1. WIKI教程
2. Java.io包
3. void write(byte[] b)

void write(byte[] b)

描述 (Description)

java.io.FilterOutputStream.write(byte[] b)方法将b.length个字节写入此输出流。

声明 (Declaration)

以下是java.io.FilterOutputStream.write(byte[] b)方法的声明 -

public void write(byte[] b)

参数 (Parameters)

b - 要写入流的源缓冲区

返回值 (Return Value)

此方法不返回任何值。

异常 (Exception)

IOException - 如果发生I/O错误。

例子 (Example)

以下示例显示了java.io.FilterOutputStream.write（byte [] b）方法的用法。

package com.iowiki;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
public class FilterOutputStreamDemo {
   public static void main(String[] args) throws Exception {
      OutputStream os = null; 
      FilterOutputStream fos = null;
      FileInputStream fis = null;
      byte[] buffer = {65, 66, 67, 68, 69};
      int i = 0;
      char c;
      try {
         // create output streams
         os = new FileOutputStream("C://test.txt");
         fos = new FilterOutputStream(os);
         // writes buffer to the output stream
         fos.write(buffer);
         // forces byte contents to written out to the stream
         fos.flush();
         // create input streams
         fis = new FileInputStream("C://test.txt");
         while((i = fis.read())!=-1) {
            // converts integer to the character
            c = (char)i;
            // prints
            System.out.println("Character read: "+c);
         }
      } catch(IOException e) {
         // if any I/O error occurs
         System.out.print("Close() is invoked prior to write()");
      } finally {
         // releases any system resources associated with the stream
         if(os!=null)
            os.close();
         if(fos!=null)
            fos.close();
      }
   }
}

让我们编译并运行上面的程序，这将产生以下结果 -

Character read: A
Character read: B
Character read: C
Character read: D
Character read: E