文件/O流类的构造函数 通过输入输出文件创建FileInputStream, FileOutputStream,FileReader,.和FileWriter实例： FileInputStream infile new FileInputStream("in.dat"); FileOutputStream outfile new FileOutputStream(out.dat); FileReader infile new FileReader("in.dat); FileWriter outfile new FileWriter(out.dat); ©2006计算机系杨厚群 All rights lefts reserved. ©2006 计算机系 杨厚群 All rights & lefts reserved. 文件I/O流类的构造函数 通过输入输出文件创建 FileInputStream, FileOutputStream, FileReader, 和FileWriter 实例: FileInputStream infile = new FileInputStream("in.dat"); FileOutputStream outfile = new FileOutputStream("out.dat"); FileReader infile = new FileReader("in.dat"); FileWriter outfile = new FileWriter("out.dat");