throw new UnsupportedOperationException();
  }

  @Override
  protected Map<String, Integer> makeEmptyMap() {
    throw new UnsupportedOperationException();
  }

  @Override
  protected Table<Character, String, Integer> makeTable() {
    return ArrayTable.create(asList('a', 'b', 'c'), asList("one", "two", "three", "four"));
  }

	}
}

// htmlSafeSet holds the value true if the ASCII character with the given
// array position can be safely represented inside a JSON string, embedded
// inside of HTML <script> tags, without any additional escaping.
//
// All values are true except for the ASCII control characters (0-31), the
// double quote ("), the backslash character ("\"), HTML opening and closing
// tags ("<" and ">"), and the ampersand ("&").

  public void testTryParseAllCodePoints() {
    // Exercise non-ASCII digit test cases and the like.
    char[] tmp = new char[2];
    for (int i = Character.MIN_CODE_POINT; i < Character.MAX_CODE_POINT; i++) {
      Character.toChars(i, tmp, 0);
      checkTryParse(String.copyValueOf(tmp, 0, Character.charCount(i)));
    }
  }

  @GwtIncompatible // Doubles.tryParse
  public void testTryParseOfToStringIsOriginal() {

            // -1
            //  or QUALIFIERS.size and then resort to lexical ordering. Most comparisons are decided by the first
            // character,
            // so this is still fast. If more characters are needed then it requires a lexical sort anyway.
            return i == -1 ? (QUALIFIERS.size() + "-" + qualifier) : String.valueOf(i);
        }

        @Override

@GwtCompatible
@ElementTypesAreNonnullByDefault
public class HashBasedTableColumnTest extends ColumnTests {
  public HashBasedTableColumnTest() {
    super(false, true, true, true, false);
  }

  @Override
  Table<String, Character, Integer> makeTable() {
    return HashBasedTable.create();
  }

@GwtCompatible
@ElementTypesAreNonnullByDefault
public class TreeBasedTableRowMapTest extends RowMapTests {
  public TreeBasedTableRowMapTest() {
    super(false, true, true, true);
  }

  @Override
  Table<String, Integer, Character> makeTable() {
    return TreeBasedTable.create();
  }

@ElementTypesAreNonnullByDefault
public class HashBasedTableColumnMapTest extends ColumnMapTests {
  public HashBasedTableColumnMapTest() {
    super(false, true, true, false);
  }

  @Override
  Table<Integer, String, Character> makeTable() {
    return HashBasedTable.create();
  }

@GwtCompatible
@ElementTypesAreNonnullByDefault
public class HashBasedTableRowMapTest extends RowMapTests {
  public HashBasedTableRowMapTest() {
    super(false, true, true, true);
  }

  @Override
  Table<String, Integer, Character> makeTable() {
    return HashBasedTable.create();
  }

        this.calledName = this.hostName.name;

        if ( Character.isDigit(this.calledName.charAt(0)) ) {
            int i, len, dots;
            char[] data;

            i = dots = 0; /* quick IP address validation */
            len = this.calledName.length();
            data = this.calledName.toCharArray();
            while ( i < len && Character.isDigit(data[ i++ ]) ) {
                if ( i == len && dots == 3 ) {

            't'.code -> append('\t')
            'f'.code -> append('\u000c')
            'u'.code -> append(buffer.readUtf8(4).toInt(16).toChar())
            else -> throw IllegalArgumentException("unexpected escape character in $s")
          }
        }
      }
    }
  }