how to scan integer in java

1BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
2int a = Integer.parseInt(br.readLine());

1import java.util.*;
2public class HowToScan {
3   public static void main( String args[] ) 
4   {
5      Scanner S = new Scanner(System.in);
6      int a;
7      int b;
8      int sum;
9        a = S.nextInt();
10        b = S.nextInt();
11        	sum = a + b;
12        System.out.println( a + "+" + b  + "=" + sum );
13   }
14}