Calsoft Senior Project Leader Interview Questions and Answers

Q1. Why functional interface when we have interface
Ans. 
Functional interfaces provide a single abstract method for functional programming in Java.
• Functional interfaces allow for lambda expressions and method references to be used as instances of the interface.

• Interfaces with multiple abstract methods cannot be used for lambda expressions.

• Example: java.util.function.Function is a functional interface with a single abstract method apply().
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Q2. Java 8 explain all features in short
Ans. 
Java 8 introduced new features like lambda expressions, streams, functional interfaces, and default methods.
• Lambda expressions: Allows writing concise code by enabling functional programming.

• Streams: Provides a way to work with sequences of elements efficiently.

• Functional interfaces: Interfaces with a single abstract method, used for lambda expressions.

• Default methods: Allows adding new methods to interfaces without br
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Q3. If one functional interface can extend another interface
Ans. 
Yes, one functional interface can extend another interface in Java.
• Functional interfaces can extend other functional interfaces in Java.

• The child interface can have only one abstract method, but can inherit default methods from the parent interface.

• Example: interface Parent { void method1(); } interface Child extends Parent { void method2(); }
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Angular coding task of 30 mins

Q1. Javascript questions
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Q2. Angular/React questions
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It was pretty easy. Various theoretical questions on technical knowledge and 3 coding questions. Since I was applying for a .net profile, all questions were related to that only.

Q1. Coding question on inheritance.
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Q2. Coding question on Abstract classes and their application.
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Q3. Discussion on the company, their culture.
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Q4. Coding question on graph.
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Q1. Asked me my expected salary even though it was already decided when they reached out to me.
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Q2. Negotiations on the salary.
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Q1. Past Experience
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Q1. Javascript basics, class and functional components, basic es6
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Q1. Promises, context api, redux and rest API
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Q1. Core java, spring boot, sql, java8
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Q2. Basic concept of java
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Q1. What is your Salary expectation
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Hello tell me about yourself