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Single character string concatenation

Reports concatenation with string literals that consist of one character.

These literals may be replaced with equivalent character literals, gaining some performance enhancement.

Example:

String hello = hell + "o";

After the quick-fix is applied:

String hello = hell + 'o';

Inspection Details

By default bundled with:

IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,

Can be installed with plugin:

Java, 241.16690

Last modified: 29 April 2024