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  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. 	static double withFloor(int i) {
  11. 		return i / Math.pow(10, 1 + Math.floor(Math.log10(i)));
  12. 	}
  13.  
  14. 	static double withCeil(int i) {
  15. 		return i / Math.pow(10, Math.ceil(Math.log10(i)));
  16. 	}
  17.  
  18. 	static void test(int i) {
  19. 		System.out.printf("input=%d\twithFloor=%s\twithCeil=%s%n", i, withFloor(i), withCeil(i));
  20. 	}
  21.  
  22. 	public static void main (String[] args) throws java.lang.Exception
  23. 	{
  24. 		test(1);
  25. 		test(2);
  26. 		test(9);
  27. 		test(10);
  28. 		test(11);
  29. 		test(19);
  30. 		test(23);
  31. 		test(100);
  32. 		test(999);
  33. 	}
  34. }
Success #stdin #stdout 0.05s 711168KB
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Standard input is empty
stdout
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input=1	withFloor=0.1	withCeil=1.0
input=2	withFloor=0.2	withCeil=0.2
input=9	withFloor=0.9	withCeil=0.9
input=10	withFloor=0.1	withCeil=1.0
input=11	withFloor=0.11	withCeil=0.11
input=19	withFloor=0.19	withCeil=0.19
input=23	withFloor=0.23	withCeil=0.23
input=100	withFloor=0.1	withCeil=1.0
input=999	withFloor=0.999	withCeil=0.999
https://ideone.com/lWASle
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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