50 lines
1.2 KiB
Plaintext
50 lines
1.2 KiB
Plaintext
== Why is this an issue?
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Generating random floating point values to cast them into integers is inefficient.
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A random bounded integer value can be generated with a single proper method call.
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Use `nextInt` to make the code more efficient and the intent clearer.
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=== Noncompliant code example
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[source,java,diff-id=1,diff-type=noncompliant]
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----
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Random r = new Random();
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int rand = (int) (r.nextDouble() * 50); // Noncompliant way to get a pseudo-random value between 0 and 50
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int rand2 = (int) r.nextFloat(); // Noncompliant; will always be 0;
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----
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=== Compliant solution
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[source,java,diff-id=1,diff-type=compliant]
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----
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Random r = new Random();
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int rand = r.nextInt(50); // returns pseudo-random value between 0 and 50
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int rand2 = 0;
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----
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ifdef::env-github,rspecator-view[]
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'''
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== Implementation Specification
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(visible only on this page)
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=== Message
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Use "java.util.Random.nextInt()" instead.
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'''
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== Comments And Links
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(visible only on this page)
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=== on 21 Nov 2024, 16:48:00 Alban Auzeill wrote:
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[test-code-support-investigation-for-java] Decision for scope: Main -> All.
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=== on 11 Oct 2014, 11:58:06 Freddy Mallet wrote:
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Sounds good for me !
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endif::env-github,rspecator-view[]
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