获取容器的CPU核数

GetCPUCore.java

public class GetCPUCore {
    public static void main(String[] args) {
        int cpu = Runtime.getRuntime().availableProcessors() * 2;
        System.out.println("Available Processors * 2 is : " + cpu);
    }
}

javac GetCPUCore.java

java -cp . GetCPUCore