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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 String months[];
  11.  
  12. 	public static void main (String[] args) throws java.lang.Exception
  13. 	{
  14.        months = new String[13];
  15.        months[0] = null ;
  16.        months[1] = "January";
  17.        months[2] = "February";
  18.        months[3] = "March";
  19.        months[4] = "April";
  20.        months[5] = "May";
  21.        months[6] = "June";
  22.        months[7] = "July";
  23.        months[8] = "August";
  24.        months[9] = "September";
  25.        months[10] = "October";
  26.        months[11] = "November";
  27.        months[12] = "December";
  28.  
  29.        System.out.println( "DEBUG args: " + Arrays.toString( args ) );
  30.        if( args.length == 0 ) {
  31.            System.out.println( "No month specified. No arguments passed to 'main' method." );
  32.        } else if ( args.length == 1 ) {  // Else we have a single argument as expected.
  33.            int m = Integer.parseInt( args[0] );
  34.            System.out.println( months[ m ] );
  35.          } else if ( args.length > 1 ) {  // Else we have multiple arguments, but expected only one.
  36.            System.out.println( "ERROR - more than one argument passed to 'main' method." );
  37.          } else {  // Else impossible. Should not reach this point. Defensive programming.
  38.             System.out.println( "ERROR - Unexpectedly reached IF-ELSE. Should be impossible." );
  39.          }
  40.  
  41. 	}
  42. }
Success #stdin #stdout 0.05s 4386816KB
comments (?)
stdin 
5 8 9
stdout 
DEBUG args: []
No month specified. No arguments passed to 'main' method.
https://ideone.com/q3jxsf
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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