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copied!<p>Just on its own, the problem is that you've given an expression which isn't a statement.</p> <p>With an assignment, however, it's fine:</p> <pre><code>import java.util.*; public class Test { public static void main(String[] args) { HashMap<String, String> map = new HashMap<String, String>(); String x = map.containsKey("A") ? "" : ""; } } </code></pre> <p>I suspect the problem is in some code you haven't shown. Please give more context - ideally a short but complete program like mine, but which demonstrates the error.</p> <p>EDIT: Now that you've edited the question, you'll probably get a different error. The conditional operator isn't a valid stand-alone statement, and each of the operands needs to be a non-void expression (with some other caveats as well). So instead of this:</p> <pre><code>getResponseDataMap().containsKey("A") ? a.setText(getResponseDataMap().get("A").toString()):"" </code></pre> <p>I <em>suspect</em> you want:</p> <pre><code>a.setText(getResponseDataMap().containsKey("A") ? getResponseDataMap().get("A").toString() : null); </code></pre> <p>However, I would personally write this as:</p> <pre><code>Object response = getResponseDataMap().get("A"); a.setText(response == null ? "" : response.toString()); </code></pre> <p>On the other hand, if you <em>only</em> want to set the text when the map contains the key, then you should go back to your original <code>if</code> statement, or possibly:</p> <pre><code>Object response = getResponseDataMap().get("A"); if (response != null) { a.setText(response.toString()); } </code></pre>

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