我正在尝试创建第一张图片中给出的GUI,但我无法做到。here is the image 我只得到一个combo1,combo2,combo3和serialNoLabel而不是5 [5是列表的大小]
ArrayList<String> list; // the size of the list is 5
JComboBox combo1[] = new JComboBox[list.size()];
JComboBox combo2[] = new JComboBox[list.size()];
JComboBox combo3[] = new JComboBox[list.size()];
JLabel SerialNoLabel[] = new JLabel[list.size()];
JPanel masterPanel[] = new JPanel[list.size()];
JDialog masterDialog = new JDialog();
masterDialog.setVisible(true);
masterDialog.setSize(800, 500);
masterDialog.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
masterDialog.setVisible(true);
for(int j =0; j < list.size(); j++) {
masterPanel[j] = new JPanel();
SerialNoLabel[j] = new JLabel(list.get(j));
masterPanel[j].add(SerialNoLabel[j]);
combo1[j] = new JComboBox();
masterPanel[j].add(combo1[j]);
combo2[j] = new JComboBox();
masterPanel[j].add(combo2[j]);
combo3[j] = new JComboBox();
masterPanel[j].add(combo3[j]);
masterDialog.add(masterPanel[j]);
masterDialog.revalidate();
}
答案 0 :(得分:3)
我认为这是一个布局问题,导致你的masterPanels彼此重叠。
所以我会做这样的事情:
JPanel mainPanel = new JPanel();
FlowLayout experimentLayout = new FlowLayout();
mainPanel.setLayout(experimentLayout);
for(int j =0; j < list.size(); j++) {
masterPanel[j] = new JPanel();
SerialNoLabel[j] = new JLabel(list.get(j));
masterPanel[j].add(SerialNoLabel[j]);
combo1[j] = new JComboBox();
masterPanel[j].add(combo1[j]);
combo2[j] = new JComboBox();
masterPanel[j].add(combo2[j]);
combo3[j] = new JComboBox();
mainPanel.add(masterPanel[j]);
}
当然你也可以使用其他布局。但我相信你想要FlowLayout
。请参阅有关FlowLayout
here。
您可以详细了解其他布局here