Ch. 8: Primitive Data

bytes

A primitive data value uses a small, fixed number of _____.

not

A programmer can ____ create new primitive data types.

all

____ values in a computer are represented using one data type or another.

Integer floating

_____ types have no fractional part; _______ point types have a fractional part.

values

______ are not just numbers, but any kind of data that a computer can process.

control

______ characters are bit patterns that show the end of a line or where to start pages

decimal

______ point tells the compiler to represent the value using a floating point primitive data type.

long

A 64 bit ______ literal has an upper case 'L' or lower case 'l' at the end.

apostrophe

A character literal is a single character with an on each _______ side

objects

All data in Java falls into one of two categories: primitive data and ______.

object

An _______ is a big block of data. An """"" may use many bytes of memory.

arbitrary

Computer memory stores ______ bit patterns

commas

In source programs, floating point literals always have a decimal point in them, and no ________

data type

Is a scheme for using bits to represent values.

single

Primitive type char represents a ______ character.

explicitly

Sometimes you need to _______ ask for a single-precision float literal. Do this by putting a lower case 'f' or upper case 'F' at the end

d D

Sometimes you need to explicitly ask for a double literal. Do this by putting a lower case '____' or upper case '_____' at the end

24 7

The data type float has ____ bits of precision. This is equivalent to only about ____ decimal places. (The rest of the 32 bits are used for the sign and size of the number.)

class

The data type of an object is called its ______.

primitive data

The eight ________ _______ types are: byte, short, int, long, float, double, char, and boolean.

8

There are only ___ primitive data types.

many

There are only eight primitive data types. However, Java has _______ types of objects, and you can invent as many others as you need. Any data type you invent will be a type of object.

built into

There are types of data that are so fundamental that ways to represent them are ___ ____ Java.

difference

There is a fundamental ________ between the method used to represent integers and the method used to represent floating point numbers.

int double

Usually you should use ___ or _________ for your numeric data.

literal

a ______ is a value that is explicitly shown in the program.

double

a floating point literal will automatically be of type _______.

15

double has much greater precision: about _____ significant decimal digits.

double

double has twice as many bits and is sometimes called "________-precision floating point".

single

float is sometimes called "________-precision floating point".

boolean

is used to represent a single true/false value

\n

newline character

char

primitive data type for characters in Java is named _____.

fundamental

primitive means "a __________ component that is used to create other, larger parts."

short

size: 16 bits | range: -32,768 to +32,767

int

size: 32 bits | range: -2 billion to +2 billion

float

size: 32 bits | range: -3.4E38 to +3.4E38

double

size: 64 bits | range: -1.7E308 to 1.7E308

long

size: 64 bits | range: -9E18 to +9E18

byte

size: 8 bits | range: -128 to +127

\t

tabulation character