[英]how to call combobox selected item from another class in java?
final JComboBox departure = new JComboBox();
departure.setModel(new DefaultComboBoxModel(new String[] {"city1", "city2", "city3"}));
departure.setBounds(413, 11, 147, 20);
int selectedIndex1=departure.getSelectedIndex();
contentPane.add(departure);
I am coding a bus reservation system for my homework, I use JComboBox
to choose destination and departure city. 我正在为自己的作业编写公交预订系统,我使用
JComboBox
选择目的地和出发城市。 I want to call selected item from another class. 我想从另一个班级中调用选定的项目。 In this class the user will choose his seat.
在此类中,用户将选择他的座位。
How can I call selected item from another class? 如何呼叫另一个班级的所选项目? Please help me.. thanks.
请帮助我..谢谢。
You could make your JComboBox
a class member variable & add a method to return result of getSelectedItem
: 您可以将
JComboBox
设为类成员变量,并添加方法以返回getSelectedItem
结果:
public class MyGuiApp {
private JComboBox comboBox;
// constructor, init method, etc.
public String getSelectedItem() {
return (String)comboBox.getSelectedItem();
}
}
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