Unnecessary conversion to 'String'
Reports unnecessary calls to static methods that convert their parameters to a string, e.g. String.valueOf()
or Integer.toString()
. Such calls are unnecessary when used in string concatenations.
Example:
After the quick-fix is applied:
Additionally such calls are unnecessary when used as arguments to library methods that do their own string conversion. Some examples of library methods that do their own string conversion are:
Classes
java.io.PrintWriter
,java.io.PrintStream
print()
,println()
Classes
java.lang.StringBuilder
,java.lang.StringBuffer
append()
Class
org.slf4j.Logger
trace()
,debug()
,info()
,warn()
,error()
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.
UnnecessaryCallToStringValueOf- 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 Report calls that can be replaced with a concatenation with the empty string option to also report cases where concatenations with the empty string can be used instead of a call to String.valueOf()
.
Inspection options
Here you can find the description of settings available for the Unnecessary conversion to 'String' inspection, and the reference of their default values.
- Report calls that can be replaced with a concatenation with the empty string
Not selected
Inspection Details | |
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By default bundled with: | |
Can be installed with plugin: | Java, 243.23126 |