文件读写操作

public class ReadAndWriteText {
	public static void main(String[] args) throws Exception  {
	     int s;
	     File file = new File("c:/1.ini");
  	     InputStream rd=new FileInputStream(file);
              FileReader in=new FileReader(file); 
              Properties pro=new Properties();
    	       pro.load(rd); 	
              String database=pro.getProperty("dataBase");
              String username=pro.getProperty("username");
              String pwd=pro.getProperty("pwd");
              System.out.println(database);
              System.out.println(username);
              System.out.println(pwd);
		while((s=in.read())!=-1){
			System.out.print((char)s);
		}
		File f=new File("C:/2.ini");
		FileWriter out=new FileWriter(f);
		while((s=rd.read())!=-1){
			out.write(s);
			out.flush();
	}
		
	}

}