Java Swing Tutorial - Java DefaultListModel .copyInto (Object [] anArray)

Syntax

DefaultListModel.copyInto(Object [] anArray) has the following syntax.

public void copyInto(Object [] anArray)

Example

In the following code shows how to use DefaultListModel.copyInto(Object [] anArray) method.

//  w ww  . j a va  2  s .c  o  m

import java.awt.BorderLayout;

import javax.swing.DefaultListModel;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;

public class Main {

  public static void main(final String args[]) {
    String labels[] = { "A", "B", "C", "D", "E" };
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    DefaultListModel model = new DefaultListModel();
    model.ensureCapacity(1000);
    for (int i = 0; i < 100; i++) {
      for (int j = 0; j < 5; j++) {
        model.addElement(labels[j]);
      }
    }
    Object[] objs = new Object[10];
    
    model.copyInto(objs);
    
    JList jlist2 = new JList(model);
    jlist2.setVisibleRowCount(4);
    jlist2.setFixedCellHeight(12);
    jlist2.setFixedCellWidth(200);
    JScrollPane scrollPane2 = new JScrollPane(jlist2);
    frame.add(scrollPane2, BorderLayout.CENTER);

    frame.setSize(300, 350);
    frame.setVisible(true);
  }
}