You can change values in the boxes before starting animation

Output

Variable Name      Value in Memory
NUMBER_OF_CHARS (constant)
CHARS_PER_LINE (constant)
gcd
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  1  public class TestRandomCharacter {
  2    /** Main method */
  3    public static void main(String args[]) {
  4      final int NUMBER_OF_CHARS = ;
  5      final int CHARS_PER_LINE = ;
  6  
  7      // Print random characters between 'a' and 'z', 25 chars per line
  8      for (int i = 0; i < NUMBER_OF_CHARS; i++) {
  9        char ch = RandomCharacter.getRandomLowerCaseLetter();
 10        if ((i + 1) % CHARS_PER_LINE == 0)
 11          System.out.println(ch);
 12        else
 13          System.out.print(ch);
 14      }
 15    }
 16  }