Question

我目前有一个3类java应用程序，我正在尝试使用JavaFX创建一个简单的游戏。在我的GameCore类中，我正在尝试创建gameGrid的一个实例。但是当我使用“grid = new gameGrid（int，int，int，int）;”时eclipse告诉我gameGrid是未定义的并建议我创建方法，当我做eclipse请求时，它在我的gameCore类中放置一个私有方法gameGrid，但gameGrid应该是gameGrid.class的构造函数。我已经重新启动了项目并清理了项目无济于事。

public class gameCore {

    gameGrid grid;

    public gameCore(){
        getGrid();
    }

    public void getGrid(){
        grid = gameGrid(32, 32, 10, 10); //Error is here, underlining "gameGrid"
//Also using gameGrid.gameGrid(32,32,10,10); does not work either, still says its undefined

/*
This is the code that Eclipse wants to place when I let it fix the error, and it places this code in this class.
private gameGrid gameGrid(int i, int j, int k, int l) {
        // TODO Auto-generated method stub
        return null;
    }
*/

    }

}

public class gameGrid {

    protected int[][] grid;
    protected int tileWidth;
    protected int tileHeight;

    public gameGrid(int tileWidth, int tileHeight, int horizTileCount, int vertTileCount){
        //Create Grid Object

        grid = new int[vertTileCount][];
        for(int y = 0; y < vertTileCount; y++){
            for(int x = 0; x < horizTileCount; x++){
                grid[y] = new int[horizTileCount];
            }
        }

        this.tileWidth = tileWidth;
        this.tileHeight = tileHeight;
    }
}

import java.awt.Dimension;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class gameGUI extends Application {

    Dimension screenDimensions = new Dimension(java.awt.Toolkit.getDefaultToolkit().getScreenSize());

    public static void main(String[] args){
        launch(args);
    }

    public void start(Stage stage) throws Exception {
        Canvas c = new Canvas();
        StackPane sp = new StackPane();
        Scene scene = new Scene(sp, screenDimensions.width, screenDimensions.height);

        sp.getChildren().add(c);
        stage.setScene(scene);

        gameCore game = new gameCore();



        stage.show();


    }

}

Answer 1

你缺少的是＆＃34;新的＆＃34;为了实例化，我即你需要写

grid = new gameGrid(32, 32, 10, 10);

在Java类中，以大写字符开头，你应该read the guidelines。

如果您希望在JavaFX中使用Java节点而不是画布来查看网格，您可以查看我最近问过的问题的the code。

Java - Eclipse中未定义的方法

1 个答案: