java - 添加java对象两次

Question

所以我对 Java 比较陌生，并且一直在使用 Eclipse。主要部分是最后三行，我想让对象 myBrick 出现多次。如果我运行它，它只会出现在第二个位置(最后一行)。可能吗？

import acm.graphics.*;
import acm.program.*;
import java.awt.*;

public class Pyramid extends GraphicsProgram {

    /** Width of each brick in pixels */
    private static final int BRICK_WIDTH = 30;

    /** Height of each brick in pixels */
    private static final int BRICK_HEIGHT = 12;

    /** Number of bricks in the base of the pyramid */
    private static final int BRICKS_IN_BASE = 14;

    public void run() {
        double windowWidth = 756;
        double windowHeight = 494;
        int numberOfBricks = (BRICKS_IN_BASE*(BRICKS_IN_BASE+1))/2;

        double emptySpace = windowWidth - (BRICK_WIDTH*BRICKS_IN_BASE);
        int cushion = (int)emptySpace/2;

        GRect myBrick = new GRect(BRICK_WIDTH, BRICK_HEIGHT);
        add(myBrick, cushion, (windowHeight-BRICK_HEIGHT));
        add(myBrick, (cushion+BRICK_WIDTH), (windowHeight-BRICK_HEIGHT));
    }
}

Answer 1

我认为问题可能是当您使用第二个 add() 方法时，它使用相同的 myBrick 对象而不是创建第二个对象。尝试为第二个 add() 函数创建一个新的 GRect 对象。