'size() == 0' can be replaced with 'isEmpty()'
Reports .size() or .length() comparisons with a 0 literal that can be replaced with a call to .isEmpty().
Example:
After the quick-fix is applied:
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.
SizeReplaceableByIsEmpty- 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.
Use the Ignored classes table to add classes for which any .size() or .length() comparisons should not be replaced.
Use the Ignore expressions which would be replaced with !isEmpty() option to ignore any expressions which would be replaced with !isEmpty().
Inspection options
Here you can find the description of settings available for the 'size() == 0' can be replaced with 'isEmpty()' inspection, and the reference of their default values.
- Ignored classes
Default value:
Empty- Ignore expressions which would be replaced with '!isEmpty()'
Default value:
Not 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:
More detailed instructions as well as other ways and options that you have can be found in the product documentation:
Inspection Details | |
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By default bundled with: |