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architecture of my application. 6) lazy loading. 7) which is the primary key in the below table - u prefer? Village no shop no 100 1 100 2 101 1 101 2 8) how do u declare composite key in hibernate? 8)what is the difference between interface /abstractio(when do u use them). 9) which is more better approach (inf / abstrract) 10)what are Design patterns u know ? 11)String literal pool - String A="R"; A=A+"P"; What happens to string "R"(first initialization) - 12)public jre / private jre. 13)new features in 1.7 (only 1.7) 14)concurrent package. 15)Difference between ReEntrant lock and synchronized block. 16)any issues in project? - how u handeled? 17) how did u find which class has memory issue? 18)Why Map interface ? 19) sort Arralist od strings. 20) equals and hashcode? 21) comaparator's compare method does the comaprision on what objects? (ob1 and ob2???) 22)difference between session.get() and session.load() 23)Name the classes you have written in your project. 24) String A="ORACLE Financial Services" String B = "ORACLE"; find B in String A? 25) customized Exception? - have you written any? 26) can a abstract class be final? 27) why /what /how multithreading ?
avatar

Applications Developer

Interviewed at Oracle

3.5★
Dec 16, 2013

architecture of my application. 6) lazy loading. 7) which is the primary key in the below table - u prefer? Village no shop no 100 1 100 2 101 1 101 2 8) how do u declare composite key in hibernate? 8)what is the difference between interface /abstractio(when do u use them). 9) which is more better approach (inf / abstrract) 10)what are Design patterns u know ? 11)String literal pool - String A="R"; A=A+"P"; What happens to string "R"(first initialization) - 12)public jre / private jre. 13)new features in 1.7 (only 1.7) 14)concurrent package. 15)Difference between ReEntrant lock and synchronized block. 16)any issues in project? - how u handeled? 17) how did u find which class has memory issue? 18)Why Map interface ? 19) sort Arralist od strings. 20) equals and hashcode? 21) comaparator's compare method does the comaprision on what objects? (ob1 and ob2???) 22)difference between session.get() and session.load() 23)Name the classes you have written in your project. 24) String A="ORACLE Financial Services" String B = "ORACLE"; find B in String A? 25) customized Exception? - have you written any? 26) can a abstract class be final? 27) why /what /how multithreading ?

Most Questions are from DB only. But they have also asked questions from JAVA,C,OS,Web Technology(Some Very Basic questions). In DBMS they started like “I am organising a Sports days event. Some events are solo events and some events are Group events.” So I have to design a table to manage the info reg the participants and also they gave some scenarios . One cannot participate more than 3 events maximum of 1 group event and 2 solo event. For the Group Events only 12 teams are allowed.
avatar

Applications Developer

Interviewed at Oracle

3.5★
Apr 19, 2018

Most Questions are from DB only. But they have also asked questions from JAVA,C,OS,Web Technology(Some Very Basic questions). In DBMS they started like “I am organising a Sports days event. Some events are solo events and some events are Group events.” So I have to design a table to manage the info reg the participants and also they gave some scenarios . One cannot participate more than 3 events maximum of 1 group event and 2 solo event. For the Group Events only 12 teams are allowed.

He gave a problem, of writing a program to find out all the combinations of the letters of a word, while keeping the order of the letters intact and not rearranging the sequence of letters. He asked me to write two programs in Java, one for sequential execution and the other using multi-threading.
avatar

Applications Engineer At Oracle

Interviewed at Oracle

3.5★
Dec 10, 2012

He gave a problem, of writing a program to find out all the combinations of the letters of a word, while keeping the order of the letters intact and not rearranging the sequence of letters. He asked me to write two programs in Java, one for sequential execution and the other using multi-threading.

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