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Basic OOP questions for python programming language
Abstraction is the concept of hiding complex implementation details and showing only the necessary information to the user.
Abstraction allows users to focus on what an object does instead of how it does it
It helps in reducing complexity and improving efficiency in software development
Example: In object-oriented programming, abstract classes and interfaces are used to achieve abstraction
SQL databases are relational databases with structured data, while NoSQL databases are non-relational databases with flexible, unstructured data.
SQL databases use structured query language for defining and manipulating data, while NoSQL databases use different query languages or APIs.
SQL databases are table-based, with a predefined schema, while NoSQL databases are document, key-value, wide-column, or graph-based.
SQL d...
Reverse a linked list by changing the direction of pointers
Start with three pointers: current, prev, and next
Iterate through the linked list, updating pointers to reverse the direction
Update the head of the linked list to the last node after reversing
Binary search algorithm efficiently finds the target value in a sorted array.
Start by defining the low and high indices of the array.
Calculate the mid index and compare the target value with the value at mid.
If target is less than mid value, update high to mid-1; if greater, update low to mid+1.
Repeat until target is found or low is greater than high.
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To sort an array of strings, use the built-in sort() method.
Use the sort() method with a callback function to specify the sorting order.
For ascending order, use the function (a, b) => a.localeCompare(b).
For descending order, use the function (a, b) => b.localeCompare(a).
Test cases can be written in Jira using the 'Test' issue type and the 'Test Steps' field.
Create a new issue in Jira with the 'Test' issue type
Fill in the 'Summary' and 'Description' fields with relevant information
Add test steps in the 'Test Steps' field, including expected results
Assign the issue to the appropriate team member for execution
Track test execution and results in Jira
Code can be pushed to Jira using Jira REST API or by integrating with a CI/CD tool.
Jira REST API can be used to create an issue and attach code to it
Integrating with a CI/CD tool like Jenkins can automate the process of pushing code to Jira
Jira plugins like Git Integration for Jira can also be used to push code to Jira
I am a Software Test Engineer with experience in testing various software applications.
I have a strong understanding of software testing methodologies and techniques.
I am proficient in using testing tools and frameworks such as Selenium and JUnit.
I have experience in creating test plans, test cases, and executing test scripts.
I am skilled in identifying and reporting software defects and working closely with developers...
posted on 22 Jun 2024
I applied via Naukri.com and was interviewed in May 2024. There was 1 interview round.
The difference between == and .equals() in Java
The == operator checks if two objects reference the same memory location
The .equals() method checks if two objects have the same content
For primitive data types, == compares values while .equals() is not applicable
For objects, == compares memory addresses while .equals() compares content
Example: String str1 = new String("hello"); String str2 = new String("hello"); str1 == ...
posted on 16 Feb 2022
I applied via Approached by Company and was interviewed before Feb 2021. There were 2 interview rounds.
posted on 1 Feb 2023
I applied via Recruitment Consulltant and was interviewed in Jan 2023. There were 3 interview rounds.
I was interviewed in Jul 2024.
Create an API using Notepad to check if a string is a palindrome or not.
I applied via Other and was interviewed in May 2021. There was 1 interview round.
Sorting array of strings without using inbuilt function.
Implement bubble sort algorithm
Compare adjacent elements and swap if necessary
Repeat until no swaps are needed
I applied via LinkedIn and was interviewed in Jun 2022. There were 2 interview rounds.
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