Java 1.7 still telling me that strings in switch statements are incompatible

Question

I'm using java 1.7 in intellij and it's giving me a compile error as if I'm using pre-1.7. Saying, "Incompatible type. Found 'java.lang.String'. required 'byte, char, short, or int'.

I'm rattling my brain trying to figure out why this is. Thanks

Answer 1

You need to change language level in your IDE.

Check these settings:

• File > Project Structure > Project > Project SDK
• File > Project Structure > Project > Project Language Level
• File > Project Structure > Modules > Your module > Sources > Language Level
• File > Project Structure > Modules > Your module > Dependencies > Module SDK

Also check compiler settings. Sometimes it adds extra arguments to compiler:

• File > Settings > Compiler > Java Compiler > Byte code version

If you use maven plugin enable auto-import. Then the language level will be detected automatically from your pom.xml settings.

Answer 2

In your project settings most probably you use java compiler java 1.6 or prior. Change that to java 1.7