我是java的新学习者并获得了一项对我来说非常艰难的任务。在这个任务中，我必须使用JFrame和JLabel创建一个表。在JLabel中，我想使用HTML "<table></table>"创建此表。为此，我使用while循环输入带有值的各种<tr>和<td>，并将其插入JLabel。但是，我不知道如何做到这一点。
以下是我写的代码：
import javax.swing.*;
public class Multiplikationstabell {
public static void main(String[] args) {
// TODO code application logic here
Tabell t1 = new Tabell();
t1.elements();
}
}
class Tabell extends JFrame {
private JLabel label;
public Tabell() {
setTitle("Muliplikations tabell");
this.label = new JLabel(elements());
add(label);
setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);
}
public void elements() {
System.out.println("<html><body><table border = '1'>");
int rowNumber = 1;
while (rowNumber <= 10) {
int rowFields = 1;
int multiplier = 1;
int value = 1;
value = value * rowNumber;
System.out.println("<tr>");
while (rowFields <= 10) {
System.out.print("<td>" + value * multiplier + "</td>");
multiplier++;
rowFields++;
}
System.out.println("</tr>");
rowNumber++;
}
System.out.println("</table></body></html>");
}
}
答案 0 :(得分：-1)
我们需要使用HTML内容设置JLabel的文字。
import java.awt.FlowLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
public class Multiplikationstabell {
public static void main(String[] args) {
// TODO code application logic here
Tabell t1 = new Tabell();
String htmlConent = t1.elements();
t1.label.setText(htmlConent);
}
}
class Tabell extends JFrame {
public JLabel label;
public Tabell() {
setTitle("Muliplikations tabell");
this.label = new JLabel();
add(label);
setVisible(true);
setSize(400, 400);
// setLayout(new FlowLayout());
setDefaultCloseOperation(EXIT_ON_CLOSE);
}
public String elements() {
String htmlContent = "<html><body><table border = '1'>";
int rowNumber = 1;
while (rowNumber <= 10) {
int rowFields = 1;
int multiplier = 1;
int value = 1;
value = value * rowNumber;
htmlContent += "<tr>";
while (rowFields <= 10) {
htmlContent += "<td>" + value * multiplier + "</td>";
multiplier++;
rowFields++;
}
htmlContent += "</tr>";
rowNumber++;
}
htmlContent += "</table></body></html>";
return htmlContent;
}
}