Java：从先前在另一个类中选择的文件中读取文本

Question

Using JavaFX, I have the user input information into text fields. My MainController class allows the user to save that inputted text to a txt file and save it at a given location.

Im wondering if its possible to pass what was entered in that text file into another class so I can parse and have my program use its data.

I used strings and .getText() then used a filewriter and bufferedWriter. Can I get the .getText input into another class?

Answer 1

如果您的课程比是公开的，则可以在应用程序的任何课程中使用它；

Answer 2

You should research for Java - Access Modifiers

but as an ideia,

public class MainController {

    private String savedFilePath;

    public String getSavedFilePath() {
        return savedFilePath;
    }

    public void setSavedFilePath(String savedFilePath) {
        this.savedFilePath = savedFilePath;
    }
}

and from the other class, when you save the file you can call:

MainController controller = new MainController();
controller.setSavedFilePath("file path");

If you don't want to create a new object MainController, you can define the savedFilePath as static

public class MainController {

    private static String savedFilePath;

    public static void setSavedFilePath(String paramSavedFilePath) {
        savedFilePath = paramSavedFilePath;
    }
}

and just call:

MainController.setSavedFilePath("file path");