21. Cast between char and int

• 
  char letterChar = 65;
                  // convert int to char (letterChar = 'A')
  char letterChar2 = (char) 65;
                  // this works too
  
  int letterInt = 'A';
                  // convert char to int (letterInt = 65)
  int letterInt2 = (int) 'A';
                  // this works too