Manipal Technologies Interview Questions and Answers

Call, apply, and bind are methods used to manipulate the context of a function. Currying is a technique to transform a function with multiple arguments into a sequence of functions with single arguments. Closure is a feature that allows a function to access variables from its outer scope. Promises are objects used for asynchronous programming. Hoisting is a behavior where variable and function declarations are moved to the top of their containing scope. Event loop is a mechan...read more

Modularizing code in ReactJs involves breaking down the application into smaller components for better organization and reusability.

• Create separate components for different parts of the UI

• Use props to pass data and functions between components

• Use state to manage component-specific data

• Use React Router to handle routing and navigation

• Use CSS modules or styled-components for component-specific styling

• Use Redux or Context API for state management across components

• Perform unit te...read more

The @RestController annotation is used in Spring to indicate that a class is a RESTful controller.

• It is a specialized version of the @Controller annotation

• It is used to handle HTTP requests and return JSON/XML responses

• It eliminates the need for @ResponseBody annotation

• Example: @RestController @RequestMapping("/api") public class ApiController { }

String is immutable to ensure thread safety, security, and caching benefits.

• Immutable strings are thread-safe, as multiple threads can access the same string without any race conditions.

• Immutable strings are secure, as they cannot be modified by malicious code.

• Immutable strings can be cached, as their values never change, resulting in better performance.

• Examples of immutable strings in Java include String, Integer, and Boolean.