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Explicit array filling

Reports loops that can be replaced with Arrays.setAll() or Arrays.fill() calls.

This inspection suggests replacing loops with Arrays.setAll() if the language level of the project or module is 8 or higher. Replacing loops with Arrays.fill() is possible with any language level.


for (int i=0; i<array.length; i++) { array[i] = calc(i); }

After the quick-fix is applied:

Arrays.setAll(array, this::calc);

Locating this inspection


Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Java | Verbose or redundant code constructs

New in 2017.1

Inspection options

Here you can find the description of settings available for the Explicit array filling inspection, and the reference of their default values.

Suggest 'Arrays.setAll()'

Not selected


By default bundled with

IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,

Can be installed with plugin

Java, 241.18072

Last modified: 18 June 2024