void write(int c) void write(char cbuf, int off, int len) void write(String s, int off, int len) 描述 所述java.io.BufferedWriter.write(INT C)方法写入单个字符。 声明 以下是java.io.BufferedWriter.write(int c)方法的声明: public void write(int c) 参数 c - 指定要写入的字符的整数 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(int c)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; try{ // create string writer sw = new StringWriter(); //create buffered writer bw = new BufferedWriter(sw); // integer range represents alphabets in uppercase for(int i = 65; i<=90; i++) { bw.write(i); } // 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: ABCDEFGHIJKLMNOPQRSTUVWXYZ void write(char cbuf, int off, int len) void write(String s, int off, int len)