HackerRank Java- BigDecimal



Given an array, s, of n real number strings, sort them in descending order — but wait, there's more! Each number must be printed in the exact same format as it was read from stdin, meaning that .1 is printed as .1, and 0.1 is printed as 0.1. If two numbers represent numerically equivalent values , then they must be listed in the same order as they were received as input).



  1. import java.math.BigDecimal;
  2. import java.util.*;
  3. class Solution{
  4. public static void main(String []args){
  5. //Input
  6. Scanner sc= new Scanner(System.in);
  7. int n=sc.nextInt();
  8. String []s=new String[n+2];
  9. for(int i=0;i<n;i++){
  10. s[i]=sc.next();
  11. }
  12. sc.close();
  13. Arrays.sort(s, new Comparator<String>() {
  14. @Override
  15. public int compare(String s1, String s2) {
  16. if (s1 == null || s2 == null) {
  17. return 0;
  18. }
  19. BigDecimal bd1 = new BigDecimal(s1);
  20. BigDecimal bd2 = new BigDecimal(s2);
  21. return bd2.compareTo(bd1);
  22. }
  23. });
  24. //Output
  25. for(int i=0;i<n;i++)
  26. {
  27. System.out.println(s[i]);
  28. }
  29. }
  30. }

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