Question

Java 中的进程如何判断已经终止？

Process process = Runtime.getRuntime().exec ("exe/Debug/test.exe");
如何判断process 已经终止呢？满意加分~
返回是int啊，我想监控程序终止怎么办呢？只要判断一下就行了！

Answer 1

Process类提供的函数很少，找了一下，能跟判断终止有关的函数只有一个：
exitValue（）
public abstract int exitValue()Returns the exit value for the subprocess.

Returns:
the exit value of the subprocess represented by this Process object. by convention, the value 0 indicates normal termination.
Throws:
IllegalThreadStateException - if the subprocess represented by this Process object has not yet terminated.

通过这个函数可得到Process的终止方式。如果未终止，抛出异常。
捕获这个异常就行了。