Floating-point equality comparison

Reports floating-point values that are being compared using the == or != operator.

Floating-point values are inherently inaccurate, and comparing them for exact equality is seldom the desired semantics.

This inspection ignores comparisons with zero and infinity literals.

Example:

  void m(double d1, double d2) {
    if (d1 == d2) {}
  }

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.

FloatingPointEquality

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 | Numeric issues

Inspection Details
By default bundled with:	IntelliJ IDEA 2024.3, Qodana for JVM 2024.3,
Can be installed with plugin:	Java, 243.23126

Last modified: 03 December 2024