Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Java Expert


Home >> Java

problem 1: The purpose of this problem is to practice using ArrayLists.prepare a Java client file containing a mainmethod plus other methods as needed to solve the following problem (no class definition file is to be used). (Remember to solve this problem by calling a number of methods, rather than writing large code segments)

A) Generate 30 random numbers between 1 and 1000 inclusive and store these in 2 different Array Lists simultaneously as described below:

a) each ArrayList should be created using the default size (of 10)

b) the first ArrayList should hold the random numbers in the order they are generated (so it will need to automatically expand to accommodate the data)

c) the second ArrayList should hold the random numbers in sorted order. This will be accomplished by inserting each element as it is generated into the second ArrayList using a modified version of the insertion sort code we studied in class

  • make a method that contains your modified insertion sort code.  Your code should work with an ArrayList, not a Comparable[ ].

B) Display the 2 ArrayLists, hopefully demonstrating that your modified insertion sort works (note the first arraylist will display the unsorted data, while the 2ndarraylist should be sorted)

C) Create another method that will perform a selection sort on an arraylist and send it the first (unsorted) arraylist. This method should contain a modified version of the selection sort code we discussed in class; the code is modified to use an arraylist rather than a comparable[ ].

problem 2: The purpose of this problem is to practice using generics.

A) Create a generic class with a type parameter that simulates drawing an item at random out of a box. For ex the box might contain Strings representing names written on a slip of paper, or the box might contain Integers representing a random drawing for a lottery. Include the following methods in your generic class, along with any other methods you’d like:

a) an add( ) method that allows the user to add an object of the specified type.
b) an isEmpty( ) method to determine if the box is empty.
c) adrawItem( ) method that randomly selects an object from the box and returns it.  Return null if the box is empty.

B) In the driver file that tests your class create 2 boxes, one with the names of 7 friends, the other with numbers between 1 and 5 representing the amount of hours of home work you will do before going to the party you’ve been invited to. Use the add( ) methods to populate the 2 boxes, and the drawItem( ) methods for each box to determine i) how many hours of home work you will do before ii) going to the party with the friend you will invite (from the “friends” box)

Java, Programming

  • Category:- Java
  • Reference No.:- M91800

Have any Question? 


Related Questions in Java

This program is for a school assignment here are the

This program is for a school assignment. Here are the requirements: Write a Java application that effectively uses Java collections to store pairs of unique colors and their unique hexadecimal values. For example, "Red" ...

Write a java application that allows a user to enter

Write a Java application that allows a user to enter numbers into an array and then process them. Enter the number of elements and the value of each element; Your application will process the data entered and will displa ...

When programming or solving any sort of problem for that

When programming, or solving any sort of problem for that matter, abstraction plays a key role in the decision-making process. It allows you to remove irrelevant details in order to understand the bigger picture. For exa ...

Question awhy is it important to avoid the use of reserved

Question A Why is it important to avoid the use of reserved words as you define variables, functions, methods, or identifiers? Do you have any get-arounds to the use of these reserved words that you like to use? (max 80 ...

The taskyou must design and implement in java a bookshop

The Task You must design and implement in Java a Bookshop Management System corresponding to the attached scenario. You are not required to implement the entire scenario, but the more functionality your system has, the h ...

Discussion please respond to the following promptbull

Discussion, please respond to the following prompt: • Compare and contrast abstract classes and interfaces. In what situations would you use an abstract class? in what situations would you use an interface? Imagine your ...

Submit one properly named rtf document inside your one jar

Submit one properly named .rtf document inside your one .jar file. lastname.firstname.mod4. 1. What is the characteristic behavior of a stack? 2. What is the characteristic behavior of a queue? 3. What are the advantages ...

Write java program with eclipsinstructionswrite a program

Write java program with Eclips INSTRUCTIONS Write a program that will help a student practice basic math (addition, subtraction, multiplication, and division). Display a menu the student can select from. The student will ...

Introduction to programmingjava programming assignment

Introduction to Programming Java Programming Assignment: Objects and Loops Your previous Alice programs implemented the count (for) and while loops. This assignment will apply the same concepts to Java, along with a thir ...

The paris hotels company needs a computer program to track

The Paris Hotels Company needs a computer program to track their hotel occupancy for the hotels in their chain. Write a Java program that calculates the occupancy rate for each floor of a hotel. A hotel's occupancy rate ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro