It's likely that within a few years, 32-bit Java will become an exotic legacy footnote. Java 64 isn't a version number—it's a capability. Moving to 64-bit opens the door to massive heaps, better throughput for data-intensive workloads, and modern hardware optimization. But success requires understanding compressed pointers, choosing the right garbage collector, and accounting for larger memory overhead.
java -version Look for 64-Bit in the output: java 64
Example for a 64 GB heap with low-latency requirements: It's likely that within a few years, 32-bit
java version "17" 2021-09-14 LTS Java(TM) SE Runtime Environment (build 17+35) Java HotSpot(TM) 64-Bit Server VM (build 17+35, mixed mode, sharing) Alternatively, programmatically: better throughput for data-intensive workloads