标签:style blog io color os sp java on 文件
1 编码:(程序)字符串 –>字节数组(文本文件) OutputStreamWriter
解码: (文本文件)字节数组 –>字符串(程序)InputStreamReader
2 标准的输出流: System.out
标准的输入流: System.in
package lianxi1; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.UnsupportedEncodingException; import org.junit.Test; public class TestConvertStream { @Test public void test1(){ BufferedReader br = null; BufferedWriter bw = null; try { FileInputStream fis = new FileInputStream("Goodbye"); InputStreamReader isr = new InputStreamReader(fis,"ISO-8859-1"); br = new BufferedReader(isr); // 参数是Reader接口,InputStreamReader是子类,接口的多态 FileOutputStream fos = new FileOutputStream("GoodMood"); OutputStreamWriter osr = new OutputStreamWriter(fos,"ISO-8859-1"); bw = new BufferedWriter(osr); String str; if((str=br.readLine())!=null){ bw.write(str); bw.newLine(); bw.flush(); } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } finally{ if(bw!=null){ try { bw.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } if(br!=null){ try { br.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } }
标签:style blog io color os sp java on 文件
原文地址:http://www.cnblogs.com/yjtm53/p/4157949.html