这是在Java中重复方法调用的最干净的方法吗？ [英] Is this the cleanest way to repeat method call in Java?

问题描述

以下内容看起来像是凌乱的代码，但我想不出如何使其更整洁。有任何想法吗？我想为10、20和30的值调用doSearch。如果没有返回任何值的结果，那么我想尝试以下值。否则，请退出。我知道这行得通，但这是最可读的方法吗？

The following looks like messy code, but I can't think how to make it neater. Any ideas? I want to call doSearch for values of 10, 20 and 30. If no results are returned for a value, then I want to try for the following value. Otherwise, just exit out. I know this would work, but is it the most readable way?

SearchResult result = doSearch("10");
if (result.getResults() == null) {
  result = doSearch("20");
  if (result.getResults() == null) {
    result = doSearch("30");
    if (result.getResults() == null) {
      // put code to deal with lack of results here
    }
  }
}

推荐答案

这里是一个建议：

SearchResult result = null;
for (String attempt : "10,20,30".split(","))
    if ((result = doSearch(attempt)) != null)
        break;

if (result == null) {
    // put code to deal with lack of results here
}

（如Marko Topolnik在评论中所建议。）

(as suggested by Marko Topolnik in the comments.)

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