Chp. 3 Vocabulary

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Chapter 3 Vocabulary

Abstract data type A class, A data type that can store data and methods.

ArithmeticException exception An exception thrown when division by 0

Assignment statement A statement that gives the variable and the value of the expression.

Case sensitive An uppercase letter is different from lowercase

Class Abstract data type

Concatenate join two or more strings to form a larger string.

Constant A name for a memory location that stores a value that cannot change from its initial assessment.

Data type The kind of information a variable stores.

Declaration a statement that creates a variable or constant.

Equal sign (=) indicates when a variable on the left receives the value on the right.

Exception Run time error

Floating point Values that are represented by the double data type contains numbers after the decimal point.

Identifier available or constant an identity must begin with a letter and can include.

Initialize to assign a variable a value in a in a declaration statement

InputMismatchException exception an exception thrown when user input is not expected.

Input stream sequence of characters received from an input device.

Instantiation To create a new object

Integer division Division that truncates the decimal portion

Keyword A word that has a special meaning to the java compiler

Literal actual value

Logic error error that is syntactically correct but produces an unexpected error

Modulus division Division that returns there remainder

Numeric expression At leas one operand and possibly one ore more operators is maintained

Object Variable declared with class

Operator precedence level assigned to the operator so that a spastic order of operations is used

Primitive data type data type that can store only a single piece of data build in data types

Prompt string that informs the user of the kind of data expected to be typed

Run-time error error effecting program execution

Semantic error logical error

Syntax error error that violates the rules of java

Truncate removing the decimal portion of a number when casting double to an int

Type casting converting a number from one type to another

Variable name for a memory location that stores a value

boolean data type that represents true or false

char data represents a single character

double data that represents positive or negative floating point numbers

final keyword used to declare and identifier a constant

import used to make a package or classes from a package accessible to an application

in java.lang system member that represents the stranded input stream

int data type that represents positive or negative integers

java.lang most fundamental java package

java.text package with the number format class

java.util scanner class for reading imput

NumberFormat class with methods for formating numbers

Scanner class with methods for reading input from the user

System.in stream for reading from the keyboard.