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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. // your code goes here
  13.  
  14. Scanner scanner = new Scanner(System.in);
  15. System.out.print( "Numerator: " );
  16. int numerator = scanner.nextInt();
  17. System.out.print( "Denominator: " );
  18. int denominator = scanner.nextInt();
  19. int result = numerator/denominator;
  20. System.out.printf("\nResult: %d / %d = %d\n",
  21. numerator, denominator, result );
  22.  
  23. }
  24. }
Runtime error #stdin #stdout #stderr 0.06s 2184192KB
stdin
2
d
stdout
Numerator: Denominator: 
stderr
Exception in thread "main" java.util.InputMismatchException
	at java.util.Scanner.throwFor(Scanner.java:864)
	at java.util.Scanner.next(Scanner.java:1485)
	at java.util.Scanner.nextInt(Scanner.java:2117)
	at java.util.Scanner.nextInt(Scanner.java:2076)
	at Ideone.main(Main.java:18)