Java Swing JTable Demo

A short tutorial on how to create a JTable with a JScrollpane and populate it with data from a file or database.

[@magnadux8123]

Thank You :)

[@alleyb62]

My pleasure

[@gessocode]

❤❤❤❤❤❤❤❤❤❤❤

[@andreirizea5407]

I’ve done exactly the same as you but my table will not want to render onto the screen. Any ideas why.l? It is added to the correct panel

[@alleyb62]

The most common problem is the layout. You may try setting your layout to null, or using a different type of layout.

[@andreirizea5407]

@@alleyb62Layout is already set to null :(

[@kevinhart437]

@@alleyb62 is the problem still there? maybe i could help you, but need to see the code, is it
same as the video?

[@kevinhart437]

package App.Anmeldung;
import javax.swing.*;
import javax.swing.filechooser.FileSystemView;
import java.awt.*;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
public class AnmeldungsFenster {
JFrame frame;
JPanel panel;
JScrollPane scrollPane;
JTable table;
String[] spalten;
Object[][] data;
public AnmeldungsFenster() {
frame = new JFrame();
panel = new JPanel();
spalten = new String[]{"Interne Bezeichnung", "elektr. Bezeichnung", "Zulassung", "Artikelnummer EK", "Artikelnummer VK", "Warencode", "Verkaufart", "Packungsgrößen", "EU-NUmmer", "Packmittel Bez.", "elektr. Packmittel Bez.", "Zielland", "PPN/PZN", "Dormant", "GTIN", "Packmittel", "Material Bez."};
data = getData();
table = new JTable(data, spalten);
scrollPane = new JScrollPane(table);
panel.setLayout(new BorderLayout());
panel.add(scrollPane, BorderLayout.CENTER);
frame.add(panel);
frame.setSize(1290, 860);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
Object[][] getData() {
String path = FileSystemView.getFileSystemView().getDefaultDirectory().getPath();
try {
BufferedReader br = new BufferedReader(new FileReader(path + "/Mappe1.csv")); //change to you name the expetion that will come maybe show your whole data path mine is : C:\Users\instadmin\OneDrive\Dokumente + "\YOURFILE"
ArrayList list = new ArrayList();
String str = "";
while ((str = br.readLine()) != null) {
String[] rowData = str.split(",");
list.add(rowData);
System.out.println(str);
}
int n = spalten.length;
Object[][] data = new Object[list.size()][n];
for (int i = 0; i < list.size(); i++) {
String[] rowData = list.get(i);
if (rowData.length != n) {
rowData = new String[n];
}
data[i] = rowData;
}
br.close();
return data;
} catch (FileNotFoundException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public static void main(String[] args) {
SwingUtilities.invokeLater(() -> new AnmeldungsFenster());
}
}

[@malshisathsarani5196]

true
:(