IntelliJ IDEA中的某些javax.swing.Timer方法中的“无法解析符号”

时间:2016-03-17 17:29:07

标签: swing intellij-idea javax.swing.timer

我一直在寻找几个小时,似乎无法找到答案。

我导入javax.swing。*以便我可以在我的程序中使用Timer,但是当导入Timer并且似乎正在运行时,intellij无法解析Timer的其他方法,并且我得到以下错误: Errors picture enter image description here

这是我的代码:

`

import java.util.Random;
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.*;


public class Board
{
    Random rn = new Random();
    private SquareType[][] squares;
    private int height;
    private int width;
    public Poly falling;
    private int fallingX;
    private int fallingY;


    public Board(final int height, final int width) {
    this.width = width;
    this.height = height;

    squares = new SquareType[height][width];

    for (int i = 0; i < height; i++) {
        for (int j = 0; j < width; j++) {
        squares[i][j] = SquareType.EMPTY;
        }
    }

    }

    public int getHeight() {
    return height;
    }

    public int getWidth() {
    return width;
    }

    public SquareType whichSquareType(int height, int width) {
    //Takes in two integers one for height and one for width and returns
    // the SquareType of the particular cell
    return squares[height][width];

    }


    public void randomizeBoard() {

    SquareType[] myTypes = SquareType.values();

    for (int i = 0; i < height; i++) {
        for (int j = 0; j < width; j++) {
        squares[i][j] = myTypes[rn.nextInt(myTypes.length)];
        }
    }
    }

    public int getFallingX() {
    return fallingX;
    }

    public int getFallingY() {
        return fallingY;
    }

    public Poly getFalling() {
        return falling;
    }


    final Action doOneStep = new AbstractAction()
    {
    public void actionPerformed(ActionEvent e) {

    }
    };

    final Timer clockTimer = new Timer(500, doOneStep);
    clockTimer.setCoalesce(true);
    clockTimer.start();
}

`

1 个答案:

答案 0 :(得分:2)

请注意,您在Board类声明级别调用Timer类方法,而不是在Board类方法中调用。这些是非法的Java语句和错误消息的实际原因。您应该将这些调用封装在一个新的Board类方法中 - 例如initTimer() - 并在需要时调用此方法。

另一方面,clockTimer变量声明和初始化都可以。