void write(char cbuf, int off, int len) void newLine void write(int c) 描述 java.io.BufferedWriter.write(char[] cbuf, int off, int len) 方法写入字符缓冲器的一部分,从而写入器。从中开始读取字符的偏移量,len是字符缓冲区中节的长度。 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) 参数 cbuf - 要写入的字符数组 off - Offset off开始读取字符缓冲区 len - 要写入流的字符数 返回值 此方法不返回任何值。 异常 IOException - 如果发生I / O错误。 实例 以下示例显示了java.io.BufferedWriter.write(char [] cbuf,int off,int len)方法的用法。 package com.tutorialspoint; 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(); } } } 让我们编译并运行上面的程序,这将产生以下结果 CDEFG void newLine void write(int c)