将变量作为参数传递给哈希图的问题

Question

I'm having an issue with trying to pass a double constant as a parameter into a hashmap.

public static final double Apple_Initial_Value = 30.0;
private static HashMap<String, Double> base_values = new HashMap<String, Double>() {{

    put("Apple", Apple_Initial_Value);
}};
System.out.println(base_values.get("Apple"));

Results in the following output:

0.0

However,

public static final double Apple_Initial_Value = 30.0;
private static HashMap<String, Double> base_values = new HashMap<String, Double>() {{

    put("Apple", 30.0);
}};
System.out.println(base_values.get("Apple"));

Results in the following output:

30.0

Having just finished a course in C, my mind jumped to it being some sort of pass by reference vs. pass by value issue, but as I understand it, java is only pass by value, so I'm at a loss.

Cheers, and thanks in advance!

Edit: My apologies, it looks like the code I posted above is not actually indicative of what is exactly happening in my code (as it's actually working!). To be more specific, the situation is broken into two classes, IR.java, and Main.java. The relevant parts of IR.java look like this:

public class IR {

    public static final double Apple_Initial_Value = 30;
    public static HashMap<String, Double> base_values = new HashMap<String, Double>() {{

        put("Apple", Apple_Initial_Value);

    }};

    public static double get(String item) {
        double value = (double) base_values.get(item);
        return value;
    }
}

And the relevant parts of Main.java look like this:

public class Main {

    public static void main(String[] args) {

        System.out.println(IR.get("Apple"));
    }
}

Answer 1

The code above after the edit is completely valid, as I accidentally made it work by adding a typo that was not originally present in my source code when I posted the question (figure that). My source code declared Apple_Initial_Value as such:

public static Apple_Initial_Value = 50;

but the working code instead declares it as:

public static final Apple_Initial_Value = 50;

Sorry for leading you all on a wild goose chase, and thanks immensely for your time!

To make an example of myself, I advise any new posters to please read https://stackoverflow.com/help/mcve to learn how to make Minimal, Complete and Verifiable examples before posting questions that contain code.

Answer 2

You can try like this:

public static void main(String[] args) {
    final double Apple_Initial_Value = 30.0;
    HashMap<String, Double> base_values = new HashMap<String, Double>() {{

        put("Apple", Apple_Initial_Value);
    }};
    System.out.println(base_values.get("Apple"));

}

Update for your new code: The variable name is incorect. Just simple change it in the put statement:

put("Apple", Apple_Pie_Initial_Value);