rspec/rules/S2293/rule.adoc
Arseniy Zaostrovnykh 7ca29f686f Force linebreaks
2021-02-02 15:02:10 +01:00

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Java 7 introduced the diamond operator (``++<>++``) to reduce the verbosity of generics code. For instance, instead of having to declare a ``++List++``'s type in both its declaration and its constructor, you can now simplify the constructor declaration with ``++<>++``, and the compiler will infer the type.
*Note* that this rule is automatically disabled when the project's ``++sonar.java.source++`` is lower than ``++7++``.
== Noncompliant Code Example
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List<String> strings = new ArrayList<String>(); // Noncompliant
Map<String,List<Integer>> map = new HashMap<String,List<Integer>>(); // Noncompliant
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== Compliant Solution
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List<String> strings = new ArrayList<>();
Map<String,List<Integer>> map = new HashMap<>();
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