how to populate a jtable from arraylist
import java.awt.BorderLayout;
import java.util.ArrayList;
//from ww w . java 2 s. co m
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
public class Main extends JFrame {
JTable table = new JTable();
DefaultTableModel model = new DefaultTableModel();
JScrollPane scroll;
String headers[] = { "col1", "col2" };
String[] data = { "AA", "BB", "CC", "DD", "EE", "FF", "GG", "HH", "II", "JJ",
"KK", "LL", "MM", "NN", "OO", "PP", "QQ", "RR" };
public Main() {
model.setColumnIdentifiers(headers);
table.setModel(model);
scroll = new JScrollPane(table);
insert();
add(scroll, BorderLayout.CENTER);
setSize(300, 300);
setVisible(true);
}
public void insert() {
ArrayList<String> ar = new ArrayList<String>();
for (int i = 0; i < data.length; i++) {
ar.add(data[i]);
}
for (int i = 0; i < (ar.size() / 2); i++) {
model.addRow(new Object[] { String.valueOf(ar.get(2 * i)),
String.valueOf(ar.get((2 * i) + 1)) });
}
}
public static void main(String[] args) {
new Main();
}
}