Compile and run this java program

Question

How do I compile and run the following programs:

Test1.java:

package A;

public class Test1
{
    public int a = 1;
}

Test2.java:

Answer 1

You need to keep your java files in the correct directory structure:

A/Test1.java
B/Test2.java

It's usually sufficient to only invoke javac on your main class, as all dependencies will be handled automatically. After I say javac B/Test2.java, it looks like this:

A/Test1.class
A/Test1.java
B/Test2.class
B/Test2.java

And I can run the program with java B.Test2.

If it's not enough just to run javac on your main class, you'll probably need a build system.