Field may be 'final'
Reports fields that can be safely made final
. All final
fields have a value and this value does not change, which can make the code easier to reason about.
To avoid too expensive analysis, this inspection only reports if the field has a private
modifier or it is defined in a local or anonymous class. A field can be final
if:
It is
static
and initialized once in its declaration or in onestatic
initializer.It is non-
static
and initialized once in its declaration, in one instance initializer or in every constructor
And it is not modified anywhere else.
Example:
public class Person {
private String name; // can be final
Person(String name) {
this.name = name;
}
public String getName() {
return name;
}
}
After the quick-fix is applied:
public class Person {
private final String name;
Person(String name) {
this.name = name;
}
public String getName() {
return name;
}
}
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
FieldMayBeFinal
Use the "Annotations" button to modify the list of annotations that assume implicit field write.
Here you can find the description of settings available for the Field may be 'final' inspection, and the reference of their default values.
Inspection Details | |
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By default bundled with: | |
Can be installed with plugin: | Java, 243.23126 |
Thanks for your feedback!