ShowsĬomparisons of times to complete the sorts. Quick sort, odd-even transposition sort, and the shear sort. It is particularly useful to show that one iteration ofĪ loop does not necessarily complete the swapping process. However, when sorting objects an iterative implementation of MergeSort is used. When sorting primitives, the Arrays.sort method uses a Dual-Pivot implementation of Quicksort. The basic goal of each method is to compare each array element to another array element and swap them if they are in the wrong position.Īttempting to illustrate the swapping process in various sortingĪlgorithms, use laminated number cards with craft magnets on the back.Īs you step through the sorting code, you (or a student volunteer) canĪppropriately maneuver the numbers, thus illustrating the workings of Java's method provides us with a quick and simple way to sort an array of primitives or objects that implement the Comparable interface in ascending order. There are many different ways to sort arrays. Magnets on the back become an instant teaching tools.) ( Teachers: laminated clip art with craft How are you going to accomplish this task? We do not want the stallion and the mare in the same stall at the same time because we do not want any Single-handedly switch the horses, having contact with only one horse atĪ time. YouĬan tell the girl horse by her fancy clothing! Your task is to You have a boy horse (a stallion) in one stall and a girl horse (a mare) in another. Remember the example in class of the two horses switching This process successfully exchanges ("swaps") the values of the two variables, Temporarily hold the value you do not want to lose: In order to swap two values, you must use a third variable (a "temporary holding Oops! What happened to the value in grade? It is lost!!!! Grade = 8 and you want to exchange their values so that
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