public class charTest {
   public static void main(String[] pars) {
      char ch  = 'a';
      long l   = 0;
      int i    = 0;
      byte b   = 0;
      short s  = 0;

      l = ch;
      i = ch;
      s = ch;  // Doesn't compile, loss of precision
      b = ch;  // Doesn't compile, loss of precision

      s = (short)ch;
      b = (byte)ch;

      ch = l;  // Doesn't compile, loss of precision
      ch = i;  // Doesn't compile, loss of precision
      ch = s;  // Doesn't compile, loss of precision
      ch = b;  // Doesn't compile, loss of precision

      ch = (char)l;
      ch = (char)i;
      ch = (char)s;
      ch = (char)b;

      ch = '\u0041';                 // 41 in hex is 65 decimal, which is 'A'
      System.out.println(ch);        
      System.out.println('\u0007');  // 07 in hex rings the bell

      ch = 65;
      System.out.println(ch);
      b = (byte)ch;
      System.out.println(b);
      ch = (char)b;
      System.out.println(ch);
   }
}