将 JPanel 添加到 JFrame [英] Adding JPanel to JFrame
本文介绍了将 JPanel 添加到 JFrame的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有一个将 JPanel 添加到 JFrame 的程序:
I have a program in which a JPanel is added to a JFrame:
public class Test{
Test2 test = new Test2();
JFrame frame = new JFrame();
Test(){
...
frame.setLayout(new BorderLayout());
frame.add(test, BorderLayout.CENTER);
...
}
//main
...
}
public class Test2{
JPanel test2 = new JPanel();
Test2(){
...
}
}
我收到一条错误消息，要求我将面板"类型更改为组件".我要修复这个错误吗?它要我做:Component panel = new Component();
I get an error asking me to change type of 'panel' to 'component'. I do I fix this error? It wants me to do: Component panel = new Component();
推荐答案
public class Test{
Test2 test = new Test2();
JFrame frame = new JFrame();
Test(){
...
frame.setLayout(new BorderLayout());
frame.add(test, BorderLayout.CENTER);
...
}
//main
...
}
//public class Test2{
public class Test2 extends JPanel {
//JPanel test2 = new JPanel();
Test2(){
...
}
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