Design pattern Assignment Example | Topics and Well Written Essays - 1500 words

Design pattern - Assignment Example These receiver commands are string in nature. In this algorithm, all the commands that will be visible to the user are subclasses to the moveable command abstract class. The three objects which are moveable which include the rook, bishop and the knight are able to be moved to and from the different positions on the board. The codes for each segment of the class are given in the chart above. This design pattern models a one to many dependency between the objects in the algorithm. This design pattern is creational in nature and connects the state of an observed object the subject with many observing objects and the observers. The square view model is related to the composite class in the algorithm which in turn is related to the color background and the square state of game. The square view model object is able to position the board which is ten passed to the composite class which sets the required state of the square. The color background class sets the background color of the object and finally the square state model of the class is changed as set by the user. The main use for this approach in programming is to ensure that we maintain consistency across the states that appear to be redundant in the code and also optimize the changes so that the consistency necessary is maintained. In this approach to in pattern design, the consistency is maintained using three main var iants: The square view model object acts as the publishing notification which then subscribes to both the color background and the composite objects which then push the notification to the subscribing notification for updating. If we take into consideration a user interface toolkit that is capable of supporting multiple number of applications and controls, the game view object sets up a game on the user interface which then clears the board to create a new game. The new game has two main components sub objects which include the controllers for the object and the

Static Equilibrium Lab Report Example | Topics and Well Written Essays - 1250 words

Static Equilibrium - Lab Report Example From Newtons 1st law, an object is in equilibrium when it moves at constant velocity (Mathew, 2010, pp5). Static equilibrium is thus a system at rest is said to be in static equilibrium. The summation of equilibrium forces in each direction adds to zero. Also, the total net summation of torque is equates to zero. (Mathew, 2004, p.3).Ã" Fx=0, Ã" Fy=0, Ã" Fz=0, Ã" Ã"Ž=0,Fx becomes the force that occur in the X direction and Fy are the forces that occur in the Y component direction (Mathew,2010.pp.7). Fz is the force acting towards the Z direction. Force in an action as either a push or a pull that acts on an object. It has units given Newton. (N). Torque can be defined as the product as force and distance (r) about a point that causes the object to rotate. This is formal equation for torque is Ã"Ž=FrsinÏ ´ (Mathew, 2014, pp.4).F is the force in Newtons (N), r is the distance from the reference at which that the force acts at from the force vector at an angle from the distance. T orque= (Force) (Momentum arm), by convention a torque creating a clockwise rotation becomes negative torque, and a torque causing a counterclockwise rotation gives positive torque In this experiment, the force acting on a ring on a force table will be broken into constituents. The force, both magnitude and direction it will necessary to balance the ring. Equipment’s such as Force Table, Set of Hanging, Masses set of weights, three mass hangers, Ruler, Torque Balance Stand, string, two balances (Eisenberg, 2009 p.56) The mass for the 50gram disk was calculated. Also, mass of one of the hangers was measure. The mass of the disk was increased to the mass of the hanger, and its sum tabulated. This process was done again for second 50 gram disk and mass hanger. The sum was taken as M2 the components of for both X and Y of the force vectors given that m1 positioned at an angle of 40 degrees, and m2 is at 120 degree. In order to obtain the magnitude direction, a third force is necessary to balance