Jar Interview Questions, Process, and Tips

Q1. He asked me about Theoretical Kotlin questions
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Q1. How your last experience a fit for this company?
Ans. 
My experience as a Category Manager in the retail industry aligns well with the needs of this company.
• Managed product categories to drive sales and profitability

• Developed strategic plans for assortment and pricing

• Worked closely with suppliers to negotiate contracts and promotions
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Q1. How did you imporve P&L in last organisation?
Ans. 
Implemented cost-saving initiatives and optimized product assortment to increase profitability.
• Analyzed sales data to identify underperforming products and discontinued them

• Negotiated better pricing with suppliers to reduce costs

• Implemented promotional strategies to drive sales and increase margins

• Optimized inventory levels to reduce carrying costs

• Introduced new product lines with higher profit margins
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Q1. How to start a new category?
Ans. 
The steps to start a new category involve market research, identifying trends, setting goals, creating a strategy, selecting products, and launching the category.
• Conduct market research to identify gaps and opportunities in the market.

• Identify trends and consumer preferences to determine the potential success of the new category.

• Set clear goals and objectives for the new category, including sales targets and market sha...read more
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Q1. Mostly on projects and previous tech knowledge
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Q2. Whats the difference between == and .equal()?
Ans. 
The difference between == and .equal() is that == is used to compare values for equality, while .equal() is a method used to compare objects for equality.
• The == operator is used to compare primitive data types like integers, strings, etc. for equality.

• The .equal() method is used to compare objects in Java for equality. It is typically overridden in classes to define custom equality logic.

• Example: int a = 5; int b = 5; ...read more
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Q3. What happens a primitive data type is passed in a method call and non-primitive data types are passes? when would there be change in value after downstream operation and opposite
Ans. 
Primitive data types are passed by value, while non-primitive data types are passed by reference. Changes in value can occur after downstream operations for non-primitive data types.
• Primitive data types (int, float, char, etc.) are passed by value, meaning a copy of the value is passed to the method. Changes made to the parameter inside the method do not affect the original value.

• Non-primitive data types (objects, arra...read more
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Q4. What are the common annotations used in spring boot
Ans. 
Common annotations used in Spring Boot for backend development
• 1. @RestController - used to define a controller and to indicate that the return value of the methods should be directly written to the HTTP response body

• 2. @RequestMapping - used to map web requests to specific handler methods

• 3. @Autowired - used for automatic dependency injection

• 4. @Service - used to indicate that a class is a service

• 5. @Repository - used ...read more
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Q5. Questions on get and post method
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Q6. Modified question on Trapping the rain water
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Q1. Basic HR type questions again, projects, tech
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Q2. Question on java 8 features and above, sql and no sql experience
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Q3. Reverse a string
Ans. 
Reverse a string by iterating through the characters and swapping them
• Create an empty string to store the reversed string

• Iterate through the characters of the input string from end to start

• Append each character to the empty string to reverse the string
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Q4. Stream API, advantages and uses
Ans. 
Stream API is a powerful tool in Java for processing collections of objects.
• Advantages include concise code, improved performance, and ease of parallel processing.

• Uses include filtering, mapping, sorting, and reducing data in collections.

• Example: stream.filter(x -> x > 5).map(x -> x * 2).collect(Collectors.toList());
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Dynamic Programming, Graph

Q1. Projects, SQL, DBMS, OOPS, Javascript
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Q1. Speak confidently
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