fork(5) download
  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. public static void main (String[] args) throws java.lang.Exception
  11. {
  12. for (int i=1;i<=12;i++) {
  13. System.out.printf("%3d",i);
  14. }
  15. System.out.println();
  16. for (int i=1;i<=12;i++) {
  17. System.out.printf("%3d",days(i));
  18. }
  19. System.out.println();
  20. }
  21.  
  22. public static int days(int m) {
  23. return (0xEEFBB3>>(m-1)*2 & 0b11) + 28;
  24. }
  25. }
Success #stdin #stdout 0.08s 380224KB
stdin
Standard input is empty
stdout
  1  2  3  4  5  6  7  8  9 10 11 12
 31 28 31 30 31 30 31 31 30 31 30 31