Things to know about JTable

You might already be using JTables comes with Swing in Java but sometimes may not know theses facts, Here's an some facts about JTables.

• JTable does not contain or cache data; it is simply a view of your data.
• There are two JTable constructors that directly accept data (SimpleTableDemo uses the first):
• JTable(Object[][] rowData, Object[] columnNames)
• JTable(Vector rowData, Vector columnNames)
• However, these constructors also have disadvantages: 
• They automatically make every cell editable.
• They treat all data types the same (as strings).
• They require that you put all of the table's data in an array or vector, which may not be appropriate for some data. 
• When adding a JTable use a JScrollpane

• JScrollPane scrollPane = new JScrollPane(table);
  table.setFillsViewportHeight(true);

• JTable uses a very simple concept of selection, managed as an intersection of rows and columns. It was not designed to handle fully independent cell selections.