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| Interview Questions and Answers for 'Public' - 5 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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| Very Frequently asked across all type of companies and across all levels. | ||||
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| Ans. Private - Not accessible outside object scope. Public - Accessible from anywhere. Default - Accessible from anywhere within same package. Protected - Accessible from object and the sub class objects. | ||||
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| Discuss Correct / Improve java oop access specifier public private default protected public vs private vs default vs protected Asked in 12 Companies basic frequent | ||||
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| Ans. Class without any access specifier has the default scope i.e it can be accessed by any class within same package. Class declared public can be accessed from anywhere. | ||||
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| Discuss Correct / Improve java access specifier access modifiers public class class | ||||
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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 ?
