1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;
 
public class RealTimeComparison {
    public void scanner() {
        int i = 0;
        long start = System.currentTimeMillis();
        while(i < 100000 ) {
            String input = String.valueOf(i);
            Scanner sc =new Scanner(new ByteArrayInputStream(input.getBytes()));
            String str = sc.nextLine();
            i++;
        }
        long end = System.currentTimeMillis();
        System.out.println(end - start);
    }
    public void buffreader() {
        int i = 0;
        long start = System.currentTimeMillis();
        while(i < 100000 ) {
            String input = String.valueOf(i);
            
            BufferedReader br = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(input.getBytes())));
            try {
                String str = br.readLine();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            i++;
        }
        long end = System.currentTimeMillis();
        System.out.println(end - start);
    }
}
cs