Joannou & Paraskevaides Java Developer Interview Questions and Answers

Q1. Java opps concept
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Q2. App cycle status
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Round duration - 60 minutes
Round difficulty - Easy

This was a technical interview round with questions on C, C++ and Windows.

Q1. What is the difference between C and C++?
Ans. 
C is a procedural programming language while C++ is an object-oriented programming language with features like classes and inheritance.
• C is a procedural programming language while C++ is a multi-paradigm language with support for object-oriented programming.

• C does not support classes and objects, while C++ does.

• C does not have features like inheritance and polymorphism which are present in C++.

• C is a subset of C++.

• C++ ...read more
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Q2. What are access specifiers in C++?
Ans. 
Access specifiers in C++ are keywords used to define the accessibility of class members.
• Access specifiers include public, private, and protected.

• Public members are accessible from outside the class.

• Private members are only accessible within the class.

• Protected members are accessible within the class and its subclasses.

• Example: class MyClass { private: int x; public: void setX(int val) { x = val; } };

• Example: MyClass ob
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Q3. How do you open Device Manager in Windows?
Ans. 
Device Manager can be opened in Windows by using the Run dialog box or searching in the Start menu.
• Press Windows key + R to open the Run dialog box, then type 'devmgmt.msc' and press Enter

• Search for 'Device Manager' in the Start menu and click on the result to open it
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Q4. How do you open the command prompt in Windows?
Ans. 
To open the command prompt in Windows, you can use the search bar or keyboard shortcuts.
• Use the search bar and type 'cmd' or 'command prompt'

• Press Windows key + R, then type 'cmd' and press Enter
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Round duration - 30 minutes
Round difficulty - Easy

HR interview can be a bit tricky. They will try to see your creativity in your answers so just be yourself and be confident.

Noramal basic algorithm and ,fetch api

Q1. React alll basic question,redux,class component,functional component
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Q1. Java concept : oops collections , multithreading
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Q2. Spring boot, dependency injection , rest apis
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1 hour duration, related financial crisis

Test was hard, needs to prepared very well

30 mins 20 questions

Be strong at basics mostly questions come on same

Basic coding related to oops and some basic programms