JTable is display too small, after a pack() it's too height

Question

i have a table of 5 columns and 2 rows
it is placed on a scrollpane and then in an internal frame
the result is a table that is displayed too small (height=32 == getPreferredSize().height)
if i add a pack() statement then it is displayed too big, width is ok but height =~ 500 (should be approx. 100
what to do?

Answer 1

thank you! i like the one-liner!
however it works only the first time, not the second time when rows are added
DefaultTableModel model;
JTable table;
String[] columnNames;
Object[][] data;
columnNames = new String[5];
columnNames[0] = "N"; columnNames[1] = "T"; columnNames[2] = "E";
columnNames[3] = "E"; columnNames[4] = "P";
data = new Object[2][5];
data[0][0] = "e"; data[0][1] = "i"; data[0][2] = "e"; data[0][3] = "-"; data[0][4] = "2";
data[1][0] = "s"; data[1][1] = "f"; data[1][2] = "s"; data[1][3] = "2"; data[1][4] = "2";
model = new DefaultTableModel(data, columnNames);
table = new JTable(model);
table.setPreferredScrollableViewportSize(table.getPreferredSize());
// table is show with perfectheight of 2 rows
JScrollPane scrollPane = new JScrollPane(table);
internalFrame.add(scrollPane);
internalFrame.pack();
data = new Object[3][5];
data[0][0]="A0";data[0][1]="A1";data[0][2]="A2";data[0][3]="A3";data[0][4]="A4";
data[1][0]="b0";data[1][1]="b1";data[1][2]="b2";data[1][3]="b3";data[1][4]="b4";
data[2][0]="c0";data[2][1]="c1";data[2][2]="c2";data[2][3]="c3";data[2][4]="c4";
model = new DefaultTableModel(data,columnNames);
table.setModel(model);
table.setPreferredScrollableViewportSize(table.getPreferredSize());
// still a height of 2 rows instead of 3i have the feeling that i make it too complex :-(