Day 34: Inspecting JVM runtime memory and processor count with Runtime

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import org.apache.commons.io.FileUtils;

class Day34 {
    public static void main(String[] args) {
        int availableCoreCountToJVM = Runtime.getRuntime().availableProcessors();
        long maxMemoryUsableToJVM = Runtime.getRuntime().maxMemory();
        long availableFreeMemoryInJVM = Runtime.getRuntime().freeMemory();
        long JVMTotalMemory = Runtime.getRuntime().totalMemory();

        System.out.println("Amount of max memory for JVM : "
            + FileUtils.byteCountToDisplaySize(maxMemoryUsableToJVM));
        System.out.println("Amount of total memory in JVM : "
            + FileUtils.byteCountToDisplaySize(JVMTotalMemory));
        System.out.println("Amount of free memory in JVM : "
            + FileUtils.byteCountToDisplaySize(availableFreeMemoryInJVM));
        System.out.println("Available CPU core count in JVM: " + availableCoreCountToJVM);
    }
}