Object Oriented Programming Using Java - Bca

java.applet

java.awt

java.awt.image

java.io

Public

Protected

private

All of the mentioned

import

Import

implements

Implements

virtual debugging

remote debugging

machine debugging

compiling debugging

changed value pop on the screen

variable changes are printed in logs

dump of variable changes are printed on the screen on end of execution

variable tab shows variables highlighted when values change

java.io.date

java.sql.date

java.util.date

java.util.dateTime

import pkg.

Import pkg.

import pkg.*

Import pkg.*

Package defines a namespace in which classes are stored

A package can contain other package within it

Java uses file system directories to store packages

A package can be renamed without renaming the directory in which the classes are stored

init

init-method

initialization

initialization-method

destroy

destroy-method

destruction

destruction-method

Integer instance

Generic class instance

Generic type instance

Collection instances

Array

List

Map

Set

Generic methods are the methods defined in a generic class

Generic methods are the methods that extend generic class methods

Generic methods are methods that introduce their own type parameters

Generic methods are methods that take void parameters

catch

throw

throws

all of the mentioned

Overloaded Methods

Generic methods

Class methods

Overriding methods

Null

Empty collection

Singleton collection

Empty String

Array

Array list

Vector

Set

Try

Finally

Exit

Catch

Release database connection when querying is complete

Use Finally block as much as possible

Release instances stored in static tables

Not using Finally block often

System.currentTimeMillis()

System.nanoTime()

System.getCurrentTime()

System.getProcessingTime()

The class name should start with lowercase

The class should have thousands of lines of code

The class should only contain those attribute and functionality which it should; hence keeping it short

The class attributes and methods should be public

variable names should be short

variable names should be such that they avoid ambiguity

test case method names should be created as english sentences without spaces

class constants should be used when we want to share data between class methods

for(int i=0; i

for(int i=99; i>=0; i--)

for(int i=100; i

for(int i=99; i>0; i++)

Stream API

Serialization

Spliterator

Lambda Expression

It reads all the files at the path specified as a String

It reads all the lines from a file as a Stream

It reads the filenames at the path specified

It counts the number of lines for files at the path specified