before you begin make sure the following tools are installed:
javac - can be found in "C:\Program Files\Java\jdk-14\bin\"
dx - can be found in "C:\Users\magshimim\AppData\Local\Android\Sdk\build-tools\"
baksmali - download from "https://bitbucket.org/JesusFreke/smali/downloads/"
For example, let's say you have the following code in a java file named "HelloWorld.java":
```
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello World!");
}
}
```
To convert it to smali:
javac HelloWorld.java
dx --dex --output=classes.dex HelloWorld.class
baksmali.jar d classes.dex