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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.         int multiplicand = 2 ;
  13.         int[] codePoints = "1234".codePoints().toArray();
  14.         for ( int codePoint : codePoints )
  15.         {
  16.             if ( Character.isDigit( codePoint ) )
  17.             {
  18.                 String digitAsText = Character.toString(codePoint);
  19.                 int x = Integer.parseInt( digitAsText );
  20.                 int y = Math.multiplyExact( x , multiplicand );
  21.                 System.out.println( x + " * " + multiplicand + " = " + y );
  22.             }
  23.         }
  24. 	}
  25. }
Success #stdin #stdout 0.25s 41328KB
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Standard input is empty
stdout
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1 * 2 = 2
2 * 2 = 4
3 * 2 = 6
4 * 2 = 8
https://ideone.com/ALw7LG
language:
Java (HotSpot 12)
created:
2 years ago
visibility:
public

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