使用fileinputStream 和FileoutputStream读写文件。
public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub //新建一个对象 FileInputStream in =new FileInputStream("E:/java/qwer/qwer.txt"); // byte[] a =new byte [100]; int i1 =0; while(i1 != -1){ System.out.print(new String(a,0,100));//a储存读取数据的缓冲区;0数组a的起始偏移量;读取的最大字节数; i1 = in.read(a); } in.close(); }}