how to read text file as variable in java

1public static void readAsString() {
2			 String lCurentDir = System.getProperty("user.dir")+"/aa.txt";
3			 FileReader fr;
4			try {
5				fr = new FileReader(lCurentDir);
6				 BufferedReader br = new BufferedReader(fr);
7		            String s="";
8		            s=br.readLine();
9		            System.out.println(s);
10			} catch (FileNotFoundException e) {
11				// TODO Auto-generated catch block
12				e.printStackTrace();
13			} catch (IOException e) {
14				// TODO Auto-generated catch block
15				e.printStackTrace();
16			}
17	           
18
19		}