10+ Dream11 Interview Questions and Answers

Java provides various classes for file handling, allowing reading and writing operations using streams.

• Use FileWriter for writing text files: FileWriter writer = new FileWriter('file.txt');

• Use BufferedWriter for efficient writing: BufferedWriter bufferedWriter = new BufferedWriter(writer);

• Always close the writer using bufferedWriter.close() to free resources.

• Handle exceptions using try-catch blocks to manage IOExceptions.

Creating a collection from a string involves splitting the string into elements and storing them in a data structure.

• Use the split() method to divide the string into an array. Example: 'a,b,c'.split(',') results in ['a', 'b', 'c'].

• Choose a collection type based on requirements: Array, List, Set, etc.

• For unique elements, consider using a Set. Example: new Set('aabb') results in ['a', 'b'].

• If order matters, use an Array or List. Example: ['apple', 'banana', 'cherry'] maintains ...read more

Creating persistent automation involves ensuring scripts run after system restarts using services or scheduled tasks.

• Use a service manager (e.g., systemd on Linux) to run automation scripts on startup.

• Create a scheduled task in Windows Task Scheduler to trigger automation scripts after reboot.

• Implement a watchdog mechanism to restart automation if it fails unexpectedly.

• Store automation state in a database or file to resume from the last checkpoint after a restart.

• Utilize cont...read more

Read command line arguments in Python to execute functions based on user input.

• Use the 'sys' module to access command line arguments: `import sys`.

• Access arguments via `sys.argv`, which is a list of command line inputs.

• Example: `sys.argv[0]` is the script name, `sys.argv[1]` is the first argument.

• Define functions and use conditional statements to execute based on input.

• Example: `if sys.argv[1] == 'test': run_test_function()`.

In Playwright, the alternative for @Test annotation is using the test function from the Playwright Test framework.

• Playwright uses the 'test' function to define test cases, similar to @Test in other frameworks.

• Example: 'test('should load the homepage', async () => { ... });'

• You can group tests using 'describe' blocks: 'describe('Homepage tests', () => { ... });'

• Playwright supports various assertions through the 'expect' function, e.g., 'expect(page).toHaveTitle('Home');'

Assertions in Playwright validate expected outcomes in automated tests, ensuring application behavior meets requirements.

• Use 'expect' from Playwright's test library to create assertions.

• Example: expect(page.title()).toBe('Expected Title');

• Assertions can check various conditions like visibility, text content, and element states.

• Example: expect(await page.isVisible('selector')).toBe(true);

• Assertions can be chained for more complex validations.

• Example: expect(element).toHaveText...read more

In Java, a top-level class cannot be declared private; only nested classes can be private.

• Top-level classes can be public, protected, or package-private, but not private.

• Private classes can only be nested within another class.

• Example of a private nested class: class Outer { private class Inner {} }

• Private classes are used to encapsulate functionality within a specific context.

CSS is a styling language for web pages, while SASS is a preprocessor that extends CSS with additional features.

• CSS is the standard styling language for web pages, while SASS is a preprocessor that compiles into CSS.

• CSS uses a syntax with selectors, properties, and values, while SASS introduces variables, nesting, mixins, and more.

• SASS allows for code reusability and modularity through features like mixins and partials.

• SASS supports nested selectors, making it easier to write...read more

Designing a website involves planning, creating a layout, choosing a color scheme, selecting fonts, and coding.

• Determine the purpose and target audience of the website

• Create a wireframe or mockup of the layout

• Choose a color scheme and fonts that align with the brand and purpose

• Write HTML, CSS, and JavaScript code to bring the design to life

• Test the website for functionality and user experience

• Optimize the website for search engines and mobile devices

SDLC stands for Software Development Life Cycle, which is a process used to design, develop, and test software.

• SDLC is a framework that outlines the steps involved in software development.

• It includes planning, analysis, design, implementation, testing, and maintenance.

• Each phase of SDLC has its own set of deliverables and objectives.

• SDLC helps ensure that software is developed efficiently, on time, and within budget.

• Examples of SDLC models include Waterfall, Agile, and DevOps...read more

To design a website, start with defining the purpose, target audience, and content. Then create a wireframe, choose a design, and develop the site.

• Define the purpose, target audience, and content

• Create a wireframe to plan the layout and structure

• Choose a design that aligns with the purpose and audience

• Develop the site using HTML, CSS, and JavaScript

• Test the site for usability and functionality

• Launch the site and promote it through SEO and social media

The code will output the sum of all elements in the array.

• The code uses a for loop to iterate through the array and add each element to a sum variable.

• The sum variable is then printed at the end to display the total sum of all elements.