Inspectopedia 2025.2 Help

Suspicious integer division assignment

Reports assignments whose right side is a division that shouldn't be truncated to integer.

While occasionally intended, this construction is often buggy.

Example:

int x = 18; x *= 3/2; // doesn't change x because of the integer division result

This code should be replaced with:

int x = 18; x *= 3.0/2;

Locating this inspection

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.

SuspiciousIntegerDivAssignment
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 | Probable bugs

In the inspection options, you can disable warnings for suspicious but possibly correct divisions, for example, when the dividend can't be calculated statically.

void calc(int d) { int x = 18; x *= d/2; }

New in 2019.2

Inspection options

Here you can find the description of settings available for the Suspicious integer division assignment inspection, and the reference of their default values.

Report suspicious but possibly exact divisions

Default value:

Selected

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection SuspiciousIntegerDivAssignment

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

Inspection Details

By default bundled with:

IntelliJ IDEA 2025.2, Qodana for JVM 2025.2,

Last modified: 18 September 2025