The list of methods to do JComponent Height are organized into topic(s).
void
adjustHeight(JComponent comp, int height) adjust Height
Dimension size = comp.getMinimumSize();
size.height = height;
comp.setMinimumSize(size);
size = comp.getPreferredSize();
size.height = height;
comp.setPreferredSize(size);
void
fixHeight(JComponent c, int height) fix Height
Dimension ps = c.getPreferredSize();
c.setPreferredSize(new Dimension(ps.width, height));
c.setMinimumSize(c.getPreferredSize());
c.setMaximumSize(c.getPreferredSize());
void
normalizeHeight(JComponent... components) Sets all specified components to the same height.
int height = 0;
for (JComponent component : components) {
if (component.getPreferredSize().height > height) {
height = component.getPreferredSize().height;
setPreferredHeight(height, components);