java fast input

1// this program gives you fast input, especially for competitive programming
2import java.util.*;
3import java.io.*;
4
5public class PutYourClassNameHere {
6	static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
7	static StringTokenizer st;
8  
9	public static void main(String[] args) throws IOException{
10    	// write your code here
11	}
12  
13	static String next() throws IOException {
14		while (st == null || !st.hasMoreTokens())
15			st = new StringTokenizer(readLine());
16		return st.nextToken();
17	}
18	static long readLong() throws IOException {
19		return Long.parseLong(next());
20	}
21	static int readInt() throws IOException {
22		return Integer.parseInt(next());
23	}
24	static double readDouble() throws IOException {
25		return Double.parseDouble(next());
26	}
27	static char readCharacter() throws IOException {
28		return next().charAt(0);
29	}
30	static String readLine() throws IOException {
31		return br.readLine().trim();
32	}
33}