GridLayout class is a layout manager thatlays out a container’s components in a rectangular grid.
The container is divided into equal-sized rectangles,
and one component is placed in each rectangle.
For example, the following is an applet that lays out six buttons
into three rows and two columns:
Theclass is a layout manager that lays out a container’s components in a rectangular grid. The container is divided into equal-sized rectangles, and one component is placed in each rectangle. For example, the following is an applet that lays out six buttons into three rows and two columns:
import java.awt.*;
import java.applet.Applet;
public class ButtonGrid extends Applet {
public void init() {
setLayout(new GridLayout(3,2));
add(new Button("1"));
add(new Button("2"));
add(new Button("3"));
add(new Button("4"));
add(new Button("5"));
add(new Button("6"));
}
}
If the container’s ComponentOrientation property is horizontal
and left-to-right, the above example produces the output shown in Figure 1.
If the container’s ComponentOrientation property is horizontal
and right-to-left, the example produces the output shown in Figure 2.
Figure 1: Horizontal, Left-to-Right
Figure 2: Horizontal, Right-to-Left
When both the number of rows and the number of columns have
been set to non-zero values, either by a constructor or
by the setRows and setColumns methods, the number of
columns specified is ignored. Instead, the number of
columns is determined from the specified number of rows
and the total number of components in the layout. So, for
example, if three rows and two columns have been specified
and nine components are added to the layout, they will
be displayed as three rows of three columns. Specifying
the number of columns affects the layout only when the
number of rows is set to zero.
