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'char' expression used in arithmetic context

Reports expressions of the char type used in addition or subtraction expressions.

Such code is not necessarily an issue but may result in bugs (for example, if a string is expected).

Example: int a = 'a' + 42;

After the quick-fix is applied: int a = (int) 'a' + 42;

For the String context:

int i1 = 1; int i2 = 2; System.out.println(i2 + '-' + i1 + " = " + (i2 - i1));

After the quick-fix is applied:

System.out.println(i2 + "-" + i1 + " = " + (i2 - i1));

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