If we have two objects of
Vector2 corner1 = new Vector2(-5, -5);
Vector2 corner2 = new Vector2(5, 5);
Here is some example code I'll explain what it does. First you need to find distance between x1 and x2 and distance between y1 and y2 get a random value between the total distance then subtract half of that distance so if we had total distance 10 we would get a random number (0 - 10) subtract 5 and we get the range -5 to 5.
int x1 = 5; int x2 = -5; int y1 = 5; int y2 = -5; Random rand = new Random(); int distanceX = Math.abs(x1 - x2); int distanceY = Math.abs(y1 - y2); int randX = rand.nextInt(distanceX) - (distanceX/2); int randY = rand.nextInt(distanceY) - (distanceY/2); System.out.println(randX + " " + randY);
You would just need to use the Vector 2 so
distanceX = Math.abs(corner1.x - corner2.x);
etc... you might need to change ints to floats depending on what Vector2 contains.
float randX = ((rand.nextFloat()*distanceX) - (distanceX/2));