Question

I have this class in Java in which I declared a large number of variables (more than 50) as:

    public static final String variable_1 = "value";
    ....

I would like to access all these variables and put them in a list from within another class. Is there any way of doing that by using a for loop?

Answer 1

You can use reflection API, like this:

for (Field f : MyClass.class.getDeclaredFields()) {
    if (f.getName().startsWith("variable_")) {
        System.out.println("Field " + f.getName() + " with value " + f.get(null));
    }
}

As others said, though, this is pretty ugly and probably indicates some bad design decisions.