Java OCA OCP Practice Question 2157

Question

What will the following print when compiled and run? 

public class Main {
  public static void main(String[] args) {
    System.out.printf("|%0.0f|", 12.5);
    System.out.printf("|%0.s|", 12.5);
    System.out.printf("|%( +-10.2f|", -12.5);
    System.out.format("|%10.2f|%d", 12.5 );
    System.out.format("|%!10.2f|", 12.5 );
  }
}

Select the one correct answer.

  • (a) |12|12.|(12.50) | 12.50| -12.50|
  • (b) |13|13.|(-12.50) | 12.50| -12.50|
  • (c) The program will not compile.
  • (d) The program will compile, but throw an exception when run.


(d)

Note

The respective exceptions thrown by the statements above are:

  • java.util.MissingFormatWidthException (requires positive width)
  • java.util.UnknownFormatConversionException (because of width 0)
  • java.util.IllegalFormatFlagsException (because of the flag combination '( +-')
  • java.util.MissingFormatArgumentException (the second format has no matching argument)
  • java.util.UnknownFormatConversionException ( '!' is an unknown flag)



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