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Explain the substring() method in Java
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0
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33
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March 24, 2025
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How do you convert a String to an integer in Java?
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0
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21
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March 24, 2025
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What is the Java Collection Framework?
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0
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8
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March 24, 2025
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What is multiple inheritance? Does Java support multiple inheritance?
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0
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3
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March 24, 2025
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What is “this” keyword in Java?
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0
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7
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March 24, 2025
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What is the super keyword in Java?
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0
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13
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March 24, 2025
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What is the difference between a default constructor and a parameterized constructor?
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0
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108
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March 24, 2025
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How do microservices communicate with each other?
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0
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13
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March 24, 2025
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What are the Pros and Cons (benefits and challenges) of Java Microservices?
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0
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12
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March 24, 2025
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What are the key annotations used in Spring Data JPA and their purposes?
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0
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21
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March 24, 2025
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How do you configure and use Spring Data JPA in a Spring Boot application? Can you provide an example of a simple repository interface and a query method?
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0
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22
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March 24, 2025
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What is the purpose of the @Id annotation?
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0
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16
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March 24, 2025
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What is the role of the @Entity annotation in JPA?
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0
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11
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March 24, 2025
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What is the @SpringBootApplication annotation?
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0
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15
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March 24, 2025
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Which annotation is used in spring boot for scanning?
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0
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12
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March 24, 2025
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How does HashMap work internally and how does it handle collisions?
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0
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58
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March 24, 2025
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Briefly explain the concept of autoconfiguration in Spring Boot
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0
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16
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March 24, 2025
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What are static methods and how are they used?
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0
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8
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March 24, 2025
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What are Memory storages available with JVM?
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0
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15
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March 24, 2025
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If @Valid annotation fails in Request, what will Spring respond back with?
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0
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74
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March 24, 2025
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When you run more than one controller instance, your server will not start because of port clash right? How were you able to run multiple controller tests simultaneously?
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0
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25
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March 24, 2025
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What is Spring Data? Or there other ways of accessing Mongo data? Are you aware about Hibernate?
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0
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7
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March 24, 2025
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Let’s say you don’t handle an error and at runtime an exception gets thrown - what will the client see - 4xx or 5xx HTTP error? If you didn’t handle the error, who converts your exception into HTTP error?
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0
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21
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March 24, 2025
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Is blindly having @Data in all classes a good habit? Why/why not?
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0
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14
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March 24, 2025
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Can you run your spring server on any port? Are there any challenges with that? How did you change ports when you were experimenting?
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0
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25
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March 24, 2025
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Let’s say one of your controller code has divide by zero exception. Will your server crash or will it accept more requests? Why/How?
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0
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17
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March 24, 2025
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What is the difference between compareTo() and equals()?
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0
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34
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March 24, 2025
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What is hashcode and where is this method has implemented? What if the same hashcode is generated for 2 values?
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0
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31
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March 24, 2025
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What are Singleton classes? What are some real-world examples of Singleton pattern?
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0
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28
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March 24, 2025
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What is Rest API? How is it different from HTTP?
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0
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23
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March 24, 2025
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