Java Virtual Machine (JVM), Difference JDK, JRE & JVM – Core Java Java May 7, 2026 What is JDK? What is JRE? What is JVM? Why use JDK? Why use JRE? Why JVM? Features of JDK Features of JRE Features of JVM How JDK Functions? How JRE Functions? Class loaders: Byte code verifier Interpreter Run-time: Hardware How JVM Functions? 1) Class Loader 2) Method Area 3) Heap 4) JVM language Stacks 5) PC Registers 6) Native Method Stacks 7) Execution Engine 8) Native Method interface 9) Native Method Libraries Difference between JDK, JRE and JVM Get the next Java tutorials in your inbox. We publish new Java tutorials most days. One email a week with the latest — no spam, unsubscribe anytime. Subscribe ← Previous Java Runtime Environment (JRE) Next → Java IDE