We would like to know how to set JList orientation.
import java.awt.Dimension; //from ww w .jav a 2 s. c om import javax.swing.JFrame; import javax.swing.JList; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.ListSelectionModel; public class Main { public static void main(String[] args) { JPanel panel = new JPanel(); panel.setPreferredSize(new Dimension(800, 600)); String test[] = { "alpha", "bravo", "charlie", "delta", "echo", "omega", "zeta" }; JList<String> list = new JList<>(test); list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); list.setLayoutOrientation(JList.VERTICAL); list.setVisibleRowCount(5); list.setBounds(50, 150, 75, 90); JScrollPane jScrollPane1 = new JScrollPane(); jScrollPane1.setViewportView(list); panel.add(jScrollPane1); JFrame f = new JFrame(); f.add(panel); f.pack(); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setResizable(false); f.setFocusable(true); } }