获得处理器的数量

public class Main {
    
    /**
     * Displays the number of processors available in the Java Virtual Machine
     */
    public void displayAvailableProcessors() {
        
        Runtime runtime = Runtime.getRuntime();
        
        int nrOfProcessors = runtime.availableProcessors();
        
        System.out.println("Number of processors available to the Java Virtual Machine: " + nrOfProcessors);
        
    }
    
    /**
     * Starts the program
     *
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Main().displayAvailableProcessors();
    }
}

代码来自 CSDN