Objects in Java are created on the heap, usually with new, and they live as long as they are needed. You never free memory yourself. Instead, the garbage collector (GC), part of the Java Virtual Machine (JVM), finds objects that the program can no longer reach and reclaims their memory. Variables, by contrast, hold either primitive values or references to objects; local variables live on the stack while their method runs.
Keep reading for free
Create a free StudyToCert account to read the rest of this lesson: 6 more sections, 4 key terms, a real-world example, an exam tip and self-check questions. Every lesson, lab and practice test is free with an account.