Answer:
Welcome.class
Step-by-step explanation:
Since this code is contained in a file named Welcome.java. The result of the compilation process is a file of byte code with the same name but with the .class extension. The bytecode (.class file) holds the instructions that the Java Virtual Machine (JVM) knows how to execute.
The summary of compilling and executing a simple program like this is:
javac Welcome.java //compiles the code resulting in the bytecode .class
java Welcome //Executes the instructions in the code