While not mandatory, using the @Override
annotation on compliant methods improves readability by making it explicit that methods are
overriden.
A compliant method either overrides a parent method or implements an interface or abstract method.
class ParentClass { public boolean doSomething(){/*...*/} } class FirstChildClass extends ParentClass { public boolean doSomething(){/*...*/} // Noncompliant }
class ParentClass { public boolean doSomething(){/*...*/} } class FirstChildClass extends ParentClass { @Override public boolean doSomething(){/*...*/} // Compliant }
This rule does not raise issues when overriding methods from Object
(eg: equals()
, hashCode()
,
toString()
, …).