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Write a Java code to reverse a string
Use StringBuilder to reverse the string
Convert the string to StringBuilder, call reverse() method, and convert back to string
Handle null or empty string cases
I applied via Naukri.com and was interviewed in Jan 2024. There were 2 interview rounds.
Encapsulation is the process of hiding internal details of an object and providing access only through defined methods.
Encapsulation helps in achieving data abstraction and data hiding.
It allows for better control over the data and prevents direct access to it.
Loading process refers to the process of loading a program or data into memory for execution.
Reverse string code example: function reverseString(str) { return st
Encapsulation is the process of hiding internal implementation details and providing a public interface. Loading process refers to the steps involved in loading a program or data into memory.
Encapsulation helps in achieving data abstraction and information hiding.
It allows for better control over data and prevents unauthorized access.
Loading process involves steps like parsing, linking, and loading the program or data ...
Regression testing is retesting of previously tested functionality, while sanity testing is a quick check to ensure basic functionality is working.
Regression testing is performed to ensure that changes or fixes in the software do not introduce new defects or impact existing functionality.
It involves retesting of the entire application or a specific set of test cases.
Regression testing is usually performed after major c...
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I applied via Referral and was interviewed before Mar 2021. There were 2 interview rounds.
I applied via Campus Placement and was interviewed before Nov 2020. There was 1 interview round.
I applied via Walk-in and was interviewed before Jun 2021. There were 3 interview rounds.
Current Technologies
Duration 1 hr, Coding,GK and English
I applied via Referral and was interviewed in Nov 2020. There was 1 interview round.
I applied via Naukri.com and was interviewed before Oct 2020. There was 1 interview round.
Types of waits in Selenium include implicit, explicit, and fluent waits.
Implicit waits wait for a certain amount of time before throwing an exception if an element is not found.
Explicit waits wait for a certain condition to be met before proceeding with the next step.
Fluent waits wait for a certain condition to be met within a specified time frame.
Examples of conditions include element visibility, element clickability,...
Dynamic elements can be searched using unique attributes like ID, class, name, or XPath.
Use ID attribute if it's unique and static
Use class attribute if it's unique and dynamic
Use name attribute if it's unique and static
Use XPath if other attributes are not unique or not available
Jenkins is an open-source automation server that helps to automate parts of the software development process.
Jenkins is used for continuous integration and continuous delivery
It can be used to build, test, and deploy software
Jenkins has a large number of plugins available to extend its functionality
Examples of plugins include Git, Maven, and JUnit
Jenkins can be configured to run on different operating systems and envir
To fetch data from xls, use a library like Apache POI or OpenPyXL.
Use a library like Apache POI or OpenPyXL to read data from xls files
Identify the sheet and cell range to read data from
Iterate through the rows and columns to extract the data
Handle any formatting or data type conversions as needed
2 coding ques in 1 hr
The 'this' keyword in Java refers to the current instance of the class.
Used to refer to instance variables or methods of the current object
Can be used to differentiate between instance variables and local variables with the same name
Can be passed as an argument to other methods
final is a keyword used in Java to declare constants, while finally is a block of code used in exception handling to ensure a piece of code is always executed.
final is used to declare constants in Java, its value cannot be changed once assigned
finally is a block of code used in exception handling to ensure a piece of code is always executed, regardless of whether an exception is thrown or not
Example: final int MAX_VALU...
Basic principles of OOP include encapsulation, inheritance, and polymorphism.
Encapsulation: Bundling data and methods that operate on the data into a single unit (class).
Inheritance: Ability of a class to inherit properties and behavior from another class.
Polymorphism: Ability to present the same interface for different data types.
Example: A 'Car' class may have properties like 'color' and 'model', and methods like 'st
I applied via Referral and was interviewed in Dec 2021. There was 1 interview round.
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