Alchemy Techsol India UI Developer Interview Questions and Answers

Q1. How pagination work in jpa
Ans. 
Pagination in JPA allows for retrieving a subset of results from a query by specifying a limit and offset.
• Use the setFirstResult() method to specify the starting index of the results to retrieve

• Use the setMaxResults() method to specify the maximum number of results to retrieve

• Combine setFirstResult() and setMaxResults() to implement pagination in JPA queries
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Q2. How to create restful api
Ans. 
To create a RESTful API, define endpoints, use HTTP methods, handle requests and responses, and follow REST principles.
• Define endpoints for different resources (e.g. /users, /products)

• Use HTTP methods like GET, POST, PUT, DELETE for CRUD operations

• Handle requests and responses in JSON format

• Follow REST principles like statelessness, uniform interface, and client-server architecture
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Pseudocode problems and 2 coding questions

Q1. Introduction, family background, logical question of English alphabet
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Q1. AI/ML trends, bitcoin info
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Q2. Java code for finding even number
Ans. 
Java code to find even numbers in an array
• Iterate through the array and check if each element is divisible by 2

• Use the modulus operator (%) to check for even numbers

• Store the even numbers in a separate array or print them out
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Q3. Basic questions about technologies mentioned in the resume
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Q1. Intro, family background
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Q2. HTML, CSS, JAVA, CPP code
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Q3. Logical Questions
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Q4. Speaking Communication
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Q1. Technology related
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Q2. Programming related
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Q1. Why should we choose you?
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Q1. Be cool as a cucumber.
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Javascript & Angular question -
1. Write piece of code to display the array item using iteration method?
2. Write piece of code for API integration using services ?
3. What is the method of data transferring in Angular Components ?
4. What is Routing ?

Q1. Angular Question 1. What is the difference between Angular 8 and Angular 12 version ? 2. What is Call Back Function ? 3. What is Life Cycle Hooks ? 4. How to handle large data transferring from Backend ?
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Q1. Difference between function store productor
Ans. 
A function is a reusable block of code that performs a specific task, while a stored procedure is a group of SQL statements that can be executed together.
• Functions return a value, while stored procedures do not necessarily return a value.

• Functions can be used in SQL statements like SELECT, WHERE, etc., while stored procedures cannot be used in such statements.

• Stored procedures can have input and output parameters, whil...read more
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Q2. Highest second salary
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Q3. What join and type explain each
Ans. 
Different types of joins in SQL and their explanations
• 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

• Cross Join - returns the Cartesian produc
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Q1. Why you left last job
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Q2. Introduction your self
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Q3. Decision about the salary
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Q1. Introduction myself
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Q2. Core based questions
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Q1. Asked to count the top m frequent word of n length in pdf
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Q1. Easy level aptitude questions and OOPs questions
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Q1. A medium level programming question and question on top trending technology
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