Example Concept: Rust's ownership model revolves around three core principles: ownership, borrowing, and lifetimes. Ownership ensures that each value in Rust has a single owner, which is responsible for freeing the memory when it goes out of scope. Borrowing allows references to data without transferring ownership, ensuring safe concurrent access through mutable and immutable references. Lifetimes track how long references are valid, preventing dangling references. In contrast, Java's garbage collector automatically reclaims memory by identifying and freeing unused objects during program execution, which can introduce runtime overhead.