流程类的getOutputStream()方法 (Process Class getOutputStream() method)

• getOutputStream() method is available in java.lang package.

  getOutputStream()方法在java.lang包中可用。

• getOutputStream() method is used to get the output stream of the process and sub-process.

  getOutputStream()方法用于获取流程和子流程的输出流。

• getOutputStream() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  getOutputStream()方法是一个非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• getOutputStream() method does not throw an exception at the time of returning output stream.

  返回输出流时， getOutputStream()方法不会引发异常。

Syntax:

句法：

    public abstract OutputStream getOutputStream();

Parameter(s):

参数：

• It does not accept any parameter.

  它不接受任何参数。

Return value:

返回值：

The return type of this method is OutputStream, it returns output stream associated to the standard input of the process.

此方法的返回类型为OutputStream ，它返回与流程的标准输入关联的输出流。

Example:

例：

// Java program to demonstrate the example 
// of OutputStream getOutputStream() method of Process 
import java.io.*;
import java.util.*;
public class GetOutputStream {
public static void main(String[] args) throws Exception {
// Instantiating Process object
System.out.println("Process Instantiated");
Process pr = Runtime.getRuntime().exec("notepad.exe");
// By using getOutputStream() method is to get the 
// output stream of pr object
OutputStream os = pr.getOutputStream();
// By using close() method is to close the output stream
System.out.println("Output Stream Closed :");
os.close();
}
}

Output

输出量

Process Instantiated
Output Stream Closed :

翻译自: https://www.includehelp.com/java/process-getoutputstream-method-with-example.aspx