In a folder I have `{HelloWorld,FakeContext}.java` and face:

```bash
javac -source 1.10 -target 1.10 -cp /opt/android-sdk/platforms/android-36/android.jar HelloWorld.java
```
```
warning: [options] system modules path not set in conjunction with -source 10
HelloWorld.java:8: error: '.' expected
import FakeContext;
^
1 error
1 warning
```
Apr 11, 9:11pm

The error you're encountering is due to how you're trying to import FakeContext in your HelloWorld.java file. Let's break down the issue and how to fix it:

Error Analysis

1. Import Statement Issue

  • The error:

    text
    HelloWorld.java:8: error: '.' expected
import FakeContext;
                  ^

    indicates that the compiler expects a .java file or a package-qualified import, but you're trying to import FakeContext directly as if it were a package or a static import.

  • If FakeContext is a class in the same directory, you should import it with its package name (if it has one) or as a static import if it's a static class.

2. System Modules Path Warning

  • The warning: 
    text
    warning: [options] system modules path not set in conjunction with -source 10
    is related to the -source 10 flag and the Java module system. It's not the cause of your error, but you can suppress it by using a more modern -source and -target version (e.g., -source 11 -target 11).

How to Fix

Option 1: Import FakeContext Correctly

If FakeContext is a class in the same directory (no package), you should import it like this:

java
import FakeContext;

But if it's in a package (e.g., com.example), you should import it as:

java
import com.example.FakeContext;

Option 2: Compile Both Files Together

If both HelloWorld.java and FakeContext.java are in the same directory, you can compile them together:

bash
javac -source 11 -target 11 -cp /opt/android-sdk/platforms/android-36/android.jar HelloWorld.java FakeContext.java

This ensures the compiler sees both files and resolves the import correctly.

Option 3: Use a Package

If FakeContext is in a package, make sure:

  • The package declaration in FakeContext.java matches the import in HelloWorld.java.
  • The file structure matches the package name (e.g., if the package is com.example, the file should be in com/example/FakeContext.java).

Recommended Fix

  1. Check the package declaration in FakeContext.java and use the correct import in HelloWorld.java.
  2. Compile both files together if they are in the same directory and share dependencies.
  3. Update the -source and -target flags to a more modern version (e.g., -source 11 -target 11).

Example

If your files are structured like this:

text
.
├── HelloWorld.java
└── FakeContext.java

Then your HelloWorld.java should import FakeContext as:

java
import FakeContext;

And you should compile with:

bash
javac -source 11 -target 11 -cp /opt/android-sdk/platforms/android-36/android.jar HelloWorld.java FakeContext.java
Apr 11, 9:11pm

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