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The JRE creates the JVM and ensures dependencies are available to your programs. The JDK allows you to create Java programs that can be executed and run by the JVM and JRE.
Java profiler tools fall into two camps: Java sampling and JVM instrumentation. In this article we compare the differences between the two approaches.
Java is not the language it used to be, and that is mostly a good thing. Here are eleven ways Java is evolving to meet the challenges of the future.