关于JFrame的问题

[DUCI_TTO]

怎么设置我JFrmae在屏幕上显示的位置，我的本意是要程序启动以后弹出的JFream显示在屏蔽的中央，但是它却显示在屏幕的左上角,我应该怎么设置,谢谢

[Paripatetic]

setBounds(x1,y1,x2,y2);
前两个参数是位置
后两个是窗口大小

[believefym]

/**
* centerlize the component,that is locate the component in the
* center of the screen
* @param c the component to be centerlized
*/
public static void center(Component c) {
center(c, c.getSize());
}


/**
* centerlize the component,whose size is dimension me
* @param c the component to centerlized
* @param me dimension the component to be shown
*/
public static void center(Component c, Dimension me) {
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
c.setLocation(screenSize.width / 2 - me.width / 2, screenSize.height
/ 2 - me.height / 2);
}


/**
* make the component be in center of the parent component,
* if the component exceeds the borders of the screen,then
* make it in the screen
* @param parent the parent component
* @param me the component to be centerlized
*/
public static void center(Component parent,Component me){
Point p = parent.getLocation();
Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
Dimension psize = parent.getSize();
Dimension msize = me.getSize();
Point m = new Point((int)(p.getX()+(psize.width-msize.width)/2),
(int)(p.getY()+(psize.height-msize.height)/2));
if(m.x+msize.width > screen.width ){
m.x = screen.width-msize.width;
}

else if(m.x<0){
m.x=0;
}
if(m.y+msize.height > screen.height){
m.y = screen.height - msize.height;
}
else if(m.y<0){
m.y = 0;
}
me.setLocation(m.x,m.y);
}