Glenwood Systems Interview Questions and Answers

A pointer is a variable that stores the memory address of another variable.

• Pointers are used to indirectly access and manipulate data in computer memory.

• They are commonly used in programming languages like C and C++.

• Pointers can be used to pass variables by reference, allowing changes to be made to the original variable.

• Example: int* ptr; // declares a pointer to an integer variable

Stacks and Queues are data structures used to store and retrieve data in a specific order.

• Stacks follow the Last-In-First-Out (LIFO) principle, where the last item added is the first one to be removed.

• Queues follow the First-In-First-Out (FIFO) principle, where the first item added is the first one to be removed.

• Stacks are used in undo-redo functionality, while Queues are used in scheduling tasks.

• Both can be implemente

Type casting is the process of converting one data type to another. Types of type casting include implicit and explicit casting.

• Implicit casting is automatic and occurs when a value of one data type is assigned to a variable of another data type that can hold a wider range of values.

• Explicit casting is done manually and involves converting a value of one data type to another data type that can hold a narrower range of ...read more