[QZ1] build.gradle, sourceCompatibility and targetCompatibility question

[Wang-Matthew]

For the instructions in 0.1 of the textbook it says to open build.gradle and make sure sourceCompatibility and targetCompatibility are set to java version 17.

I looked through the IntelliJ documentation which told me those were historical options for the Java compiler and said you could also set them with the JavaCompile task. I used this code:

tasks.withType(JavaCompile) {
    sourceCompatibility = JavaVersion.VERSION_17
    targetCompatibility = JavaVersion.VERSION_17
}

instead and I was wondering if this was acceptable because I was getting errors when I wrote

sourceCompatibility = JavaVersion.VERSION_17
targetCompatibility = JavaVersion.VERSION_17

as the textbook instructs.

[jdchoi77]

@Wang-Matthew thanks for pointing this out; for simplicity, it'd be better to use compileJava instead as follows:

compileJava {
    sourceCompatibility = JavaVersion.VERSION_17
    targetCompatibility = JavaVersion.VERSION_17
}

I updated the build.gradle so please take a look.