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I applied via Recruitment Consulltant and was interviewed before Jun 2023. There were 2 interview rounds.
Asked to write java MVC architecture and asked question on it.
Collection framework provides interfaces and classes to store and manipulate groups of objects. Lists are preferred for ordered collections.
Lists maintain insertion order and allow duplicates
Lists provide indexed access to elements
Lists are suitable for scenarios where elements need to be accessed by index or need to be inserted/removed frequently
JDK stands for Java Development Kit. Java runs on JDK and no other tool is required.
JDK is a software development kit used for developing Java applications.
It includes tools such as Java compiler, JRE, and other development tools.
Java runs on JDK as it provides all the necessary tools and libraries for compiling, debugging, and running Java programs.
Yes, JSP stands for JavaServer Pages. It is a technology used to create dynamic web pages.
JSP lifecycle includes translation, compilation, initialization, execution, and destruction phases.
During translation phase, JSP engine generates a servlet from the JSP page.
Compilation phase involves compiling the generated servlet into bytecode.
Initialization phase initializes the servlet, including calling the init() method.
Exe...
Struts is a framework used for developing Java web applications.
Struts is a framework that implements the Model-View-Controller (MVC) design pattern.
It provides a set of JSP custom tags to help developers create interactive web applications.
Struts configuration is typically done using XML files.
Struts actions are Java classes that handle requests from the user and interact with the model.
Struts is often used in combina...
Yes, SQL is a standard language for managing databases. DDL is for defining structure, DML is for manipulating data.
DDL stands for Data Definition Language and is used to define the structure of database objects like tables, indexes, etc.
DML stands for Data Manipulation Language and is used to manipulate data in the database like inserting, updating, deleting records.
Example of DDL: CREATE TABLE Employees (ID INT, Name...
Different types of joins in SQL are inner join, left join, right join, and full outer join.
Inner join: Returns rows when there is at least one match in both tables.
Left join: Returns all rows from the left table and the matched rows from the right table.
Right join: Returns all rows from the right table and the matched rows from the left table.
Full outer join: Returns rows when there is a match in one of the tables.
Join...
Aggregate functions perform calculations on a set of values and return a single value.
Used with SELECT statement to return a single value calculated from multiple rows
Examples include SUM, AVG, COUNT, MAX, MIN
Can be used with GROUP BY clause to group results by a specific column
Different types of Join in SQL
Inner Join - returns only matching rows from both tables
Left Join - returns all rows from left table and matching rows from right table
Right Join - returns all rows from right table and matching rows from left table
Full Outer Join - returns all rows from both tables
Cross Join - returns Cartesian product of both tables
Difference between delete vs drop vs truncate
DELETE is used to remove specific rows from a table
DROP is used to remove an entire table from the database
TRUNCATE is used to remove all rows from a table
DELETE can be rolled back, DROP and TRUNCATE cannot be rolled back
DELETE is slower than TRUNCATE and DROP
Top trending discussions
I am a highly skilled System Engineer with expertise in designing and implementing complex systems.
Experienced in managing and troubleshooting network infrastructure
Proficient in virtualization technologies such as VMware and Hyper-V
Strong knowledge of operating systems like Windows and Linux
Familiar with scripting languages like PowerShell and Bash
Excellent problem-solving and communication skills
Yes, I have experience working in teams.
I have worked on several group projects during my studies.
I have collaborated with colleagues to solve complex technical problems.
I have participated in cross-functional teams to implement system upgrades.
I have also been part of agile development teams, working closely with software engineers and testers.
One example of teamwork is when I led a team of engineers to successfully d
A C code that prints out the elements of an array of strings.
Declare an array of strings
Use a loop to iterate through the array
Print out each element
The probability of rain in Chennai today depends on various factors such as season, weather conditions, and location.
The probability can be estimated by analyzing the current weather patterns and historical data.
Factors such as humidity, temperature, and wind speed can affect the probability of rain.
Local weather forecasts and satellite imagery can also provide insights into the likelihood of rain.
The probability of ra...
It is impossible to accurately predict the probability of India winning the next Cricket World Cup.
Sports events are unpredictable and depend on various factors such as team performance, weather conditions, injuries, etc.
Past performance of the team and individual players can be considered, but it does not guarantee future success.
Other teams participating in the tournament also play a significant role in determining t...
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