reading from a text file in java

1try(BufferedReader br = new BufferedReader(new FileReader("file.txt"))) {
2    StringBuilder sb = new StringBuilder();
3    String line = br.readLine();
4
5    while (line != null) {
6        sb.append(line);
7        sb.append(System.lineSeparator());
8        line = br.readLine();
9    }
10    String everything = sb.toString();
11}

1 public static void main(String[] args) throws Exception 
2  { 
3    // pass the path to the file as a parameter 
4    FileReader fr = new FileReader("C:\\Users\\pankaj\\Desktop\\test.txt"); 
5  
6    int i; 
7    while ((i=fr.read()) != -1) 
8      System.out.print((char) i); 
9  }