“Syntax error on token ”module“, interface expected”

问题

this bit of code gives me the error message: "Syntax error on token "module", interface expected. Does anyone know why?

module TeaThiever{
}

回答1:

The module statement is only valid in a module-info.java file and it must be used with Java 9 or above.

In Eclipse set the 'Compiler compliance level' on the project 'Java Compiler' properties page to be Java 9 or above (you also need to have a suitable Java installed).

来源：https://stackoverflow.com/questions/62129181/syntax-error-on-token-module-interface-expected