42 lines
981 B
Plaintext
42 lines
981 B
Plaintext
== Why is this an issue?
|
|
|
|
There is no need to multiply the output of ``++Random++``'s ``++nextDouble++`` method to get a random integer. Use the ``++nextInt++`` method instead.
|
|
|
|
|
|
This rule raises an issue when the return value of any of ``++Random++``'s methods that return a floating point value is converted to an integer.
|
|
|
|
|
|
=== Noncompliant code example
|
|
|
|
[source,java]
|
|
----
|
|
Random r = new Random();
|
|
int rand = (int)r.nextDouble() * 50; // Noncompliant way to get a pseudo-random value between 0 and 50
|
|
int rand2 = (int)r.nextFloat(); // Noncompliant; will always be 0;
|
|
----
|
|
|
|
|
|
=== Compliant solution
|
|
|
|
[source,java]
|
|
----
|
|
Random r = new Random();
|
|
int rand = r.nextInt(50); // returns pseudo-random value between 0 and 50
|
|
----
|
|
|
|
|
|
ifdef::env-github,rspecator-view[]
|
|
|
|
'''
|
|
== Implementation Specification
|
|
(visible only on this page)
|
|
|
|
include::message.adoc[]
|
|
|
|
'''
|
|
== Comments And Links
|
|
(visible only on this page)
|
|
|
|
include::comments-and-links.adoc[]
|
|
endif::env-github,rspecator-view[]
|