public class ReadFileByLines {
	public static void main(String[] args) {
		try{
			 //1.開啟一個file
			File file = new File("E:/test.txt");
			//2.InputStreamReader<-FileInputStream<-file
			FileInputStream fis = new FileInputStream(file);
			InputStreamReader is = new InputStreamReader(fis);
			//3.用BufferedReader(<-InputStreamReader)的readLine()方法讀取
			BufferedReader br = new BufferedReader(is);
			//4.輸出
			String txtLine = null;		
			while((txtLine=br.readLine())!=null){
				System.out.println(txtLine);	
			}
			br.close();
		}catch(Exception e){
			e.printStackTrace();
		}
	}
}