缓冲区Buffered

package test;


import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.math.BigDecimal;
import java.nio.channels.NonReadableChannelException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.*;

public class Main {

	private static final String space_operator = " ";
	private static final double pi = Math.PI;
	private static final String LINE_SEPARATOR = System.getProperty("line.separator");
	public static void main(String[] args) throws Exception {

		FileReader fileReader = new FileReader("Myheat.txt");
		FileWriter fileWriter = new FileWriter("Copy_MyHeat.txt");
		BufferedReader bufferedReader = new BufferedReader(fileReader);
		BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
		
		/*
		 * 第一种方法
		 */
		
		/*
		int ch = 0;
		while((ch = bufferedReader.read()) != -1)
		{
			bufferedWriter.write(ch);
		}
		
		bufferedReader.close();
		bufferedWriter.close();
		*/
		
		
		
		/*
		 * 第二种方法
		 */
		
		String string = null;
		while((string = bufferedReader.readLine()) != null)
		{
			bufferedWriter.write(string);
			/*
			 * 这个方法就是用系统的信息就是System.getProperty("line.separator");
			 */
			bufferedWriter.newLine();
			bufferedWriter.flush();
		}
		bufferedReader.close();
		bufferedWriter.close();
	}
}