JList-选择多个项目
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当我想在
JList
JList
String[] items = { \"Item 1\", \"Item 2\", \"Item 3\", \"Item 4\" };
final JList theList = new JList(items);
theList.setSelectedValue(\"Item 1\",true);
theList.setSelectedValue(\"Item 2\",true);
Item 2
没有找到相关结果
已邀请:
4 个回复
视蕉梁拌客
后使用。 例如。import javax.swing.*; import java.io.*; import java.util.ArrayList; class MultiSelectList { public static void main(String[] args) throws Exception { File f = new File(\"MultiSelectList.java\"); InputStream is = new FileInputStream(f); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); final ArrayList<String> lines = new ArrayList<String>(); String line = br.readLine(); while (line!=null) { lines.add(line); line = br.readLine(); } SwingUtilities.invokeLater(new Runnable() { public void run() { JList list = new JList(lines.toArray()); list.setSelectionMode( ListSelectionModel.MULTIPLE_INTERVAL_SELECTION); int[] select = {19, 20, 22}; list.setSelectedIndices(select); JOptionPane.showMessageDialog(null, new JScrollPane(list)); } }); } }素汞读
或者如果选择不是连续的，那么您需要使用多个肉簧咸缮
，如下所示。肉脓措伪
import javax.swing.*; import java.io.*; import java.util.ArrayList; class MultiSelectList { public static void main(String[] args) throws Exception { File f = new File(\"MultiSelectList.java\"); InputStream is = new FileInputStream(f); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); final ArrayList<String> lines = new ArrayList<String>(); String line = br.readLine(); while (line!=null) { lines.add(line); line = br.readLine(); } SwingUtilities.invokeLater(new Runnable() { public void run() { JList list = new JList(lines.toArray()); list.setSelectionMode( ListSelectionModel.MULTIPLE_INTERVAL_SELECTION); int[] select = {19, 20, 22}; list.setSelectedIndices(select); JOptionPane.showMessageDialog(null, new JScrollPane(list)); } }); } }