jPanel怎么重写实现可以设置jPanel边框
jPanel怎么重写实现可以设置jPanel边框在csdn看到https://blog.csdn.net/quietbxj/article/details/109001811
import javax.swing.*;
import javax.swing.border.EtchedBorder;
import javax.swing.border.TitledBorder;
public class Panel1 {
public static void main(String[] args) {
//创建window容器
JFrame jf = new JFrame("测试JPanel");
//创建panel容器
JPanel jPanel = new JPanel();
//设置panel的边框和标题
jPanel.setBorder(new TitledBorder(new EtchedBorder(), "按钮设置"));
//panel组合组件
JButton btn1=new JButton("按钮1");
JButton btn2=new JButton("按钮2");
jPanel.add(btn1);
jPanel.add(btn2);
//window中添加panel
jf.add(jPanel);
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jf.pack();
jf.setVisible(true);
}
}
第13行的setBorder方法不存在，请问是不是他自己重写的？
有没有有写过这种的兄弟分享点经验？ 我这边运行一切正常,而且我还能查到它在JComponent.class中的定义
public void setBorder(Border border) {
Border oldBorder = this.border;
this.border = border;
firePropertyChange("border", oldBorder, border);
if (border != oldBorder) {
if (border == null || oldBorder == null ||
!(border.getBorderInsets(this).equals(oldBorder.getBorderInsets(this)))) {
revalidate();
}
repaint();
}
}
楼主如果不行的话试试重装JDK,看下行不行
运行没毛病：
什么APP？
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