[java] window scaling

public void paintComponent(Graphics g) {  Graphics2D g2 = (Graphics2D)g;  //if you want your drawing at normal size to be 200 x 200  g2.scale(getWidth() / 200, getHeight() / 200);  //you have to watch the aspect ratio with this  //unless you constrain your JPanel to a square, this can look stretched  //drawing code goes here    .    .    .}

public void paintComponent(Graphics g) {  Graphics2D g2 = (Graphics2D)g;  //if you want your drawing at normal size to be 200 x 200  double scale1 = getWidth() / 200;  double scale2 = getHeight() / 200;  //this one will scale within the bounds of the JPanel, but  //will only fill it in one direction  double scale = (scale1 > scale2) ? scale2 : scale1;  //this one will fill the bounds of the JPanel in one direction, but  //will draw off the other edge  double scale = (scale1 > scale2) ? scale1 : scale2;  g2.scale(scale, scale);  //you have to watch the aspect ratio with this  //unless you constrain your JPanel to a square, this can look stretched  //drawing code goes here    .    .    .}