Java Java.io.BufferedWriter.write() 方法
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描述
java.io.BufferedWriter.write(char[] cbuf, int off, int len)方法将一段字符缓冲区写入编写器。偏移量,从该偏移量开始读取字符,而len是字符缓冲区中该部分的长度。 -
声明
以下是java.io.BufferedWriter.write(char[] cbuf, int off, int len)方法的声明-public void write(char[] cbuf, int off, int len)
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参数
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cbuf要写入的字符数组
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off -偏移关闭以开始读取字符缓冲区
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len要写入流的字符数
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返回值
此方法不返回任何值。 -
异常
IOException如果发生I / O错误。 -
例子
以下示例显示java.io.BufferedWriter.write(char [] cbuf,int off,int len)方法的用法。package com.jc2182; import java.io.BufferedWriter; import java.io.IOException; import java.io.StringWriter; public class BufferedWriterDemo { public static void main(String[] args) throws IOException { StringWriter sw = null; BufferedWriter bw = null; char[] cbuf = "ABCDEFGHIJKLMN".toCharArray(); try { // create string writer sw = new StringWriter(); //create buffered writer bw = new BufferedWriter(sw); // write from specified character buffer to stream bw.write(cbuf, 2, 5); // forces out the characters to string writer bw.flush(); // string buffer is created StringBuffer sb = sw.getBuffer(); //prints the string System.out.println(sb); } catch(IOException e) { // if I/O error occurs e.printStackTrace(); } finally { // releases any system resources associated with the stream if(sw!=null) sw.close(); if(bw!=null) bw.close(); } } }
让我们编译并运行以上程序,这将产生以下结果-CDEFG