Java interview questions for 5 years experience
Contents [ hide ] What is difference between Heap and Stack Memory in Java, and shed light on their utilization? In Java, memory management plays a crucial role in determining how objects are stored and accessed during program execution . Heap and Stack Memory are two distinct regions where different types of data are managed. Understanding their differences is essential for efficient memory utilisation and managing object lifecycles. Stack Memory Stack Memory is a region used for storing method calls, local variables, and references to objects . It operates in a Last-In-First-Out (LIFO) manner , resembling a stack of items. Each method call creates a new frame in the stack, containing variables specific to that method. Stack Memory is relatively fast for allocation and deallocation because it follows a strict order. However, it has limited space and is typically used for small, short-lived data. Primitive data types and references to objects are often stored here. Ex