ECET 370 DEVRY Course,ECET 370 DEVRY Tutors,ECET 370 DEVRY Assignments Flashcards
ECET 370 Week 7 Lab 7 Binary Trees
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ECET 370 Week 7 Lab 7 Binary Trees
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Full set of lab with working programs.
Exercise 1: Lecture review: Binary Search Tree Create a project using the classes BinarySearchTree, Node, and Main in the DocSharing area labeled “The BST.” Compile the project, run it, and review the code that is given carefully. These programs test the code discussed in our lecture.
Exercise 2: An improved BST class Modify the class BinarySearchTree so that it contains the toString method, instead of the display method that was given originally.
Exercise 3: Using a BST in an application Use a binary search tree to implement a dictionary that contains the keywords in the Java language. Test it. Note that you can use the programs from the previous exercises. For a list of the keywords in Java, visit http://java.sun.com/docs/books/tutorial/java/nutsandbolts/_keywords.html.
Exercise 4: Recursion and Binary Trees Write a recursive algorithm that counts the nodes in a binary search tree.
Exercise 5: Using properties of BSTs Write an algorithm getMax to find the maximum value stored in a binary search tree.
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ECET 370 Week 5 Lab 5 Search Algorithms and Techniques
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ECET 370 Week 5 Lab 5 Search Algorithms and Techniques
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ECET 370 Week 4 Lab 4 Complexity of Computational Problems
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ECET 370 Week 4 Lab 4 Complexity of Computational Problems
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General Instructions
Exercise 1 uses the programs in DocSharinglabeled “Minimum,” “Factorial,” and “Sorting algorithms.”
Exercise 1: Review of the Lecture Contents Create projects using the classes in the DocSharing areas labeled “Minimum,” “Factorial,” and “Sorting algorithms.” Compile them, run them, and review the code that is given carefully. These programs test the code discussed in the lecture.
Exercise 2: Efficiency of Algorithms Problem 2 in the Section “Projects” at the end of Chapter 9 in the textbook: find a value of n for which Loop B is faster.
Exercise 3: Recursion Problem 1 in the Section “Projects” at the end of Chapter 10 in the textbook: recursive algorithm to find the square root of a given number.
Exercise 4: Sorting In this week’s lecture, the algorithms quicksort and bubblesort are described and implemented. In DocSharing, under the section labeled “Sorting algorithms,” you can find the class ArrayList where these sorting algorithms are implemented. Write a Java program that times both of them for various values of n. Create a table to record the times. Regarding the efficiency of both sorting methods, what conclusion can be reached from this experiment? Note: You can probably save development time by using the program from Week 2 to generate a list of the 1000 smallest prime numbers (in random order). This list could then be used as the input to the sorting algorithms.
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ECET 370 Week 3 Lab 3 Linked Lists
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ECET 370 Week 3 Lab 3 Linked Lists
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General Instructions
Exercises 1, 2, and 3 use the programs in DocSharinglabeled “User-defined linked list.”
Exercise 4 uses the programs in DocSharinglabeled “Using java.util.LinkedList.”
Exercise 1: Review of Linked Lists Create a project using the classes in the DocSharing area labeled “User-defined linked list.” Compile it, run it, and review the code that is given carefully. This code tests the LinkedList class provided in the lecture. Extend the class Main to test the functions isEmpty, search and remove of the class LinkedList.
Exercise 2: A User-Defined Linked List Modify the class LinkedList given in the lecture by adding to it the functions listed below for Exercise 2. In each case, the appropriate error message should be generated if an invalid condition occurs. a. toString(): modify the display function to overload the toString function of the Object class. b. int length(): create this function to determine the number of items in the list (accessor function). c. void clear(): create this function to remove all of the items from the list. After this operation is completed, the length of the list is zero. d. void insertEnd(int item): create this function to insert item at the end of the list. e. void replace(int location, int item): create this function to replace the item in the list at the position specified by location. The item should be replaced with item. f. int get(int location): create a function that returns the element at the position location.
Exercise 3: Using a Linked List This exercise is similar to Exercise 3 in Lab 2, but uses the LinkedList class implemented in Exercise 2 above. That is, using the class LinkedList, write a program that uses it to store 100 random numbers. Again, consider that each of these random numbers is an integer in the interval [0, 200]. Write the program in such a way that there are no number duplicates.
Exercise 4: Review of the Library Class java.util.LinkedList Create a project using the class in the DocSharing area labeled “Using java.util.LinkedList.” Compile it, run it, and review the code that is given carefully. This code is the complete program given in our lecture that tests the library class java.util.LinkedList.
Exercise 5: Using the Library Class java.util.LinkedList Rewrite Exercise 3 (above) using the class java.util.LinkedList to store the 100 random numbers.
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ECET 370 Week 2 Lab 2
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ECET 370 Week 2 Lab 2
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ECET 370 Week 1 Lab 1
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ECET 370 Week 1 Lab 1
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General Instructions
Exercises 1, 2, 4, and 5 use the programs in DocSharinglabeled “User-defined classes.”
Exercises 7 and 8 use the programs in DocSharinglabeled “Using interfaces.”
Exercise 1: Review of classes Create a project using the classes in the DocSharing area labeled “User-defined classes.” Compile it, run it, and review the code that is given carefully.
Exercise 2: User-defined methods The function area of the Triangle class is the framework of the actual method. Modify it so that it calculates the area of the triangle. Write a Main class to test your area method. Note: to calculate the area of a triangle from the vertices, first find the distances between each pair of vertices to obtain the length of the sides of the triangle. Then apply Heron’s formula to calculate the area given the length of the sides.
Exercise 3: Shallow versus deep copy Provide an example of shallow copy of objects and an example of deep copy of objects.
Exercise 4: Passing parameters to methods Write a function that swaps two Point objects. Use the code given below: import java.util.*; public class Main { public Main() { Scanner Scanner(System.in); System.out. print(“Enter x and y coordinates of first point: “); Point Point (in.nextDouble(), in.nextDouble()); System.out. print(“Enter x and y coordinates of second point: “); Point Point (in.nextDouble(), in.nextDouble()); swap(p1, p2); System.out.println(” Compile it, run it, and review the code that is given carefully. Note: The class Point implements the Comparable interface. The Comparable interface contains a single method: compareTo, which is used to compare two objects p and q of the same class type. When calling p.compareTo(q), it returns an integer. If this value is negative it means that p is smaller; if it is equal to zero then , and if the value is positive, it indicates that p is greater than q.
Exercise 8: Implementation of interfaces Using the class Point in the DocSharing area labeled “Using interfaces,” write an application that declares an array of Points, fills the array with random points, and finds the smallest point in the array. Related Tutorials
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ECET 370 Entire Course
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ECET 370 Entire Course
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ECET 370 Week 1 Lab 1
ECET 370 Week 2 Lab 2
ECET 370 Week 3 Lab 3 Linked Lists
ECET 370 Week 4 Lab 4 Complexity of Computational Problems
ECET 370 Week 5 Lab 5 Search Algorithms and Techniques
ECET 370 Week 7 Lab 7 Binary Trees
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