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Declaring multiple variables in a single declaration could cause confusion about the types of variables and their initial values. In particular, do not declare any of the following in a single declaration:

• variables Variables of different types
• a A mixture of initialized and uninitialized variables

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• local variable declaration statements [Java 2011, §14.4],
• field declarations [Java 2011, §8.3],
• field (constant) declarations [Java 2011, §9.3],

Noncompliant Code Example (Initialization)

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Declarations of loop indices should be included within a for statement even if that it results in variable declarations that do not include a comment about the purpose of the variable:

public class Example {
  void function() {
    int mx = 100; // someSome max value

    for (int i = 0; i < mx; ++i ) {
      /* ... */
    }

  }
}

Such declarations are not required to be in a separate line, and the explanatory comment may also be omitted.

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