JTable table = new JTable(data, columnNames);
     JScrollPane scrollPane = new JScrollPane(table);
     scrollPane.setPreferredSize(new Dimension(200, 0));
     add(scrollPane);

 private JTable[] table;

..........................

for (int i = 0; i < 10; i++) 
    { table[i] = new JTable(data, columnNames);}

 private JTable table;

..........................

table = new JTable(data, columnNames);}

 private JTable[] table=new JTable[100];

JTable table = new JTable(data, columnNames);
     JScrollPane scrollPane = new JScrollPane(table);
     add(scrollPane);