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Alexon Classic's questions

Martin Hope
Alexon Classic
Asked: 2020-12-02 01:15:03 +0800 CST
  • 0

大家好！

我有一个文件：

templates/my_template/html/layouts/joomla/content/intro_image.php

我需要在其中插入一个代码，该代码将显示包含在网站上显示其介绍图像的材料的类别名称+添加该材料的发布日期...

我不明白如何做到这一点......我尝试了不同的方式：

$this->category->text

$this->category->title

以及一堆其他代码，例如：

$title = $this->escape($displayData['item']->category_title);

没有任何作用...

有人可以建议如何做到这一点吗？

提前感谢您的回复！

joomla
Martin Hope
Alexon Classic
Asked: 2020-10-21 00:30:03 +0800 CST
  • 2

points[0] = pointFiller(scanner);当我运行该程序时，我在Can't figure out why...中收到 OutOfBoundsException

预先感谢您的回复

public class Point {
    private int lineCount;
    private final int x;
    private final int y;

    public Point(int x, int y) {
        this.x = x;
        this.y = y;
    }

    public int getX() {
        return x;
    }

    public int getY() {
        return y;
    }

    Point[] points = new Point[lineCount];

    public void pointsCreator() {
        Scanner scanner = new Scanner(System.in);
        lineCount = scanner.nextInt();

        System.out.println("----------------------");
        System.out.println("enter points for first line: ");
        points[0] = pointFiller(scanner);

        for (int i = 1; i < lineCount; i++){
            System.out.println("----------------------");
            System.out.println("enter points for next line:");
            points[i] = pointFiller(scanner);
        }

        System.out.println("----------------------");
        System.out.println(Arrays.toString(points));
    }

    public static Point pointFiller(Scanner scanner) {
        System.out.print("     - enter x: ");
        int x = scanner.nextInt();

        System.out.print("     - enter y: ");
        int y = scanner.nextInt();

        return new Point(x, y);
    }

    @Override
    public String toString() {
        return "Points for line {x = " + x + ", y = " + y + '}';
    }
}
java
Martin Hope
Alexon Classic
Asked: 2020-10-12 21:00:07 +0800 CST
  • 2

为什么我在循环中既不是in也不是in输入的数据没有pointerFiller被Scanner写入points[0] = new Point(x, y);。points[i] = new Point(x, y);

public class Point {
    private int lineCount;
    private final int x;
    private final int y;

    public Point(int x, int y) {
        this.x = x;
        this.y = y;
    }

    public void pointsCreator() {
        Scanner scanner = new Scanner(System.in);
        lineCount = scanner.nextInt();

        Point[] points = new Point[lineCount];

        System.out.println("----------------------");
        System.out.println("enter points for first line: ");
        pointerFiller(scanner);

        points[0] = new Point(x, y);

        for (int i = 1; i < lineCount; i++){
            System.out.println("----------------------");
            System.out.println("enter points for next line:");
            pointerFiller(scanner);

            points[i] = new Point(x, y);
        }

        System.out.println("----------------------");
        System.out.println(Arrays.toString(points));
    }

    public static Point pointerFiller(Scanner scanner) {
        System.out.print("     - enter x: ");
        int x = scanner.nextInt();

        System.out.print("     - enter y: ");
        int y = scanner.nextInt();

        return new Point(x, y);
    }

    @Override
    public String toString() {
        return "Points for line {x = " + x + ", y = " + y + '}';
    }
}
java