//加个Container试试,或者是Frame之内的容器
import java.awt.*;
import javax.swing.*;public class AppTester extends JApplet {
public void init () {
Container c = getContentPane();
JButton jb = new JButton ("Default");
c.add (jb, BorderLayout.WEST);
jb = new JButton ("LayoutManager");
c.add (jb, BorderLayout.CENTER);
jb = new JButton ("is");
c.add (jb, BorderLayout.EAST);
jb = new JButton ("BorderLayout: " +
(c.getLayout() instanceof BorderLayout));
c.add (jb, BorderLayout.SOUTH);
}
}
import java.awt.*;
import javax.swing.*;public class AppTester extends JApplet {
public void init () {
Container c = getContentPane();
JButton jb = new JButton ("Default");
c.add (jb, BorderLayout.WEST);
jb = new JButton ("LayoutManager");
c.add (jb, BorderLayout.CENTER);
jb = new JButton ("is");
c.add (jb, BorderLayout.EAST);
jb = new JButton ("BorderLayout: " +
(c.getLayout() instanceof BorderLayout));
c.add (jb, BorderLayout.SOUTH);
}
}
解决方案 »
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