在Java 9中，Process API有哪些改进？

Process API 提供了更多的信息，例如：

• 进程的本机进程 ID
• 累积 CPU 时间
• 父进程
• 销毁进程的方法
• 进程的后代等

示例

public class ProcessTest {
   public static void main(String args[]) {
      <strong>ProcessHandle </strong>currentProcess = ProcessHandle.current();
      System.out.println("PID: " + currentProcess.<strong>pid()</strong>);
      <strong>ProcessHandle.Info</strong> currentProcessInfo = currentProcess.<strong>info()</strong>;
      System.out.println("totalCpuDuration: " + currentProcessInfo.<strong>totalCpuDuration()</strong>);
      System.out.println("user: " + currentProcessInfo.<strong>user()</strong>);
   }
}

输出

<strong>PID: 6004
totalCpuDuration: Optional[PT0.421875S]
user: Optional[Tutorialspoint\User]</strong>

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