Java Utililty Methods Screen Center

List of utility methods to do Screen Center

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Description

The list of methods to do Screen Center are organized into topic(s).

Method

PointgetCenterLocation(final Window frame)
get Center Location 
int x = (int) (Math.rint(Toolkit.getDefaultToolkit().getScreenSize().getWidth() - frame.getWidth()) / 2);
int y = (int) (Math.rint(Toolkit.getDefaultToolkit().getScreenSize().getHeight() - frame.getHeight()) / 2);
return new Point(x, y);
PointgetCenterLocation(Window window)
get Center Location 
Dimension componentSize = window.getSize();
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Point pos = new Point();
pos.x = ((screenSize.width / 2) - (componentSize.width / 2));
pos.y = ((screenSize.height / 2) - (componentSize.height / 2)) - 30;
return pos;
int[]getCenterLocationAWT(final java.awt.Component comp, final boolean onTitleBarIfWindow)
get Center Location AWT 
int x0, y0;
final java.awt.Point p0 = comp.getLocationOnScreen();
final java.awt.Rectangle r0 = comp.getBounds();
if (onTitleBarIfWindow && comp instanceof java.awt.Window) {
    final java.awt.Window window = (java.awt.Window) comp;
    final java.awt.Insets insets = window.getInsets();
    y0 = (int) (p0.getY() + insets.top / 2.0 + .5);
} else {
...
PointgetCenterPoint()
get Center Point 
Toolkit toolkit = Toolkit.getDefaultToolkit();
double desktopHeight = toolkit.getScreenSize().getHeight();
double desktopWidth = toolkit.getScreenSize().getWidth();
return new Point((int) desktopWidth / 2, (int) desktopHeight / 2);
PointgetCenterPoint(Component parent, Component comp)
get Center Point 
Dimension cSize = comp.getSize();
Dimension pSize = parent.getSize();
Point loc = parent.getLocationOnScreen();
loc.x = ((pSize.width - cSize.width) / 2) + loc.x;
loc.y = ((pSize.height - cSize.height) / 2) + loc.y;
if (loc.x < 0) {
    loc.x = 0;
if (loc.y < 0) {
    loc.y = 0;
return loc;
PointgetCenterPoint(final int w, final int h)
get Center Point 
Toolkit tk = Toolkit.getDefaultToolkit();
Dimension d = tk.getScreenSize();
final int x = (int) (d.getWidth() / 2) - (w / 2);
final int y = (int) (d.getHeight() / 2) - (h / 2);
return new Point(x, y);
PointgetCenterPointRelativeToScreen(Dimension size)
Gives the center point relative to the user's screen, given the size of some component. 
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
return new Point((screenSize.width - size.width) / 2, (screenSize.height - size.height) / 2);
PointgetCenterPosition(Dimension d)
Calculates x,y to center window of given dimension on the desktop 
Point retval = new Point(0, 0);
try {
    Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
    int x = (screen.width / 2) - (d.width / 2);
    int y = (screen.height / 2) - (d.height / 2);
    retval = new Point(x, y);
} catch (Exception e) {
    retval = new Point(0, 0);
...
PointgetCenterPositionForComponent(int width, int heigth)
get Center Position For Component 
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
int positionX = screenSize.width - (screenSize.width / 2) - (width / 2);
int positionY = screenSize.height - (screenSize.height / 2) - (heigth / 2);
return new Point(positionX, positionY);
DimensiongetDimensionFromPercent(int percentWidth, int percentHeight)
Return a Dimension whose size is defined not in terms of pixels, but in terms of a given percent of the screen's width and height. 
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
return calcDimensionFromPercent(screenSize, percentWidth, percentHeight);