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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. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		String value = " ";
  13. 			System.out.println(value);
  14.  
  15. 				value = String.format("%.2f", Double.parseDouble(value));
  16.  
  17. 				System.out.println(value);
  18. 	}
  19. }
Runtime error #stdin #stdout #stderr 0.06s 3359744KB
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stdin
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Standard input is empty
stdout
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stderr
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Exception in thread "main" java.lang.NumberFormatException: empty String
	at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1842)
	at sun.misc.FloatingDecimal.parseDouble(FloatingDecimal.java:110)
	at java.lang.Double.parseDouble(Double.java:538)
	at Ideone.main(Main.java:15)
https://ideone.com/ji2cDX
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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