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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. import java.text.NumberFormat;
  7.  
  8. /* Name of the class has to be "Main" only if the class is public. */
  9. class Ideone
  10. {
  11. public static void main (String[] args) throws java.lang.Exception
  12. {
  13. NumberFormat nf = NumberFormat.getInstance();
  14. nf.setMinimumFractionDigits(2);
  15. Double myVal = 4.0;
  16. Double myOtherVal = 4.15465454;
  17. System.out.println(nf.format(myVal));
  18. System.out.println(nf.format(myOtherVal));
  19. }
  20. }
Success #stdin #stdout 0.06s 4386816KB
stdin
Standard input is empty
stdout
4.00
4.155