The Jasmin assembler and an example file called "Hello77.j" should be available to you under my account on solar.
Copy it to your directory
cp ../b321001/Hello77.j .
Compile it with Jasmin
java -jar /class/b321001/jasmin-2.4/jasmin.jar Hello77.j
Run it
java Hello77
Why Hello77? Most first programs are "Hello World". This one started like that, only the code seems more complex than a simple example should be. So this has a line to use an integer value of 77 instead.