Java/j2Ee Discussions

[vijayjust4u]

[quote name='biscuitraja' timestamp='1371672438' post='1303871151']
koddiga detail ga cheppava
[/quote]


SQL lo 'select * from TABLE_TEST' ani query raastaavu....
HQL lo 'from TABLE_TEST' ante saripotundhi...
high level lo inthe...
detailed gaa kaavaali ante... tutorials choodu....

[biscuitRAJA000]

[quote name='Sinnababu_Sillyfellow' timestamp='1371672592' post='1303871168']


SQL lo 'select * from TABLE_TEST' ani query raastaavu....
HQL lo 'from TABLE_TEST' ante saripotundhi...
high level lo inthe...
detailed gaa kaavaali ante... tutorials choodu....
[/quote]
ok

[geeni83]

[quote name='cherlapalli_jailer' timestamp='1370880457' post='1303841918']
but it is always advisable to have java installed locally..
do this
1) install JDK 6 or 7
2) download eclipse

if possible download mySql or oralce(home edition which is also free)

these r basic requirments
[/quote]


oracle home edition download link ivvu baa

or mysql download link aina?

edi download seskunte better?

[geeni83]

multiple threading in corejava is must to learn?

[king420]

Singleton Pattern ante enti

Dependency Injection

Spring Web Services ni Debugging ela chestam

[geeni83]

[quote name='HAPPYNESS' timestamp='1371676103' post='1303871531']
Singleton Pattern ante enti

Dependency Injection

Spring Web Services ni Debugging ela chestam
[/quote]


vancul.. nuvu kuda java na?

[cherlapalli_jailer]

[quote name='HAPPYNESS' timestamp='1371676103' post='1303871531']
[b]Singleton Pattern ante enti[/b]

Dependency Injection

Spring Web Services ni Debugging ela chestam
[/quote]

normal ga oka instance of object open ayyi vunte chaalu ane situations lo we use signleton

we require that particular class to run only once for entire application

Example chebitha i think will be clear..

suppose u have a connection pool class of ur own...


public class DBConnectionManager {

private static DBConnectionManager instance = null;

public static synchronized DBConnectionManager getInstance() throws DBConnectionPoolException
{
//
// If it has not been created yet, then instantiate the object
//

if (instance == null)
instance = new DBConnectionManager();

return instance;
}
//you can create pool of connection means open 50 connections to DB
//and supply as and when required

then
//getConnection
//close connection etc..

for the if u call once it will create 50 connections...so u cannot keep on initializting this class which will result in opening the connection every time

so we will restrict it to once..and will reuse the same instance

hope i addressed it if not let me know
}

[cherlapalli_jailer]

[quote name='JAINTR' timestamp='1371672809' post='1303871195']
oracle home edition download link ivvu baa

or mysql download link aina?

edi download seskunte better?
[/quote]

Oracle home edition down load cgesukunte better

most cases lo oracle vadataaru

mySql ..eppudu ante....if u want to develop ur own apps and market then go for mysql

[king420]

[quote name='JAINTR' timestamp='1371676173' post='1303871536']


vancul.. nuvu kuda java na?
[/quote]
kadu nerchukuntunna

[cherlapalli_jailer]

[quote name='HAPPYNESS' timestamp='1371676103' post='1303871531']
Singleton Pattern ante enti

Dependency Injection

[b]Spring Web Services ni Debugging ela chestam[/b]
[/quote]

depends on the ENV/Frame work u work in the office..

in most projects we are not having complete code on our development system..

so u have to do ur part and build the project and test....

normal enite project code access vuntdi local bulid chesukone option vunte...

then use tomcat and eclipse which i do

or else

System.out.println ("1 to N") anthe

[Water]

[quote name='HAPPYNESS' timestamp='1371677009' post='1303871603']
kadu nerchukuntunna
[/quote]
Yo!!! whats up..

[king420]

[quote name='cherlapalli_jailer' timestamp='1371676667' post='1303871574']

normal ga oka instance of object open ayyi vunte chaalu ane situations lo we use signleton

we require that particular class to run only once for entire application

Example chebitha i think will be clear..

suppose u have a connection pool class of ur own...


public class DBConnectionManager {

private static DBConnectionManager instance = null;

public static synchronized DBConnectionManager getInstance() throws DBConnectionPoolException
{
//
// If it has not been created yet, then instantiate the object
//

if (instance == null)
instance = new DBConnectionManager();

return instance;
}
//you can create pool of connection means open 50 connections to DB
//and supply as and when required

then
//getConnection
//close connection etc..

for the if u call once it will create 50 connections...so u cannot keep on initializting this class which will result in opening the connection every time

so we will restrict it to once..and will reuse the same instance

hope i addressed it if not let me know
}
[/quote]
oho general ga real time lo ekkadekkada use chestam?

[cherlapalli_jailer]

[color=#282828][font=helvetica, arial, sans-serif][size=3][background=rgb(247, 247, 247)]Dependency Injection[/background][/size][/font][/color]
[color=#282828][font=helvetica, arial, sans-serif][size=3][background=rgb(247, 247, 247)]neenu kooda goolging seyyavalasinde[/background][/size][/font][/color]

[king420]

[quote name='CNATION1' timestamp='1371677131' post='1303871619']
Yo!!! whats up..
[/quote]
anni down ee mayyaaa no up [img]http://i.imgflip.com/1tu9a.gif[/img]

[chinni005]

[quote name='cherlapalli_jailer' timestamp='1371677164' post='1303871622']
[color=#282828][font=helvetica, arial, sans-serif][size=3][background=rgb(247, 247, 247)]Dependency Injection[/background][/size][/font][/color]
[color=#282828][font=helvetica, arial, sans-serif][size=3][background=rgb(247, 247, 247)]neenu kooda goolging seyyavalasinde[/background][/size][/font][/color]
[/quote]
is also called IOC
[size=4] [/size]