Java.io.BufferedWriter.write()方法實例
java.io.BufferedWriter.write(int c) 方法寫入單個字符。
聲明
以下是java.io.BufferedWriter.write(int c)方法的聲明:
public void write(int c)
參數
-
c -- 整數,指定用來寫一個字符
返回值
此方法不返回任何值。
異常
-
IOException -- -- 如果發生I/O錯誤.
例子
下麵的示例演示java.io.BufferedWriter.write(int c) 方法的用法。
package com.yiibai; 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(); } } }
讓我們來編譯和運行上麵的程序,這將產生以下結果:
ABCDEFGHIJKLMNOPQRSTUVWXYZ