小编Mat*_*hew的帖子

按下按钮时如何使用repaint()方法,Graphics p必须从头开始重新绘制所有内容？

谢谢.

  import javax.swing.Box;
  import javax.swing.JButton;
  import javax.swing.JTextField;
  import java.awt.*;
  import java.awt.event.*;
  import javax.swing.*;

  class fares extends JPanel{

    private static final long serialVersionUID = 1L;
    public static int xaxis1,xaxis2,yaxis3,yaxis4;

public ControlsB(square) {

    final JButton btn1 = new JButton("Resize");

    final Box b = Box.createHorizontalBox();
    b.add(new JLabel("Please enter range:  "));
    Box b0 = Box.createVerticalBox();//create a vertical box to stack the controls

    Box b1 = Box.createHorizontalBox(); // create a horizontal box for the x-axis

    //x-axis
    b1.add(new JLabel("mark "));
    b1.add(new JLabel("for"));

    f1.setMaximumSize(new Dimension(100,30)); …

我是JAVA的新手,我正在尝试将来自JTextField的输入转换为整数,我尝试了很多选项,但没有任何工作,eclipse总是给我一个错误,错误对我来说没有意义.

import java.awt.Graphics; import java.awt.Color;

public class circle extends Shape{

public int x;
public int y;
public int Radius;

public circle (int Radius, int x, int y, Color c){
    super(c);
    this.x = x;
    this.y = y;
    this.Radius = Radius;
}
    public void draw(Graphics g){
        g.setColor(super.getColor());
        g.fillOval(x-Radius, y-Radius, Radius * 2, Radius * 2);
    }
 }

我在 Laravel PHP 中有一封自动电子邮件，通知用户特定产品已过期。

我想包含一个应该嵌入到电子邮件本身中的 base64 图像。

是否可以使用 Laravel 在 Markdown 电子邮件中嵌入 Base64 图像？

如果是这样怎么办？

以下是电子邮件 Markdown 刀片模板：

@component('mail::message')
![Logo][logo]
[logo]: {{asset('frontend/img/core-img/logo-dark.png')}} "Logo"

**Product Expiry**

Dear {{$userName}},

This is to inform you that your product **{{$listingName}}**.

Your item was removed from the Market Place. Should you wish to re-list the item kindly do so from the app.

![alt]{{$listingImage}}

Should you require any information or need professional assistance kindly get in touch:

@component('mail::button', ['url' => ''])
    Contact Us
@endcomponent

Thanks,<br>
# …

我想知道用什么代码将double []数组转换为string []数组