Canvas' drawLine and drawRect not including end position?

Question

To my surprise I\'ve just discovered that drawLine and drawRect don\'t include the ending position, i.e.:

canvas.drawLine(100, 100, 100, 100, paint);

Answer 1

if your background is black ,add one statement paint.setColor(Color.RED); and also you had pass RectF rect = new RectF(100, 100, 100, 100); all points are same , try RectF rect = new RectF(100, 100, 200, 200);

OR for line canvas.drawLine(10, 10, 10, 10 + 15, paint);