SSP Technology Java Developer Interview Questions and Answers

Aptitude it is a type of test in which there are many questions like resigning, technical,blood relation.etc

In group discussion we have provided some topic and told discuss about that topic and tell advantages and dis advance.

Q1. What is final in java
Ans. 
final keyword in Java is used to restrict the user from changing the value of a variable, making it a constant.
• Final keyword can be applied to variables, methods, and classes

• Final variables cannot be reassigned once initialized

• Final methods cannot be overridden in subclasses

• Final classes cannot be extended
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Q2. What is static In java?
Ans. 
Static keyword in Java is used to create class-level variables and methods that can be accessed without creating an instance of the class.
• Static variables are shared among all instances of a class.

• Static methods can be called without creating an object of the class.

• Static blocks are used to initialize static variables.

• Example: public static int count = 0;
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Q3. The static it is a type of method called static method in which when we declared a method as static then it can't be inherited another class
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2 coding question were asked

Q1. Question were basic related to html, css, java
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Q2. Basic OOPS question and how to create table in html
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Q1. Where you find yourself in 5 years
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Q2. Basic friendly talk regarding your life
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Q1. Intro about Experience
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Q2. Knowledge on tools
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Q1. Sdfsfd kjdk dvfikjsf vsjv
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Q2. Sdjvks sdkvjsk skdcj
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Giva a Full stack project. based on MERN AND MEAN stack

Q1. Dsa , were easy to medium
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Q2. Some backend and azure related questions
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Q1. Oops Concept in c#
Ans. 
Oops concept in C# refers to Object-Oriented Programming principles like inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation hides the internal state of an object and only exposes necessary information.

• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• Abstraction focuses on...read more
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Q2. Manage and unmanaged code
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Q3. Dependency injection
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Q4. Filter and its type
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A filter is a tool used to select specific data from a larger set based on certain criteria.
• Filters can be used in various programming languages and databases to narrow down results.

• Types of filters include text filters, numeric filters, date filters, and custom filters.

• Examples of filters include WHERE clause in SQL, filter() function in Python, and filter() method in JavaScript.
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Q5. View in sql server
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A view in SQL Server is a virtual table that contains the result set of a SELECT statement.
• Views are used to simplify complex queries by storing them as a virtual table.

• Views can be used to restrict access to specific columns or rows of a table.

• Views can be created using the CREATE VIEW statement.

• Example: CREATE VIEW vwEmployee AS SELECT FirstName, LastName FROM Employees;
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Q6. Primary key vs unique key
Ans. 
Primary key uniquely identifies a record in a table, while unique key ensures uniqueness but allows null values.
• Primary key enforces uniqueness and not null constraint on a column

• Primary key can consist of multiple columns

• Unique key enforces uniqueness but allows null values

• Unique key can be applied to multiple columns as well
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Q7. Procedure vs function
Ans. 
Procedures are a set of instructions that perform a specific task, while functions return a value after performing a task.
• Procedures do not return a value, while functions do.

• Functions can be called within expressions, while procedures cannot.

• Functions are more versatile and reusable compared to procedures.
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Q8. Trigger in sql server
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A trigger in SQL Server is a special type of stored procedure that automatically executes when certain events occur in a database.
• Triggers can be used to enforce business rules, audit changes, or replicate data.

• There are two main types of triggers in SQL Server: DML triggers and DDL triggers.

• DML triggers fire in response to data manipulation language (DML) events like INSERT, UPDATE, and DELETE.

• DDL triggers fire in res...read more
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Q9. Interface in c#
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Interface in C# is a reference type that defines a contract for classes to implement certain methods and properties.
• Interfaces cannot have implementation, only method signatures and properties.

• Classes can implement multiple interfaces in C#.

• Interfaces are used to achieve abstraction and multiple inheritance in C#.

• Example: public interface IShape { void Draw(); }

• Example: public class Circle : IShape { public void Draw()
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Q10. Abstract class vs interface
Ans. 
Abstract class is a class that can have both abstract and non-abstract methods, while interface is a contract that defines methods that must be implemented by a class.
• Abstract class can have constructor, fields, and methods, while interface cannot have any implementation.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Abstract classes are used when some common functionality needs ...read more
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Q11. Partial view in.det
Ans. 
Partial view in ASP.NET MVC allows reusing common UI elements across multiple views.
• Partial views are like reusable components that can be included in multiple views

• They help in reducing code duplication and improving maintainability

• Partial views are rendered using Html.Partial or Html.RenderPartial methods
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Q12. Method overloading vs overriding
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Method overloading is having multiple methods in the same class with the same name but different parameters. Method overriding is redefining a method in a subclass with the same name and parameters as in the superclass.
• Method overloading involves multiple methods with the same name but different parameters.

• Method overriding involves redefining a method in a subclass with the same name and parameters as in the superclas...read more
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Q13. Union vs union all
Ans. 
Union combines and removes duplicates, while union all combines all rows including duplicates.
• Union removes duplicates, while union all includes duplicates.

• Union is slower as it has to remove duplicates, while union all is faster.

• Use union when you want to remove duplicates, use union all when duplicates are acceptable.
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Q14. Foreign key In sql
Ans. 
Foreign key in SQL is a field in a table that links to a primary key in another table, enforcing referential integrity.
• Foreign key constraints ensure data consistency between related tables

• Foreign key values must exist in the referenced table's primary key column

• Foreign key can be used to establish relationships between tables
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Q15. Constructor in c#
Ans. 
Constructor in C# is a special type of method that is automatically called when an instance of a class is created.
• Constructors have the same name as the class and do not have a return type.

• They can be used to initialize the data members of the class.

• Constructors can be overloaded to have multiple versions with different parameters.

• Example: public class Person { public Person(string name) { this.Name = name; } }
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Q1. Tell me about your project
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Q2. Salary discussion
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Q1. Strecture of sql statement
Ans. 
SQL statements are used to interact with databases by performing operations like querying, updating, and deleting data.
• SQL statements are made up of keywords like SELECT, INSERT, UPDATE, DELETE, etc.

• They are structured in a specific order, with clauses like WHERE, ORDER BY, GROUP BY, etc.

• Tables are referenced using their names, and conditions are specified to filter data.

• Joins can be used to combine data from multiple
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Basic coding questions (non-DSA) - Basic questions to reverse a string, check if string is palindrome, etc. If you have basic coding skills, you'll easily clear this round

Q1. Interview with CEO - Questions were asked based on technical skills - basic questions related to Database, backend technologies.
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Q2. Behavioral questions will be asked
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JavaScript, React Js

Q1. How many years of relevant experience
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Q2. What is your current CTC
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Q3. What is your Expectation
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Q1. What is your Strength
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Q2. What is weakness
Ans. 
One weakness I have is that I can be overly critical of my own work, which can sometimes lead to self-doubt.
• I tend to overthink things and can be indecisive at times

• I have a tendency to take on too many tasks at once, leading to feeling overwhelmed

• I struggle with public speaking and often get nervous in front of large groups
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Q3. What is your Goal
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