添加选择JList组件到对象
问题描述:
我只是做了一个小程序,客户选择从JList中 和3种颜色一些我需要如何将这些颜色添加到客户对象添加选择JList组件到对象
我有构造这样
public Customer (String cc1, String cc2, String cc3){
this.colour1 = cc1;
this.colour2 = cc2;
this.colour3 = cc3;
而且简单的代码,我写了这是
public class Test2 extends JApplet {
Container container;
JButton b1;
JPanel panel;
JTextArea area;
String[] colours = {"Yellow", "Orange", "Red", "Purple",
"Blue", "Green", "Brown", "Black", "White"};
JList list, selectList;
String cc1, cc2, cc3; //Chosen colour
public void init() {
container = getContentPane();
panel = new JPanel(new FlowLayout());
area = new JTextArea();
b1 = new JButton("Submit");
list = new JList(colours);
selectList = new JList();
list.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
list.setVisibleRowCount(5);
panel.add(new JScrollPane(list));
panel.add(b1);
panel.add(new JScrollPane(selectList));
panel.add(area);
container.add(panel);
b1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
for(int i = 0; i < colours.length; i++) {
Object selected[] = list.getSelectedValues();
selectList.setListData(selected);
}
}
});
}
}
如何让这个人选择了这样一种颜色变为Customer对象 谢谢
答
如果Customer
已经存在,那么你就需要某种形式的二传手,否则只需要创建一个新的Customer
对象
你想从列表中取选定的值,并将它们添加到String
阵列,你可以控制的,但你只想加起来最多3项
b1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
Object[] values = list.getSelectedValues();
String[] colors = new String[3];
for (int index = 0; index < Math.min(3, values.length); index++) {
colors[index] = values[index].toString();
}
Customer customer = new Customer(colors[0], colors[1], colors[2]);
}
});
还是什么simular
我打算为循环创建新的客户对象。 – 2015-03-24 23:18:34
什么循环?对于每个选定的项目?每个客户都得到相同的颜色吗? – MadProgrammer 2015-03-24 23:19:39
“For loop”抱歉... – 2015-03-24 23:20:44