java创建动态表以使用按钮添加新条目
我正在尝试构建一个寄存器,这样当单击一个按钮时,一个新条目就会出现在表上。理想情况下,我希望在屏幕的左侧构建一个表,单击按钮时会显示两行和新列。我希望表有一个固定的大小,但它应该是滚动后,一定数量的条目。到目前为止,我已经创建并格式化了JButton
对象,我希望单击这些对象以显示新条目。我也知道我应该用JTable
来实现这一点
我应该如何制作这个动态表格
迄今为止的代码:
private void addRegister(JPanel pane) {
JPanel everythingPane = new JPanel();
JPanel pluPane = new JPanel();
Dimension button = new Dimension(200,150);
JTable pluTable = new JTable();
JPanel buttonPane = new JPanel();
buttonPane.setLayout(new BoxLayout(buttonPane, BoxLayout.Y_AXIS));
//JPanel buttonPane = new JPanel (new FlowLayout (FlowLayout.LEFT));
JPanel subPane1 = new JPanel();
subPane1.setAlignmentX(LEFT_ALIGNMENT);
JPanel subPane2 = new JPanel();
subPane2.setAlignmentX(LEFT_ALIGNMENT);
JPanel subPane3 = new JPanel();
subPane3.setAlignmentX(LEFT_ALIGNMENT);
JPanel subPane4 = new JPanel();
subPane4.setAlignmentX(LEFT_ALIGNMENT);
JPanel subPane5 = new JPanel();
subPane5.setAlignmentX(LEFT_ALIGNMENT);
JPanel alignmentLayer = new JPanel();
JButton frappuccino = new JButton("Frappuccino");
JButton icedCoffee = new JButton("Iced Coffee");
frappuccino.setPreferredSize(button);
icedCoffee.setPreferredSize(button);
JButton arizona = new JButton("Arizona Green Tea");
JButton izze = new JButton("Izze");
arizona.setPreferredSize(button);
izze.setPreferredSize(button);
JButton snapple = new JButton("Snapple");
JButton gatorade = new JButton("Gatorade");
snapple.setPreferredSize(button);
gatorade.setPreferredSize(button);
JButton water = new JButton("Water");
JButton appleJuice = new JButton("Apple Juice");
water.setPreferredSize(button);
appleJuice.setPreferredSize(button);
JButton orangeJuice = new JButton("Orange Juice");
JButton mentos = new JButton("Mentos");
orangeJuice.setPreferredSize(button);
mentos.setPreferredSize(button);
JButton gum = new JButton("Gum");
JButton cliffBar = new JButton("Cliff Bar");
gum.setPreferredSize(button);
cliffBar.setPreferredSize(button);
JButton littleBites = new JButton("Little Bites");
JButton welchs = new JButton("Welch's Fruit Snacks");
littleBites.setPreferredSize(button);
welchs.setPreferredSize(button);
JButton fiberOneBar = new JButton("Fiber One Bar");
JButton fiberOneBrownie = new JButton("Fiber One Brownie");
fiberOneBar.setPreferredSize(button);
fiberOneBrownie.setPreferredSize(button);
JButton cheezeIts = new JButton("Cheeze Its");
JButton goldFish = new JButton("Gold Fish");
cheezeIts.setPreferredSize(button);
goldFish.setPreferredSize(button);
JButton teaBag = new JButton("Tea Bag");
JButton poptarts = new JButton("Poptarts");
teaBag.setPreferredSize(button);
poptarts.setPreferredSize(button);
JButton sampleButton = new JButton("Sample Button");
JButton sampleButton2 = new JButton("Sample Button");
sampleButton.setPreferredSize(button);
sampleButton2.setPreferredSize(button);
JButton sampleButton3 = new JButton("Sample Button");
JButton sampleButton4 = new JButton("Sample Button");
sampleButton3.setPreferredSize(button);
sampleButton4.setPreferredSize(button);
subPane1.add(frappuccino);
subPane1.add(icedCoffee);
subPane1.add(arizona);
subPane1.add(izze);
subPane2.add(snapple);
subPane2.add(gatorade);
subPane2.add(water);
subPane2.add(appleJuice);
subPane3.add(orangeJuice);
subPane3.add(mentos);
subPane3.add(gum);
subPane3.add(cliffBar);
subPane4.add(littleBites);
subPane4.add(welchs);
subPane4.add(fiberOneBar);
subPane4.add(fiberOneBrownie);
subPane5.add(cheezeIts);
subPane5.add(goldFish);
subPane5.add(teaBag);
subPane5.add(poptarts);
alignmentLayer.add(sampleButton);
alignmentLayer.add(sampleButton2);
alignmentLayer.add(sampleButton3);
alignmentLayer.add(sampleButton4);
buttonPane.add(subPane1);
buttonPane.add(subPane2);
buttonPane.add(subPane3);
buttonPane.add(subPane4);
buttonPane.add(subPane5);
buttonPane.add(Box.createRigidArea(new Dimension(5,100)));
buttonPane.add(alignmentLayer);
pluPane.add(pluTable);
everythingPane.add(pluPane);
everythingPane.add(buttonPane);
pane.add(everythingPane);
}
# 1 楼答案
JTable
更常用于添加行,而不是列。我重新考虑了这个example来说明下面的基本思想。每次单击按钮时,都会向表的模型中添加一个新行,从而更新表本身