液體佈局..使按鈕浮動右邊

Question

使用此代碼按鈕左對齊，但膠水不擴展..我想讓按鈕2和3向右浮動。

frame = new JFrame(); 
frame.setBounds(100, 100, 450, 300); 
JPanel panelBottom = new JPanel(); 
frame.getContentPane().add(panelBottom, BorderLayout.SOUTH); 
panelBottom.setLayout(new FlowLayout(FlowLayout.LEFT)); 

JButton btnNewButton = new JButton("1"); 
panelBottom.add(btnNewButton); 

Component glue = Box.createGlue(); 
panelBottom.add(glue); 

JButton btnNewButton_1 = new JButton("2"); 
panelBottom.add(btnNewButton_1); 

JButton btnNewButton_2 = new JButton("3"); 
panelBottom.add(btnNewButton_2); 

Answer 1

爲了使用glue，您需要使用BoxLayout。