BufferedReader的readLine方法:
可以讀取一整行字元串
public String readLine():讀取一整行字元串,傳回值當中不包含換行符。
public class ReadLine {
public static void main(String[] args) throws IOException {
FileReader fr = new FileReader("file11.txt"); // 檔案三行
BufferedReader br = new BufferedReader(fr);
// String line = br.readLine();
// System.out.println(line); // Hello
//
// line = br.readLine();
// System.out.println(line); // World
//
// line = br.readLine();
// System.out.println(line); // Java
//
// line = br.readLine();
// System.out.println(line); // null
// System.out.println(line == null); //true
String line1;// 一行字元串
while ((line1 = br.readLine()) != null) {
System.out.println(line1);
}
br.close();
}
}