相关疑难解决方法(0)

我需要在a中显示单个组件JPanel,并且我希望始终将该组件保留在右下角.我尝试用GridBagLayout做到这一点:

val infoArea = new TextArea {
  text = "Hello!"
  border = Swing.EmptyBorder(30)
  background = Color.RED
  editable = false
}
val p = new JPanel
p.setLayout(new GridBagLayout)
val c = new GridBagConstraints
c.gridx = 0
c.gridy = 0
c.anchor = GridBagConstraints.LAST_LINE_END
p.add(infoArea.peer,c)
val f = new JFrame
f.setContentPane(p)
f.setVisible(true)

但由于某种原因,文本区域处于中心位置:

我在这做错了什么？