字符流

import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class CharSteam {

	public static void main(String[] args) {
		FileReader fileReader = null;
		FileWriter fileWriter = null;
		
		try {
			
			fileReader = new FileReader("D:\\target\\hi\\123\\newtest.txt");
			fileWriter = new FileWriter("D:\\target\\hi\\zijie.txt");
			
			char [] car = new char[1024];
			int validLength;
			while((validLength=fileReader.read(car))!=-1) {
				fileWriter.write(car,0,validLength);
			}
			fileWriter.flush();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			if(fileReader!=null) {
				try {
					fileReader.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			
			if(fileWriter!=null) {
				try {
					fileWriter.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
		
	}
}