Writer输出流写到文件（追加方式）

package chap10.sec04;


import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.Reader;
import java.io.Writer;


public class Demo3 {


public static void main(String[] args) throws Exception {
// TODO Auto-generated method stub
File file =new File("D:/测试文件.txt");
Writer out=new FileWriter(file,true);
String str="你是中国人";
out.write(str);
out.close();

}


}