Junior — Middle
Kas saaksite selgitada, mis on JVM-i kutsesilmus ja kuidas see töötab?
sobes.tech AI
Vastus AI-lt
The call stack in JVM is a data structure that stores information about methods currently executing in a thread. Each method call places a new frame on the stack, containing local variables, parameters, and the return address.
How it works:
- When a method is called, the JVM creates a new frame and places it on top of the stack.
- During the execution of the method, data from this frame is used.
- When the method finishes, the frame is removed from the stack, and control returns to the previous method.
This allows the JVM to track the sequence of calls, manage local data, and ensure correct return from methods.
Example: if method A calls method B, first there will be a frame for A on the stack, then, on top of it, a frame for B. After B completes, its frame is removed, and execution continues in A.