Java JTabbedPane，如何从按钮中选择选项卡？
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Java JTabbedPane, how can I select a tab from a button?
提问by Relequestual
How can I select a tab as if it was clicked by clicking on a button? I have googled and looked at all the actions but there are just just so many... :(
如何选择一个选项卡，就像通过单击按钮单击它一样？我用谷歌搜索并查看了所有操作，但只有这么多...... :(
Anyone know off hand?
有人知道吗？
Thanks in advance!
提前致谢！
采纳答案by Yishai
Add an action listener to the button that calls setSelectedComponent, or setSelectedIndex on the JTabbedPane.
向调用 setSelectedComponent 或 JTabbedPane 上的 setSelectedIndex 的按钮添加一个动作侦听器。
回答by Michael Myers
I'm not sure what you mean about the button, but you might be looking for setSelectedComponentor setSelectedIndex.
我不确定您对按钮的意思，但您可能正在寻找setSelectedComponent或setSelectedIndex。
回答by Dimitrios K.
If your jtabbedpane's name is mytabbedpane it goes like this:
如果您的 jtabbedpane 的名称是 mytabbedpane，它会是这样的：
mytabbedpane.getSelectedIndex();
which returns the int of that tab (0,1 .. n) or
它返回该选项卡的 int (0,1 .. n) 或
mytabbedpane.getSelectedComponent();
which returns the String of the tab's name ("Firts tab","Second tab",...).
它返回选项卡名称的字符串（“第一个选项卡”，“第二个选项卡”，...）。
If you want to use the "getSelectedComponent()" for boolean logic you should write something like:
如果您想对布尔逻辑使用“getSelectedComponent()”，您应该编写如下内容：
if (mytabbedpane.getSelectedComponent().equals("First tab")) {
//code here
}
and for the "getSelectedIndex()" one is of course:
对于“getSelectedIndex()”来说，当然是：
if (mytabbedpane.getSelectedIndex() == 0) {
//code here
}
回答by Neo
Try this code:
试试这个代码：
tabbedPane.addTab(tabName, component);
int count = tabbedPane.getTabCount();
tabbedPane.setSelectedIndex(count-1);
回答by Khaliq Izrail Haxor
Double click on button, put the follwing code
双击按钮，输入以下代码
JTabbedPane.setSelectedIndex(1);
Tabs starts from 0 to N left to right order
制表符从 0 到 N 从左到右的顺序
