带有BorderLayout的JPanel，您将JTextField放入BorderLayout.CENTER并将JButton放入BorderLayout.EAST

A JPanel with BorderLayout where you put the JTextField in the BorderLayout.CENTER and the JButton in the BorderLayout.EAST should do it.

以及供以后参考:将布局管理器的可视指南添加为书签如果您正在寻找LayoutManager

And for future reference: bookmark the Visual guide to layout managers if you are looking for a LayoutManager