public class ReaderDemo {
public static void main(String[] args) throws IOException {
// 建立字元輸入流
InputStreamReader isr = new InputStreamReader(new FileInputStream("a.txt"));
// public int read():一次讀取一個字元
// int ch;
// while((ch = isr.read()) != -1){
// System.out.print((char)ch);
// }
// public int read(char[] cbuf):一次讀取一個字元數組
char[] chs = new char[1024];
int len;// 每次真實讀到資料的個數
while((len = isr.read(chs)) != -1){
System.out.print(new String(chs,0,len));
}
isr.close();
}
}