org.sonar.l10n.java.rules.squid.S2140.html Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of java-checks Show documentation

There is a newer version: 8.6.0.37351

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
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
Random r = new Random();
int rand = r.nextInt(50);  // returns pseudo-random value between 0 and 50