一、將數據讀出來顯示到console內：?
代碼如下：?
package InputStream;

import java.io.BufferedReader;?
import java.io.BufferedWriter;?
import java.io.FileReader;?
import java.io.IOException;?
import java.io.OutputStream;?
import java.io.OutputStreamWriter;?
import java.io.Writer;

public class OutputStreamWriterDemo {?
public static void main(String[] args) throws IOException {?
//創建輸入流對象?
BufferedReader br = new BufferedReader(new FileReader(“copy.txt”));

//method1(br);//創建輸出流對象Writer w=new OutputStreamWriter(System.out); //轉換成字符流BufferedWriter bw = new BufferedWriter(w);String line ;while((line = br.readLine())!=null) {bw.write(line);bw.newLine();}br.close();bw.close(); }private static void method1(BufferedReader br) throws IOException {OutputStream os = System.out;String line;while((line = br.readLine())!=null) {os.write(line.getBytes());os.write("\r\n".getBytes());} }

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24

}

二、將數據從console輸入存到制定的文本中?
代碼如下：?
package InputStream;

import java.io.FileWriter;?
import java.io.IOException;?
import java.io.InputStream;?
import java.io.InputStreamReader;?
import java.io.Reader;

public class InputStreamReaderDemo {

public static void main(String[] args) throws IOException {//method1();InputStream is = System.in; //將鍵盤輸入的數據存入到is里面Reader r= new InputStreamReader(is); //用r來讀取is里面的數據，將字節轉換成字符類型的FileWriter fw = new FileWriter("c.txt"); //用fw來將r讀出來的數據寫入到c.txt里面char [] ch = new char[1024];int len;while((len = r.read(ch))!=-1) {fw.write(ch,0,len);fw.flush();}fw.close();r.close(); }private static void method1() throws IOException {InputStream is = System.in;FileWriter fw = new FileWriter("b.txt");int len;byte [] byt = new byte [1024];while((len = is.read(byt))!=-1) {fw.write(new String(byt,0,len));fw.flush();}is.close();fw.close(); }

轉載于:https://www.cnblogs.com/kekexuanxaun/p/9480322.html

總結

以上是生活随笔為你收集整理的字节流输入输出代码的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。