components not intially displayed

Well who knows exactly what you are doing but here are some things to check:

a) don't override the paint() method of JFrame. It is responsible for painting all the child components

b) add all your components to the gui "before" invoking the frame.setVisible(...) method

If you need further help then you need to create a [url http://homepage1.nifty.com/algafield/sscce.html]Short, Self Contained, Compilable and Executable, Example Program[/url] (SSCCE) that demonstrates the incorrect behaviour, because I can't guess exactly what you are doing based on the information provided.

Don't forget to use the [url http://forum.java.sun.com/help.jspa?sec=formatting]Code Formatting Tags[/url] so the posted code retains its original formatting.

camickra at 2007-7-12 15:38:37 >

the program is on a JApplet because i need to draw several lines and grids, it also used Graphics2D which = (Graphics2D)g; Here is the init method and the paint method.

public void init()

{

setLayout(null);

Font myFont = new Font("Monospaced", Font.PLAIN, 11);

crashtab="\t";

a[0]=390;a[1]=510;

a[8]=390;a[9]=530;

x=0;wait=0;kx=0; ky=0;

makeBorder();

start = new Line2D.Double(390,490,390,550);

pass = new Line2D.Double(395,50,395,110);

move = new Button("Move");

rp = new Button("Repaint");

ymove = new TextField("",100);

xmove = new TextField("",100);

errormsgl = new Label("");

whoturn=new Label("Next move: Blue ");

rp.setBounds(0,0,50,25);

move.setBounds(140,250,200,50);

xmove.setBounds(140,300,100,20);

xmove.addActionListener(this);

ymove.setBounds(240,300,100,20);

ymove.addActionListener(this);

errormsgl.setBounds(140,225,300,25);

whoturn.setBounds(140,200,300,25);

add(move);

add(whoturn);

add(rp);

add(xmove);

add(ymove);

add(errormsgl);

xmove.requestFocus();

lom = new TextArea("List of Vectors\n\nBlue\t\tMagenta\n-\t\t-\n(0,0)\t\t(0,0)\n",0,0,1);

lom.setBounds(455,150,220,320);

lom.setEditable(false);

lom.setFont(myFont);

add(lom);

ins = new JTextArea("Please enter the x coordinate in the first box and the y coordinate in the second box.\nWhen entering in coordinates, note that positive means to the right and up while negative means down and to the left. After entering the coordinates, press \"Move\" or Enter.\n\nWhen you crash, the black dot is where you will begin on your turn.");

ins.setBounds(140,330,280,147);

ins.setLineWrap(true);

ins.setWrapStyleWord(true);

ins.setEditable(false);

add(ins);

move.addActionListener(this);

rp.addActionListener(this);

starter = true;

playgame=false;

crash=false;

apass=false;

bpass=false;

gameover=false;

}

public void paint(Graphics g)

{

g2 = (Graphics2D) g;

if(starter)

{

printMain();

starter = false;

}

else if(playgame)

{

g2.setStroke(new BasicStroke(3));

Line2D.Double move = new Line2D.Double(a[0+x], a[1+x], a[2+x], a[3+x]);

Point2D.Double cpt = didCrash(move);

if (cpt!=null)

{

if(crash) wait++;

crash=true;

appendLom();

double crashx = cpt.getX(), crashy = cpt.getY();

move.setLine(a[x], a[x+1], crashx, crashy);

Ellipse2D.Double boom = new Ellipse2D.Double(crashx-5,crashy-5,10,10);

a[2+x] = ((int)crashx/10)*10+kx;

a[3+x] = ((int)crashy/10)*10+ky;

g2.setColor(Color.red);

a[4+x]=0;a[5+x]=0;

g2.fill(boom);

errormsgl.setText("You crashed!");

g2.setColor(Color.black);

g2.fill(new Ellipse2D.Double(a[x+2]-3,a[x+3]-3,6,6));

kx=0;ky=0;

}

else appendLom();

if(x==0) g2.setColor(Color.blue);

else g2.setColor(Color.magenta);

g2.draw(move);

a[x] = a[2+x];

a[1+x] = a[3+x];

if(crash&&wait==1)

{

x=Math.abs(x-8);

crash=false;

appendLom();

wait=0;

}

if(crash) wait++;

x=Math.abs(x-8);

if(x==0) whoturn.setText("Next move: Blue");

else whoturn.setText("Next move: Magenta");

playgame=false;

}

}

basically the ins jtextarea does not display unless i hightlight the text, i also wanted to make lom a Jtextarea but had the same problems

Message was edited by:

tw11

tw11a at 2007-7-12 15:38:37 >

Here are two advices at first approach:

1. Never override the paint() method if possible. Use a JPanel with paintComponent() overridden instead, then add this JPanel to your JApplet.

2. You also may want to call super.paintComponent(g) from the overridden paintComponent() method to make sure the border and all necessary things are displayed correctly.

If this doesn't help, we shall see what else we can do.

(Related topic may be: http://forum.java.sun.com/thread.jspa?threadID=5171351)

sztyopeka at 2007-7-12 15:38:37 >