Java BufferedWriter write()方法

java.io.BufferedWriter.write(char[] cbuf, int off, int len) 用于写入字符数组的一部分。

1 语法

public void write(char[] cbuf, int off, int len)

2 参数

cbuf：要写入的字符数组

off：偏移关闭以开始读取字符缓冲区

len：要写入流的字符数

3 返回值

无

4 示例 

package com.yiidian;

/**
 * 一点教程网： http://www.yiidian.com
 */
/**
 * java.io.BufferedWriter.write(char[] cbuf, int off, int len)方法的例子
 */
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.StringWriter;

public class Demo {
    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();
        }
    }
}

输出结果为：

CDEFG