21 lines
659 B
Plaintext
21 lines
659 B
Plaintext
Beginning with Java 7, it is possible to add underscores ('_') to numeric literals to enhance readability. The addition of underscores in this manner has no semantic meaning, but makes it easier for maintainers to understand the code.
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The number of digits to the left of a decimal point needed to trigger this rule varies by base.
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[frame=all]
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[cols="^1,^1"]
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|===
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|Base| Minimum digits
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|binary| 9
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|octal| 9
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|decimal| 6
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|hexadecimal| 9
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|===
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It is only the presence of underscores, not their spacing that is scrutinized by this rule.
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*Note* that this rule is automatically disabled when the project's ``++sonar.java.source++`` is lower than ``++7++``.
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