Java從文件讀入數據並打印到顯示器

Java從文件讀入數據並打印到顯示器：

1. import java.io.BufferedReader;
2. import java.io.File;
3. import java.io.FileReader;
4. import java.io.IOException;
5. import java.util.StringTokenizer;
7. public class test {
8. public static void main(String[] args) throws IOException {
9. File file = new File("nations.txt");
10. BufferedReader in = new BufferedReader(new FileReader(file));
11. String line = in.readLine();
12. while(line != null) {
13. StringTokenizer str = new StringTokenizer(line, ",");
14. String nation = str.nextToken();
15. String capital = str.nextToken();
16. System.out.println(nation + "\t\t" + capital);
17. line = in.readLine();
18. }
19. in.close();
20. }
21. }