Vocabulary

Contents

• General
• Things in a Java program
• Various Java statements
• Java types

Things in a Java program

identifier

reserved word

operator

literal

delimiter

comment

qualified name

variable

• local variable
• class variable
• instance variable

constant

declaration

scope

expression

statement

block

value

type

type cast, promotion

primitive type

composite (or compound) type

array

class

interface

abstract class

subtype

supertype

dynamic type (vs. static)

subtype polymorphism

method call (invocation)

receiver

static method call

(static) method definition

method signature

overloading

parameter

• formal parameter
• actual parameter

return type

instance

instance variable

(instance) method

member

constructor

accessor

mutator

class invariant

initialization

assignment

allocation

instantiation

generic class

class parameter

iterator

Java statements

variable declaration

assignment

if (test) { stmts } else { stmts }

while (test) { body stmts }

do { body stmts } while (test);

for (init; test; next) { body stmts }

for (type var: array) { body stmts }

for (type var: collection) { body stmts }

break

return

return value

switch (integer expr) { cases }

try { statements }

catch (exception-class parameter-name) { statements }

finally { statements }

throw

Java types

primitive types

• char
• int (also short and long)
• double (also float)
• boolean

arrays

with variable .length

classes

• String
• Scanner
• FileInputStream
• PrintWriter

exception-related classes

• Error
• Exception
• RuntimeException

collection (and related) classes and interfaces

• ArrayList
• HashSet
• HashMap
• Iterator

GUI classes and interfaces

• ActionListener
• Painter and PaintPanel
• JFrame and JPanel
• JLabel, JTextField and JButton