Academian Inc Interview Questions, Process, and Tips for Freshers

To build a resume builder in react js

Q1. Redux in react.js ?
Ans. 
Redux is a state management library commonly used with React.js to manage application state in a predictable way.
• Redux helps to manage the state of the application in a single immutable state tree.

• Actions are dispatched to update the state, and reducers specify how the state changes in response to actions.

• Redux can be used with React.js to create more scalable and maintainable applications.

• Example: const store = create
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Q2. What is overriding and overloading?
Ans. 
Overriding is when a subclass provides a specific implementation of a method that is already provided by its parent class. Overloading is when multiple methods have the same name but different parameters.
• Overriding occurs in inheritance when a subclass provides a specific implementation of a method that is already provided by its parent class.

• Overloading is when multiple methods have the same name but different paramet...read more
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Q1. Compile Time and Run Time Exceptions in Java
Ans. 
Compile time errors occur during compilation while run time errors occur during execution of the program in Java.
• Compile time errors are syntax errors detected by the compiler, such as missing semicolons or typos.

• Run time errors occur during program execution, such as null pointer exceptions or array index out of bounds.

• Compile time errors prevent the program from being compiled successfully, while run time errors can ...read more
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Q2. Find the maximum element in the array.
Ans. 
Find the maximum element in the array of strings.
• Iterate through the array and compare each element to find the maximum.

• Use a built-in function like Math.max() to find the maximum element.

• Consider converting string elements to numbers if applicable before comparison.
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Q3. In a given string find the elements have occurrences more than once
Ans. 
Find elements in a string that occur more than once
• Iterate through the string and count occurrences of each element

• Store elements with occurrences greater than one in a separate list
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Q4. Let vs const in JavaScript
Ans. 
let is mutable and can be reassigned, const is immutable and cannot be reassigned in JavaScript.
• let is block-scoped, const is also block-scoped.

• let can be reassigned, const cannot be reassigned.

• Use const for values that should not change, use let for values that may change.
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Q5. Give an Example of useState
Ans. 
useState is a hook in React that allows functional components to have state.
• useState is used to declare a state variable in a functional component.

• It returns an array with the current state value and a function to update that value.

• Example: const [count, setCount] = useState(0);
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Q1. Find Palindrome for a given number.
Ans. 
To find palindrome for a given number, reverse the number and compare with the original number.
• Convert the number to a string to easily reverse it

• Reverse the string and compare with the original string to check for palindrome

• If the reversed string is equal to the original string, then the number is a palindrome
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Q2. Redux in React.js
Ans. 
Redux is a state management library for React.js applications.
• Redux helps manage the state of a React application in a predictable way

• It stores the entire state of the application in a single immutable object

• Actions are dispatched to update the state using reducers

• Components can subscribe to the Redux store to access the state
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Q3. Some use cases of Junit in Java
Ans. 
Junit is a popular testing framework in Java used for unit testing.
• Testing individual units of code

• Automating test cases

• Ensuring code quality and reliability

• Integration testing with other frameworks like Mockito
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Q4. Output question based on Slicing in JavaScript
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Q5. Overall Experience on the project you have worked on in your previous company
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