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A constructor is a special type of method that is automatically called when an object is created.
Constructors have the same name as the class they belong to
Constructors do not have a return type
Constructors can be used to initialize object properties
Singleton is a design pattern that restricts the instantiation of a class to one object.
Singleton pattern ensures that a class has only one instance and provides a global point of access to it.
Commonly used in scenarios where only a single instance of a class is needed, such as database connections or logging.
Implementation can involve a private constructor, a static method to access the instance, and a static variable...
Pointer in Java is a reference variable that points to the memory address of an object.
Pointers in Java are not directly accessible or manipulable by the programmer.
They are used behind the scenes for memory management and object manipulation.
Example: Integer x = new Integer(5); Integer y = x; // y now points to the same memory address as x.
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I applied via Campus Placement and was interviewed before Mar 2020. There was 1 interview round.
Triggers are database objects that automatically execute in response to certain events or changes in data.
Triggers are used to enforce business rules or data integrity.
They can be used to audit changes to data.
Triggers can be set to execute before or after an event, such as an insert, update, or delete operation.
They can be defined on tables, views, or schemas.
Examples of triggers include sending an email notification ...
I applied via Naukri.com and was interviewed in Sep 2020. There were 3 interview rounds.
I applied via Campus Placement and was interviewed in Jul 2021. There was 1 interview round.
I applied via Naukri.com and was interviewed in Jan 2021. There were 4 interview rounds.
I applied via Naukri.com and was interviewed before Jan 2021. There were 3 interview rounds.
I applied via Campus Placement and was interviewed before Aug 2021. There were 3 interview rounds.
The first round was an aptitude test with questions ranging from basic mathematical concepts to logical/analytical questions. English was also included in the test. The difficulty was medium and I was able to solve 70-80% of the questions.
Two coding questions were the part of the test. I was supposed to solve and pass all the test cases for both the questions. The coding questions tested my knowledge in the field of arrays, loops and pointers. I was able to solve one and partially solve another.
I applied via Naukri.com and was interviewed in Aug 2020. There was 1 interview round.
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