This class
describes a process that is running externally to the Java
interpreter. Note that a Process is very different
from a Thread; the Process
class is abstract and cannot be instantiated. Call one of the
Runtime.exec( ) methods to start a process and
return a corresponding Process object.waitFor( ) blocks until the
process exits. exitValue( ) returns the exit code
of the process. destroy( ) kills the process.
getErrorStream(
)
returns
an
InputStream from which you can read any bytes the
process sends to its standard error stream. getInputStream(
) returns an InputStream from which you
can read any bytes the process sends to its standard output stream.
getOutputStream( ) returns an
OutputStream you can use to send bytes to the
standard input stream of the process.public abstract class Process {
// Public Constructors
public Process ( );
// Public Instance Methods
public abstract void destroy ( );
public abstract int exitValue ( );
public abstract java.io.InputStream getErrorStream ( );
public abstract java.io.InputStream getInputStream ( );
public abstract java.io.OutputStream getOutputStream ( );
public abstract int waitFor ( ) throws InterruptedException;
}
Returned By
ProcessBuilder.start( ), Runtime.exec(
) |
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