Written 1> Write a program to count the no. of occurrence of word in given string Ex- Ram is good boy. Ram is doing good job. Ram 2 is 2 good 2 boy 1 doing 1 job 1
2> Write a program to search the student record on the basis of binary search where records are search on the basis of roll no.
1> write a program to reverse the string? U cant use extra space instead some counter variables? Ex- Life is beautiful. Outputbeautiful is Life. 2> Write a program to count the no. of vertices connected to a vertice in graph using adjancy list.
I cleared the written test and called for interview. There r 2 technical interview and 1 hr interview.
1 technical interview on 22 oct 2007
Sir: with hand sacked Hello, I m mr. jha Sir: tell me abt urself. Me: said Sir: why u have chosen j2me and blue tooth technology Me: as I told in my intro I hve done Blue Presenter system as major project in my last sem., which is based on bluetooth technologies. Sir, We want to be different from the people thats why we have chosen these technologies. Sir: wht is this blue presenter Me: said. Sir: ur favorite subjects Me: data structure, database, Uml and Oops concepts Sir: lets first talk abt ds, What is data structure Me: said Sir: why we use data structure Me: said Sir: do u know types of data structure, linear and non-linear Me: I thought, he will definitely ask me abt graph, so I was socked and looking to the sir Sir: wht is nonlinear data structure? Me: Sir, Graph and Tree are nonlinear data structures Sir: How many types of tree do u know Me: binary tree, avl tree, b+ tree, multi-way tree, balanced tree, and threaded tree. Sir: which searching algorithms are used for tree? Me: after sometime, I replied, sir, preorder, inorder and postorder. Sir: just tell me post order of this tree Me: said Sir: explain me, how u get this Me: explained Sir: tell me the algo to search the tree level wise 1 2 3 4 5 6 7 o/p? 1 2 3 4 5 6 7 Me: first I just made a adjancy list and told sir we can get it from this Sir: tell me how u hve converted this tree into it while I m having only root node address Me: sorry sir, can I try for other way Sir: ya sure, Me: had tried 2-3 times and finally, Sir: wht happened Me: sir I got one solution but it produces twice the second level Sir: while u go to the 3 level it will print it thrice. Just explain me wht u r trying Me: explained Sir: just left it. Lets talk abt link list, how to delete a node from linked list Me: sir, from where start or end or by value Sir: given me one linked list, told me just delete the node whose value is 3 Me: I have written a code to delete that node Sir: but it cant work in the case if its first node Me; tried, really its not working, I tried in other way, but I didnt able to write general code its was very embarrassing for me becoz I love linked list and not able to write this simple code that time. Sir: tell me the logic Me: explained, and it was right, I know Sir: wht r the advantage of C over Cpp? Me: said Sir: what is oops concept? Me: explained, Sir: what is used in the case of template classes Me: sir, reusability Sir: is it oops concept Me: no sir, Inheritance is used in template classes Sir: Do u know database Me: yes sir Sir: wht is normalization? Me: said Sir: why we use de-normalization? Me: said Sir: what is ACID? Me: sir they r properties of transaction, Atomicity, Consistency, Isolation and durability. Sir: Do u want to ask me any question? Me: I thought I was not cleared the interview? And I asked sir, in which technologies ur working? Sir: all, java, .net c, cpp Me: sir, any suggestion for me, as I m fresher, dont aware of the industries environment Sir: U hve made good project in ur curriculum, u just do search on net wht new technologies is coming in market. Thats it. Me: thank u sir, nice to meet u Sir: wait down the stair and send the next candidate.
I was cleared the first round and called for second technical tomorrow
2 technical Me: May I come in sir Sir: yes plz, hve a seat Me: thank u sir Sir: looking to my written test sheet and first interview marks, U have asked abt ds, c/cpp and database in first interview Me: yes sir Sir: lets talk abt java? From where u hve made final sem project Me: sir, from college Sir: tell what is blue presenter system Me: explained, Sir: have u use any API or implemented it itself Me: Sir we have used bluecove API, which is freely available on the net. Sir java doesnt hve direct support for com, and we have to use third party sw, since we r fresher dont have enough money to invest, we have used vb for com support. Using socket-server programming communicated java and vb. Sir: meanwhile another sir has come in the cabin Sir: sir, he has made a project in bluetooth technology, do u want to ask any questions? 2 Sir: how r u controlling the applications Me: Sir, we have implemented one client application which is installed on mobile phone and one server application which is running on desktop pc. 2 Sir: how to installed client application on mobile. Me: sir, just send the jar file to mobile and select that file it ask u, U want to installed the application and follow the instructions. 2 Sir: what is the use of ur application? Me: sir, while we giving presentation, there is a headeck of synchronization between operator and presenter, or while u want to change the slide u have to come near the PC or Laptop means u r not free to give walk around presentation.
This application free u from this restrictions and walk around presentation improve presentation performance, u can see the list of slide titles on ur mobile, back and forth the slide or even see the slide notes on ur hand. 1 Sir: wht security u hve used in this project? Me: there is no use of security in this project, only one mobile is connected to pc at a time 1 Sir: let consider I m connected to Pc and shutdown the Pc and some one want to control any application. Me: sir, using pass key u connected to the PC, its the functionality of bluetooth device. Sir when u shutdown the system our application is terminated which is running on PC and then mobile application. So, no other person will perform any operation. Sir: what is J2Me? Me: said very well Sir: what is the difference between desktop application and mobile application? Me: said perfectly Sir: what criteria r considered while implementing mobile application? Me: Sir, since mobile application have less memory and power capability, we have to take care of memory, so that performance of the device is not degraded. Sir: Do u know design pattern? Me: yes sir, Singleton pattern and factory pattern Sir: What is Singleton pattern Me: explained with example Sir: write the code for singleton pattern Me: yes sir, Class A { private static A a; private A() {} public static A getObject() { if(a.equals(null)) a=new A(); else return a; } } Sir: what is the difference between equals m/d and == equal to? Me: said perfectly Sir: can we use == instead of equals m/d in this code Me: sir yes Sir: modify the code Me: yes sir Sir: I think it wont return or return is missing in this code? Me: yes sir, I modified the code Class A { private static A a; private A() {} public static A getObject() { if(a==null) return (a=new A()); else return a; } } Sir: I want to reduce the line of code and use only one return? Me: yes sir, I modified the code once more, sir just remove the else and one return Class A { private static A a; private A() {} public static A getObject() { if(a==null) a=new A(); return a; } } Sir: if there r 2 thread running then what happened with this code Me: sir as a is a static member of class, it is shared among both thread Sir: but second thread overrides the 1st instance Me: sir it may happen Sir: if 2 threads is running simultaneously then, how many times new is called Me: thinking, I answered sir once Sir: if at the same time both threads at a==null, both find a==null and create the instance then Me: I was in dilemma; I remembered its just like a dirty read problem, and after sometime Sir: think dear, use pen and paper Me: after that I answered sir, new is called twice, we can avoid this problem using synchronization Java support 2 types of synchronization semaphore and monitor Semaphore: when we use synchronized before variables, its called Monitor: when we use synchronized before m/d its called monitor or using synchronized block And I modified the m/d signature as Synchronized public static A getObject(){ } Sir: synchronized is used before access modifier Me: no sir, after access modifier, since on page I didnt find space after public I written it before Sir: what is factory pattern? Me: I didnt work on it sir, but I know why we use it and what is the utility of it, and explained it with example. Sir: Lets move to data structure, very simple question Me: yes sir Sir: what is the difference between stack and queue? Me: explained with example Sir: looking to my written and objective answer sheet, (as I got 5 marks out of 7 in OS), Do u know OS? Me: yes sir Sir: what is paging? Me: I explained whole procedure and why we use paging Sir: anil, do u know database Me: yes sir Sir: what is transaction? Me: sir, transaction is a logical unit of set of operation, which is execute all operation or none. Sir: What is ACID? Me: said Sir: U wants to work in java or C Me: sir, its totally depends on organization requirement. Sir: ya I know but tell me whether java or C Me: sir, I more interested in java but I dont have problem in C, if organization needs me to work in C, I can do so. Sir: Ok anil Me: thank u sir, nice to meet u..
Before HR interview, assistance hr came and told me we got some comment on ur interview.. and after that told me but its positive side, ok come at 2:30 oclock, its 12:30 oclock. Sir its too let Sir: no its ok, come at 2:30 after taking lunch While I was waiting for lift, sir had come and told me after 10 min ur hr round will be taken, do u hve any problem Me: No sir
HR Sir: be comfortable Me: yes sir Sir: from when u r in pune Me: sir, from 5-6 days Sir: u hve given any other companies interview Me: yes sir, CSC, nec-hcl and persistent in our college campus and I was out from final round Sir: what turns u back Me: means what sir Sir: what u have done in theses days and performed very well in interviews Me: sir, I have worked on my technical skills, and basically I was working on my communication skills, I think my public speaking skill is not good Sir: what u hve done for it? Me: sir, talking with friends, reading news papers and I have joined many communities on Internet and orkut and reading articles over there Sir: which article you have read recently? Me: sir its of bluetooth and laser technologies, u can access laptop or pc without mouse or keyboard using laser technologies. There is no need to connect mouse and keyboard. Sir: who is the author of this article? Me: sir, its general discussion group, there is no specific writer Sir: how frequently do u open these discussion group Me: sir, whenever I find time Sir: what is the charge of Internet in indore? Me: sir, 10 rs per hour, but I m not living in indore, my father is transferred from ujjain to dhar. Sir: how far you have to travel to access net Me: sir, 3-4 km Sir: which game do u play? Me: cricket Sir: ohh boring game Me: sir, its good for health and I learned team working there Sir: do u play professional cricket or gali cricket Me: sir, I didnt play professional cricket, I played in college with my friends Sir: how frequently do u play Me: sir, I didnt find time to play cricket now Sir: another game which u play Me: carom, badminton and computer games. Sir: do u have racket in ur home Me: yes sir, Sir: Anil, tell me about ur self Me: said, and at last I said I am a person who enjoys challenges and looking for creative solutions to the problem. Sir: do u solve puzzles? Me: not frequently sir, but ya when I find, I can Sir: I am giving u one puzzle solve it Me: there r 2 buckets 1 is of 5 liter and one 6 liter, 3rd bucket of 20 or 25 liter, and 1 nal which can produce water, U have to measure 9 liter water without wastage of water Wastage of water means? once water is taken from nal other then 9 liter is wastage of water Me: I am thinking Sir: how much time will you take? Me: sir, 5 minute, I am still trying to solve it and ask sir not single liter wastage Sir: tell me what is the puzzle Me: I explained Sir: ok, solve it Me: I got one solution but there is 1-liter wastage Sir: have u solved it Me: yes sir, but there is 1-liter wastage of water Sir: tell me the solution Me: I explained Sir: try without wastage Me: I tried in other way but still there is 1-liter wastage Sir: sir, what happened? Me: sir, I got 2 m/d but in both cases, there is 1-liter wastage of water Sir: so what do you think? There is no solution without water Me: sir, I think so Sir: just take a 6-liter water put it to 5-liter bucket, what remains Me: 1 liter Sir: put it into big bucket now try to solve it Me: I was trying, 2 hr Sir: told me ur 5 minute is over, Me: sir, I am trying 1Sir: what u cant find the solution? Me: sir, I will ask to my friends, Sir: if no one is around u then Me: sir, I go to the net, and search the solution, put the query on the puzzle communities that I have joined, and ask for solution Sir: its means I have to change the question next time Me: sir, if I dont find the answer I will definitely do that Sir: put 5-liter water from 5-liter bucket to 6 liter and take one-liter water from nal, now Me: yes sir, we can do like that 5 times Sir: 5 times?????????? Me: sorry sir 4 times Sir: 4 times???????? Me: no sir, in 3 times we can measure 9-liter water without wastage. Sir: now what I have to do? Me: sir, what can I say? Sir: why r u here? Me: sir, to be a part of persistent Sir: so ask me Me: sir, will I selected? Sir: yes u r selected, now just behave like an employee of persistent Me: I was very happy and smiling Sir: do u want to ask me any question? Me: no sir, Sir: r u sure, u dont want to ask any question? Me: sir, what is the package Sir: 3.0 Me: sir, what abt the bound? Sir: we dont have any written bound just oral bound Me: sir, what abt the training? Sir: its abt 2 and half month on r skills, when do u want to join Me: sir after diwali Sir: be comfortable, interview is over, just talk in normal way Abhi de de offer letter Me: yes sir, Sir: document is not ready this time, when will u return from home Me: 10 nov Sir: when will u come for offer letter Me: sir, on 11th nov Sir: ok, we will send u mail, just put ur bag here and come with us to take lunch Me: thank u sir, both hr told me congrats and then, one hr mam has come there and told me congrats
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