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§1.13 Class Process
public abstract class java.lang.Process
extends java.lang.Object (I-§1.12)
{
// Constructors
public Process(); §1.13.1
// Methods
public abstract void destroy(); §1.13.2
public abstract int exitValue(); §1.13.3
public abstract InputStream getErrorStream(); §1.13.4
public abstract InputStream getInputStream(); §1.13.5
public abstract OutputStream getOutputStream(); §1.13.6
public abstract int waitFor(); §1.13.7
}
The exec methods (I-§1.14.1-§1.14.4) return an instance of a subclass of Process that can be
used to control the process and obtain information about it.
The subprocess is not killed when there are no more references to the Process object, but
rather the subprocess continues executing asynchronously.
Process
public Process()
- The default constructor.
destroy
public abstract void destroy()
- Kills the subprocess.
exitValue
public abstract int exitValue()
- Returns:
- the exit value of the subprocess.
- Throws
- IllegalThreadStateException (I-§1.34)
- If the subprocess has not yet terminated.
getErrorStream
public abstract InputStream getErrorStream()
- Gets the error stream of the subprocess.
- Returns:
- the input stream connected to the error stream of the subprocess. This
stream is usually unbuffered.
getInputStream
public abstract InputStream getInputStream()
- Gets the input stream of the subprocess.
- Returns:
- the input stream connected to the normal output of the subprocess.
This stream is usually buffered.
getOutputStream
public abstract OutputStream getOutputStream()
- Gets the output stream of the subprocess.
- Returns:
- the output stream connected to the normal input of the subprocess.
This stream is usually buffered.
waitFor
public abstract int waitFor()
throws InterruptedException
- Waits for the subprocess to complete. This method returns immediately if
the subprocess has already terminated.
- Returns:
- the exit value of the process.
- Throws
- InterruptedException (I-§1.37)
- If the waitFor was interrupted.
-
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Java API Document (HTML generated by dkramer on April 22, 1996)
Copyright © 1996 Sun Microsystems, Inc.
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Please send any comments or corrections to doug.kramer@sun.com