Impelsys PHP Developer Interview Questions and Answers

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Aptitude,reasoning,verbal,C language,Java,C++

Q1. What is interface in JAVA
Ans. 
An interface in Java is a reference type that defines a contract for classes to implement methods without providing their implementation.
• Interfaces can contain method signatures and constants but no method bodies.

• A class implements an interface using the 'implements' keyword. Example: 'class MyClass implements MyInterface'.

• Multiple interfaces can be implemented by a single class, allowing for multiple inheritance of ty...read more
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Q2. Explain OOPS in JAVA
Ans. 
OOP in Java is a programming paradigm based on objects, enabling code reusability, encapsulation, inheritance, and polymorphism.
• Encapsulation: Bundling data and methods that operate on the data within one unit (class). Example: private variables with public getters/setters.

• Inheritance: Mechanism where one class inherits properties and behavior from another. Example: class Dog extends Animal.

• Polymorphism: Ability to pre...read more
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Good and easy learn dsa and algo

Learn dsa and algo binary tree and lists

Q1. Learn basic subjects and topics like OS and Cloud
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Q1. Short round based on aptitude and attidtude
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It was basic test. online.

2 questions on arrays. online.

The general topic. Be point to point

Q1. SQL and Python questions. online. screen sharing
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Q1. What is use of ng-content ?.
Ans. 
ng-content is used in Angular to project content into a component's template.
• ng-content is used to pass content into a component from the outside.

• It allows for dynamic content insertion within a component's template.

• ng-content is often used in combination with ng-template and ng-container.

• It is commonly used for creating reusable components with varying content.
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