of a single migration 50 k.y.a.

Answer: True

There is evidence of chronological overlap in occupation of the Near East by Neandertals and modern humans.

There is evidence of chronological overlap in occupation of the Near East by Neandertals and modern humans.

Answer: True

Lagar Velho is a site located in the Near East.

Lagar Velho is a site located in the Near East.

Answer: False

As a group, the specimens from Skhul all have modern human features and none show any hints of pre modern features.

As a group, the specimens from Skhul all have modern human features and none show any hints of pre modern features.

Answer: False

Recent analyses have shown that the mtDNA from fossil modern human skeletons is exactly the same as the mtDNA from Neandertal skeletons.

Recent analyses have shown that the mtDNA from fossil modern human skeletons is exactly the same as the mtDNA from Neandertal skeletons.

Answer: False

The first modern Homo sapiens, known as Cro-Magnon, evolved from Western Europe.

The first modern Homo sapiens, known as Cro-Magnon, evolved from Western Europe.

Answer: False

Anatomically modern forms of Homo sapiens may have occurred as early as 200,000 years ago in Africa.

Anatomically modern forms of Homo sapiens may have occurred as early as 200,000 years ago in Africa.

Answer: True

Bone tools, beads, and decorated ocher fragments were found at Blombos Cave as old as 73,000 years old.

Bone tools, beads, and decorated ocher fragments were found at Blombos Cave as old as 73,000 years old.

Answer: True

The Neanderthal boy from Scladina Cave grew up at a much slower rate than modern H. sapiens.

The Neanderthal boy from Scladina Cave grew up at a much slower rate than modern H. sapiens.

Answer: False

The Chatelperronian tool industry is associated with Neandertals and Homo sapiens.

The Chatelperronian tool industry is associated with Neandertals and Homo sapiens.

Answer: True

All archaeologists agree that Homo erectus appears to have been an efficient big game hunter who rarely gathered wild plant foods.

All archaeologists agree that Homo erectus appears to have been an efficient big game hunter who rarely gathered wild plant foods.

Answer: False

If you are examining the fossil remains of the genus Dryopithecus, they are most likely from China.

If you are examining the fossil remains of the genus Dryopithecus, they are most likely from China.

Answer: False

The Acheulian biface or "hand axe" is a basic tool of the Acheulean technological tradition.

The Acheulian biface or "hand axe" is a basic tool of the Acheulean technological tradition.

Answer: True

Given the newest dates for the Ngandong Homo erectus material on Java, it is possible that Homo erectus could have existed contemporaneously with Homo sapiens.

Given the newest dates for the Ngandong Homo erectus material on Java, it is possible that Homo erectus could have existed contemporaneously with Homo sapiens.

Answer: True

The oldest New World primate fossil was found in Bolivia and dates to the Oligocene epoch.

The oldest New World primate fossil was found in Bolivia and dates to the Oligocene epoch.

Answer: True

Carbon 14 dating is a relative dating method used to date rocks and minerals.

Carbon 14 dating is a relative dating method used to date rocks and minerals.

Answer: False