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| Interview Questions and Answers for 'Tavant' - 8 question(s) found - Order By Newest | ||||
 Very frequently asked. Among first few questions in almost all interviews. Among Top 5 frequently asked questions. Frequently asked in Indian service companies (HCL,TCS,Infosys,Capgemini etc based on multiple feedback ) and Epam Systems | ||||
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| Ans. "equals" is the method of object class which is supposed to be overridden to check object equality, whereas "==" operator evaluate to see if the object handlers on the left and right are pointing to the same object in memory. x.equals(y) means the references x and y are holding objects that are equal. x==y means that the references x and y have same object. Sample code: String x = new String("str"); String y = new String("str"); System.out.println(x == y); // prints false System.out.println(x.equals(y)); // prints true | ||||
 Sample Code for equals | ||||
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 Discuss Correct / Improve  java string comparison string object class == equals object equality operator == vs equals equals vs ==  Asked in 294 Companies  basic  frequent | ||||
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| Frequently asked question in companies using Hibernate. | ||||
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| Ans. It's a feature to lazily initialize dependencies , relationship and associations from the Database. Any related references marked as @OneToMany or @ManyToMany are loaded lazily i.e when they are accessed and not when the parent is loaded. | ||||
| Sample Code for Lazy Initialization | ||||
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| Discuss Correct / Improve hibernate lazy loading hibernate lazy initialization hibernate architecture Asked in 77 Companies Basic frequent | ||||
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| Ans. Vectors are synchronized whereas Array lists are not. | ||||
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| Discuss Correct / Improve java basic interview question vector arraylist collections synchronization vector vs arraylist Asked in 35 Companies basic frequent | ||||
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| Ans. A static initialization block is a normal block of code enclosed in braces, { }, and preceded by the static keyword. Here is an example: static { // whatever code is needed for initialization goes here } A class can have any number of static initialization blocks, and they can appear anywhere in the class body. The runtime system guarantees that static initialization blocks are called in the order that they appear in the source code. | ||||
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| Discuss Correct / Improve java oops static static block Asked in 16 Companies basic frequent | ||||
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| Ans. Lazy fetching is the technique of not loading the child objects when parent objects are loaded. By default Hibernate does not load child objects. One can specify whether to load them or not while doing the association. | ||||
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| Discuss Correct / Improve hibernate lazy fetching architecture Asked in 11 Companies frequent | ||||
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| Ans. Google OAuth can be used when we want to grant the access of our google credentials to the service provider ( most likely a cloud-based mobile application) by using the option ' Login via Google' | ||||
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| This question was recently asked at 'Tavant Technology'.This question is still unanswered. Can you please provide an answer. | ||||
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| Ans. Yes, an abstract class can have a constructor in Java. | ||||
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| Discuss Correct / Improve abstract class public constructor Asked in 1 Companies | ||||
Which of the following statement is not true ?
