Instant Systems Interview Questions, Process, and Tips

Aptitude test was the mixture of common aptitude questions along with sql, basic javascript and java language basic questions and couple of simple coding questions like febinachi series, palindrom pattern etc .

Q1. They started from basic of java and some frameworks like springboot and then moved to advance of these topics.
Add your answer
Q2. Springboot annotations Opps concept run-time and compile time polimorphisam SQL quesries for Select and Joins
Add your answer

Q1. Level 2 interview from the same topics along with abstraction and interface Constructor overriding is possible or not? dependency injection
Add your answer
Q2. Ways to create object in java.
Ans. 
Objects in Java can be created using the 'new' keyword, constructors, and factory methods.
• Use the 'new' keyword followed by the class name to create an object

• Objects can also be created using constructors to initialize the object's state

• Factory methods can be used to create objects without exposing the instantiation logic
Answered by AI
Add your answer

There was basic GD topic

Q1. Google form was shared in which 15 questions were there and 3 were apti questions (work ,time ,speed) and others were from java programming and the time given was 2 hours.
Add your answer

Q1. In this only you will be asked theoretical questions like DBMS, JAVA, Programming, Your Project for programming he will ask only logic and will not ask you to code.
Add your answer

Q1. Count the number of words and their frequency
Ans. 
Count the number of words and their frequency
• Split the given text into words using whitespace as delimiter

• Create a dictionary to store the word frequency

• Iterate through each word and update the frequency in the dictionary

• Return the dictionary with word frequency
Answered by AI
Add your answer
Q2. Count frequency of characters.
Ans. 
Count the frequency of characters in a given string.
• Iterate through the string and use a hash map to store the count of each character.

• Initialize the count of each character to 0 and increment it as you encounter the character.

• Finally, iterate through the hash map to get the frequency of each character.
Answered by AI
Add your answer
Q3. Reversing the array
Ans. 
Reverses an array of strings
• Use a loop to iterate through half of the array

• Swap the elements at the current index with the corresponding element from the end of the array
Answered by AI
Add your answer
Q4. Implementing the comparator function for sorting
Ans. 
Implementing the comparator function for sorting an array of strings.
• Use the built-in sort() function in most programming languages.

• Define a custom comparator function that compares two strings.

• Return a negative value if the first string should come before the second, a positive value if it should come after, and 0 if they are equal.

• Example: ['apple', 'banana', 'cherry'] can be sorted in alphabetical order using the co
Answered by AI
Add your answer

Any topic can be given

Related to java

Q1. Difference between Assert and verify
Ans. 
Assert checks if a condition is true, while verify checks if a condition is true and reports if it is false.
• Assert is used to validate the expected result of a test case

• Verify is used to validate the actual result of a test case

• Assert throws an exception and stops the test execution if the condition is false

• Verify reports the failure but continues with the test execution

• Assert is used for critical validations, while ve
Answered by AI
Add your answer
Q2. Verification and validation
Add your answer
Q3. SDLC Models like agile model and V model
Add your answer
Q4. Process of manual testing
Ans. 
Manual testing involves executing test cases manually without the use of automation tools.
• Identify test scenarios and create test cases

• Execute test cases and record results

• Report defects and retest after fixes

• Perform regression testing

• Ensure test coverage and traceability
Answered by AI
Add your answer
Q5. Regression and retesting
Add your answer

Q1. What is maven and Maven hierarchy
Ans. 
Maven is a build automation tool used primarily for Java projects. It manages dependencies and builds the project.
• Maven uses a Project Object Model (POM) to manage dependencies and build process

• Maven has a hierarchical structure with parent and child projects

• Maven plugins can be used to extend its functionality

• Maven can be integrated with Continuous Integration tools like Jenkins

• Example: mvn clean install command is us
Answered by AI
Add your answer
Q2. What is framework and Use of testNG
Ans. 
TestNG is a testing framework for Java. It is used to perform unit, functional, integration, and end-to-end testing.
• TestNG is an open-source testing framework for Java

• It supports various types of testing such as unit, functional, integration, and end-to-end testing

• TestNG provides annotations to define test methods, test suites, and test cases

• It generates test reports and allows parallel execution of tests

• TestNG can be ...read more
Answered by AI
Add your answer
Q3. Page oriented model and program oriented model
Add your answer
Q4. CSS selector and Xpath
Add your answer
Q5. Locators and line of code to store any data in a textbox
Ans. 
To store data in a textbox, use locators and line of code.
• Identify the textbox element using locators such as ID, name, class, or XPath

• Use the sendKeys() method to enter data into the textbox

• Store the data in an array of strings for later use
Answered by AI
Add your answer

Q1. Java topics, mostly core java
Add your answer
Q2. Some pattern design and encapsulation inhabitance, polymorphism, abstraction etc
Add your answer
Q3. Also some critical and analytical thinking questions
Add your answer

Q1. Abstraction and Interfaces
Add your answer
Q2. Analytical and critical thinking questions
Add your answer

Basic aptitude questions

Basic coding questions