Shell Recharge Solutions Software Developer Interview Questions and Answers

Q1. Detailed interview with technicalities and about your profile
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Q2. Technologies Worked with.
Ans. 
Experienced with Java, Python, SQL, HTML, CSS, JavaScript, and Git.
• Java

• Python

• SQL

• HTML

• CSS

• JavaScript

• Git
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Q3. Coding with your expertise in your area and others. Will update other questions soon
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Q4. Salary discussion
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Q5. Joining within a month
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Q1. What is the use of static keyword
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Static keyword is used in programming to declare variables, methods, or classes that belong to the class itself rather than instances of the class.
• Static variables are shared among all instances of a class

• Static methods can be called without creating an instance of the class

• Static classes cannot be instantiated and are used for grouping related methods or constants

• Static keyword is also used in C to declare functions t
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Q1. Basic technical question oops concept
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Q1. Describe Life cycle in react
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React has three main phases in its lifecycle: mounting, updating, and unmounting.
• Mounting: when a component is created and inserted into the DOM

• Updating: when a component is updated due to changes in props or state

• Unmounting: when a component is removed from the DOM

• Lifecycle methods can be used to perform actions at each phase, such as componentDidMount() or componentWillUnmount()

• React also has error handling methods,
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Q2. Explain strict mode in javascript and it's use
Ans. 
Strict mode is a way to write secure and optimized JavaScript code.
• Enables catching of silent errors

• Disallows duplicate property names or parameters

• Prevents use of undeclared variables

• Makes `eval()` safer to use

• Throws errors on invalid usage of `this` keyword
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CURD operations along with implementation of a mock UI

Q1. Tell about Oops concepts
Ans. 
OOPs concepts are fundamental principles in object-oriented programming, including inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex imple...read more
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Q1. Will ask coding related
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Q1. What is Expected salary
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