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24 lines
831 B
HTML
24 lines
831 B
HTML
<html>
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<body>
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Reports <code>equals()</code> being called to compare a <code>String</code> with an empty string.
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In this case, using <code>.isEmpty()</code> is better as it shows you exactly what you're checking.
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<p><b>Example:</b></p>
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<pre><code>
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void checkString(String s){
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if ("".equals(s)) throw new IllegalArgumentException();
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}
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</code></pre>
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<p>After the quick-fix is applied:</p>
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<pre><code>
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void checkString(String s){
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if (s != null && s.isEmpty()) throw new IllegalArgumentException();
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}
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</code></pre>
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<!-- tooltip end -->
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<p>
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<code>"".equals(str)</code> returns false when <code>str</code> is null. For safety, this inspection's quick-fix inserts an explicit
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null-check when
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the <code>equals()</code> argument is nullable. Use the option to make the inspection ignore such cases.
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</p>
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</body>
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</html> |