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44 lines
1.6 KiB
HTML
44 lines
1.6 KiB
HTML
<html>
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<body>
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Reports <code>if</code> statements that can be replaced with <code>switch</code> statements.
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<p>The replacement result is usually shorter and clearer.</p>
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<p><b>Example:</b></p>
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<pre><code>
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void test(String str) {
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if (str.equals("1")) {
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System.out.println(1);
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} else if (str.equals("2")) {
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System.out.println(2);
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} else if (str.equals("3")) {
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System.out.println(3);
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} else {
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System.out.println(4);
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}
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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 test(String str) {
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switch (str) {
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case "1" -> System.out.println(1);
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case "2" -> System.out.println(2);
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case "3" -> System.out.println(3);
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default -> System.out.println(4);
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}
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}
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</code></pre>
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<!-- tooltip end -->
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<p>This inspection only reports if the language level of the project or module is 7 or higher.</p>
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<p>Use the <b>Minimum number of 'if' condition branches</b> field to specify the minimum number of <code>if</code> condition branches
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for an <code>if</code> statement to have to be reported. Note that the terminal <code>else</code> branch (without <code>if</code>) is not counted.</p>
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<p>
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Use the <b>Suggest switch on numbers</b> option to enable the suggestion of <code>switch</code> statements on
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primitive and boxed numbers and characters.
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<p>
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Use the <b>Suggest switch on enums</b> option to enable the suggestion of <code>switch</code> statements on
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<code>enum</code> constants.
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<p>
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Use the <b>Only suggest on null-safe expressions</b> option to suggest <code>switch</code> statements that can't introduce a <code>NullPointerException</code> only.
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</p>
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</body>
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</html> |