Java中的輸入資料流

package input;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.Reader;public class InPutTest {public static void main(String[] args){File file = new File("C:\\Users\\Administrator\\Desktop\\a.txt");//lineReader(file);//characterReader(file);byteReader(file);}/* * 按行讀取 */public static void lineReader(File file){BufferedReader bufferedReader = null;String temp = "";try {bufferedReader = new BufferedReader(new FileReader(file));while((temp = bufferedReader.readLine()) != null){System.out.println(temp);}} catch (FileNotFoundException e) {e.printStackTrace();}catch (IOException e) {e.printStackTrace();}finally{if (bufferedReader != null) {try {bufferedReader.close();} catch (IOException e) {e.printStackTrace();}}}}/* * 按字元讀取 */public static void characterReader(File file){Reader reader = null;int temp = 0;try {reader = new InputStreamReader(new FileInputStream(file));while((temp = reader.read()) != -1){System.out.print(String.valueOf((char)temp));}} catch (FileNotFoundException e) {e.printStackTrace();}catch (IOException e) {e.printStackTrace();}finally{if (reader != null) {try {reader.close();} catch (IOException e) {e.printStackTrace();}}}}/* * 按位元組讀取 */public static void byteReader(File file){InputStream inputStream = null;byte[] bytes = new byte[1024];int temp = 0;try {inputStream = new FileInputStream(file);while((temp = inputStream.read(bytes)) != -1){System.out.println(new String(bytes, 0, temp));}} catch (FileNotFoundException e) {e.printStackTrace();}catch (IOException e) {e.printStackTrace();}finally{if (inputStream != null) {try {inputStream.close();} catch (IOException e) {e.printStackTrace();}}}}}