1. 介绍

1. 作用

字节流和字符流之间的转换

2. 分类

3. InputStreamReader构造函数

4. 代码实现

 /** */
  @Test
  public void test5() throws IOException {
    FileInputStream fis = new FileInputStream("hello.txt");
    InputStreamReader isr = new InputStreamReader(fis, "UTF-8");
    char[] chars = new char[1024];
    int len;
    while ((len = isr.read(chars)) != -1) {
      String str = new String(chars, 0, len);
      System.out.println(str);
    }
    isr.close();
    fis.close();
  }