Coding Interview Resources

Typical C++ interview questions sorted by experience Junior: - What are the key features of object-oriented programming in C++? - Explain the differences between public, private, and protected access specifiers in C++. - Distinguish between function overloading and overriding in C++. - Compare and contrast abstract classes and interfaces in C++. - Can an interface inherit from another interface in C++? - Define the static keyword in C++ and its significance. - Is it possible to override a static method in C++? - Explain the concepts of polymorphism and inheritance in C++. - Can constructors be inherited in C++? - Discuss pass-by-reference and pass-by-value for objects in C++. - Compare == and .equals for string comparison in C++. - Explain the purposes of the hashCode() and equals() functions. - What does the Serializable interface do? How is it related to Parcelable in Android? - Differentiate between Array and ArrayList in C++. When would you use each? - Explain the distinction between Integer and int in C++. - Define ThreadPool and discuss its advantages over using simple threads. - Differentiate between local, instance, and class variables in C++. Mid: - What is reflection in C++? - Define dependency injection and name a few libraries. Have you used any? - Explain strong, soft, and weak references in C++. - Interpret the meaning of the synchronized keyword. - Can memory leaks occur in C++? - Is it necessary to set references to null in C++? - Why is a String considered immutable? - Discuss transient and volatile modifiers in C++. - What is the purpose of the finalize() method? - How does the try{} finally{} block work in C++? - Explain the difference between object instantiation and initialization. - Under what conditions is a static block executed in C++? - Why are generics used in C++? - Mention some design patterns you are familiar with. Which do you typically use? - Name some types of testing methodologies in C++. Senior: - Explain how std::stoi (string to integer) works in C++. - What is the "double-check locking" problem, and how can it be solved in C++? - Differentiate between StringBuffer and StringBuilder in C++. - How is StringBuilder implemented to avoid the immutable string allocation problem? - Explain the purpose of the Class.forName method in C++. - Define Autoboxing and Unboxing in C++. - What's the difference between Enumeration and Iterator in C++? - Explain the difference between fail-fast and fail-safe in C++. - What is PermGen in C++? - Describe a Java priority queue. - How is performance influenced by using the same number in different types: Int, Double, and Float? - Explain the concept of the Java Heap. - What is a daemon thread? - Can a dead thread be restarted in C++? ✅ Best Telegram channels to get free coding & data science resources -> https://t.me/addlist/4q2PYC0pH_VjZDk5 ENJOY LEARNING 👍👍

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