Method toString

onjava/TypeCounter.java:33–40

()

    }
  }
  @Override public String toString() {
    String result = entrySet().stream()
      .map(pair -> String.format("%s=%s",
        pair.getKey().getSimpleName(),
        pair.getValue()))
      .collect(Collectors.joining(", "));
    return "{" + result + "}";
  }
}