We are working with Java and Eclipse..One of the assignments asks to "Write an application that determines the number of coins in a jar and prints out the total in dollars and cents. Read integer values that represents the number of quarters, dimes, nickels and pennies. Use a currency formatter to print the output."
View RepliesThe question is we have to write a class named Coin. The Coin class should have the following field:
A string named sideUp. The sideUp field will hold either "heads" or "tails" indicating the side of the coin that is facing up.
The Coin class should have the following methods:
A no-arg constructor that randomly determines the side of the coin that is facing up ("heads" or "tails") and initializes the sideUp field accordingly.
A void method named toss that simulates the tossing of the coin. When the toss method is called, it randomly determines the side of the coin that is facing up ("heads" or "tails") and sets the sideUp field accordingly.
A method named getSideUp that returns the value of the sideUp field.
Now we have to create a game program using the Coin class. The program should have three instances of the Coin class: one representing a quarter; one representing a dime, and one representing a nickel.
When the program begins, your starting balance is $0. During each round of the game, the program will toss the simulated coins. when a coin is tossed, the value of the coin is added to your balance if it lands heads-up. For example, if the quarter lands heads-up, 25 cents is added to your balance. Nothing is added to your balance for coins that land tails-up. The game is over when you balance reaches on dollar or more. If your balance is exactly one dollar, you win the game. You lose if your balance exceeds one dollar.
I think I've completed the Coin class but the game program is giving me problems. I got it to add the balances when they land on heads but it only does it one time. I'm trying to figure out how to input a loop but I haven't had any luck.
CoinClass1.JPGCoinClass2.JPGGameProgram1.JPGGameProgram2.JPGGameProgram3.JPG
The goal is as follows: Write a UDP 'CompressionServer' that will take input from the user until it sees a "magic string" at which time it will create a compressed and uncompressed version of the file in the file system.
So, I need to integrate the following "Zip" code in to my UDP server code (which already creates the uncompressed file)... That is where I am stuck at now. My first few attempts had the Zip code after I write to "fout" but that failed to create a ZIP file.
I guess the main point here is what are the key pieces of the ZIP code that I should include and what would be the best spot to place them in my server code...
Zip Code:
import java.io.*;
import java.util.zip.*;
public class Zip {
static final int BUFFER = 2048;
public static void main (String argv[]) {
try {
String fileInput = argv[0];
String fileOutput = argv[1];
[Code] ....
I would like to bring a project in java program written by me, that interfaces with a fingerprint reader (already purchased, the reader U.are.U 4000b) and as I'm using fingerprint sdk sdk's Griaule.
View Replies View Relatedcan we use java programming for image processing. if yes then how do we do it?
View Replies View RelatedI have written a java code to transfer files from one server to another using the concept of socket programming. I got the codes from another java forum that meet my requirements. The program is said to transfer large sized files (like .mkv , .mprg movies) from one machine to another and can be used to transfer files of all formats. But after running the codes I found that the program is not able to transfer large sized files such as movies and even pdf of sizes 80mb or 111mb. When i transfer small sized files, it gets transferred and the output shows that. You can run the codes and observe it. But when i try to transfer large sized files, the program goes on running for hours. The large sized files are not getting transferred. The program has used bytebuffer but still this error occurs. The codes are as follows (I got them from this site [URL] ....)
**ClientMain.java**
import java.io.IOException;
import java.net.Socket;
public class ClientMain
{
private DirectoryTxr transmitter = null;
Socket clientSocket = null;
[Code] .....
1. ClientMain.java and DirectoryTxr.java are the two classes under client application.
2. ServerMain.java and DirectoryRcr.java are the two classes under Server application.
3. run the ClientMain.java and ServerMain.java simultaneously
Also specify the source directory, destination directory and host address of the machine in which server is running in the ClientMain.java (as per your computer). Here we are not specifying source file, instead a source directory or folder is specifying. So the entire files of source directory will be transferred.
1. Modify the following class so that the two instance variables are private, there is a constructor that accepts both the player's name and sport and there are get and a set methods for each instance variable:
public class Player {
String name;
String sport;
}
2. You can pass an instance of this class to the JLabel constructor if you want to display text in the label.Select one:
a. myLabel
b. myText
c. String
d. JTextField
e. JLabelText
how to start making this work?cause i am not familiar with the terms here and want to complete this program and I am new to java programming?
I have written this program but I am seeing error when I compile this program ( javac TestArithmetic.java).
1)TestArithmetic.java:26 cannot find symbol
2)symbol: class Arithmetic
3)location: class TestArithmetic
4) Arithmetic ar = new Arithmetic(x1,x2,x3);
1)TestArithmetic.java:26 cannot find symbol
2)symbol: class Arithmetic
3)location: class TestArithmetic
4) Arithmetic ar = new Arithmetic(x1,x2,x3);
2 errors.
Code :
import java.util.*;
class TestArithmetic {
public static void main (String[] args){
float number;
Scanner console= new Scanner (System.in);
System.out.println("Enter first number");
[Code] .....
I have written a java code to transfer files from one server to another using the concept of socket programming. I got the codes from another java forum that meet my requirements. The program is said to transfer large sized files (like .mkv , .mprg movies) from one machine to another and can be used to transfer files of all formats. But after running the codes I found that the program is not able to transfer large sized files such as movies and even pdf of sizes 80mb or 111mb. When i transfer small sized files, it gets transferred and the output shows that. You can run the codes and observe it. But when i try to transfer large sized files, the program goes on running for hours. The large sized files are not getting transferred. The program has used bytebuffer but still this error occurs. The codes are as follows (I got them from this site [URL] ....)
**ClientMain.java**
import java.io.IOException;
import java.net.Socket;
public class ClientMain
{
private DirectoryTxr transmitter = null;
Socket clientSocket = null;
[Code] ....
Note that:-
1. ClientMain.java and DirectoryTxr.java are the two classes under client application.
2. ServerMain.java and DirectoryRcr.java are the two classes under Server application.
3. run the ClientMain.java and ServerMain.java simultaneously
Also specify the source directory, destination directory and host address of the machine in which server is running in the ClientMain.java(as per your computer). Here we are not specifying source file ,instead a source directory or folder is specifying.So the entire files of source directory will be transferred.
I am new to java and do not understand how to use filters very well. I need to write a code that determines if an integer is not divisible by some value. A filter also contains an upstream filter so that this filter can be part of a chain of filters.
View Replies View RelatedRemove the words that begin with two consonants.
View Replies View RelatedI am new to java programming and using bluej for programming and i have tried this question what i have have given in title ... how to find out the errors in the following program:-
class Primedig {
public void getinput(int n) {
int ctr=0;
while(n!=0) {
int r=n%10;
for(int i=1;i<=r;i++)
[code] .....
output:-
For example input is 243 the output comes only 3 not 2& 3 both.
Ive been trying to create a program to say how many 5cent,10 cent and 50 cent coins there are if you put a number in example 20. I used the init method because thats what the teacher told me to use but i have no clue on what to do.
View Replies View Relatedhow to avoid getting negative numbers of coins, use casting and mod to show how many quarters, dimes, nickels, and pennies there are?
import java.util.Scanner;
public class VM
{
public static void main(String[] args)
{
//money deposit
Scanner input = new Scanner(System.in);
[code]....
I'm very new to writing code (college freshman) and I need a code that prompts for and reads in the number of coins in one of the piles, as well as a String containing a single letter to indicate the type of coin in that pile: "P" for pennies, "N" for nickels, "D" for dimes, and "Q" for quarters. The program then computes the value of that pile of coins and prints it out. Here's what I have so far:
import java.util.Scanner;
/**
This program reads a student's final class average,
and prints out the appropriate letter grade..
*/
public class Coins
{
public static void main(String[] args)
{
// Define constants
[Code]...
I have a simple java program to write which tells the user combination of coins that equals to the amount of change i.e:
user input 87
output:
3 quarters
1 dime
0 nickels
2 pennies
How the program remembers the remainder which is passed to the next column of let say dime
i.e
originalAmount = amount;
quarters = amount /25;
amount = amount % 25; <---- this is confusing for me?!?! how can the integer = integer % 25
dimes = amount / 10; <--- HOW THE PROGRAM remembers the "remainder" instead of the original user input as the code it self tells you dimes = amount where "amount" is what user input NOT remainder.
amount = amount % 10;
so on ....;
What I don't understand is HOW this algorithm works. I mean we have int amount where user inputs the number we get the first calculation amount/25 = how many quarters and then amount %25 WILL tell us about the reminder. By looking at this piece of code I would say that the system should start the calculation for the dimes again from the original number since the code says dimes = amount/10 AND amount = amount%10. My understanding is that the calculation should be done from the original user input.
Book or code it self is not clear for me how the reminder is "REMEMBERED" and then pass on to the next calculation>!?!?
UNLESS the code: amount=amount%25 gets the remainder so the next code under it is REQUIRED to read from the last prompt code.
i have to ask user gross sales until -1 sentinial and to get the commission to put in groups its 9% times the sales add $200
the groups are formatted
a) $200-299
/> $300-399
....
i) $1000 and over
import java.util.Scanner;
public class Commissions {
/**
* @param args
[Code]....
I'm just trying to learn how to cut the IDE out of my programming.I've added C:Program FilesJavajdk1.7.0_55in to the environment variables (path), am navigating to the src folder where my java class exists in cmd prompt, and then typing "javac CaesarCipher.java", but its complaining that it can't find the file.
Is the problem something to do with the relative address of the compiler to the file it needs to run? Just a stab in the dark on my part. Or do I have to add the JRE path as well as the compiler?
I find myself asking these two questions because I see them as relating. First question is; I always write
Java Code: f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); mh_sh_highlight_all('java');
(where f is a JFrame object)
to set the close for the JFrame. What I don't get about this is what is going on in the parenthesis. I looked in the Java Documentation, and it says an int goes inside. In that case, I don't really get what the word JFrame is doing there. Overall, please explain what is inside the parenthesis of that line and why it has to be there.The second question is a generic question. I notice a lot of times an object will be created, and as its parameter, you will have to instantiate an object. an example would be
Java Code: Class f = new Class(new Object) mh_sh_highlight_all('java');
What does it mean when an object gets created inside of a new object? Why is putting Java Code: new Object mh_sh_highlight_all('java');
ever necessary when concerning the two parenthesis?
class triangle
{
public static void main (String[] args)
{
System.out.println("Provide three side lengths - 000 to terminate.");
int a = In.getInt();
int b = In.getInt();
int c = In.getInt();
[code]....
My problem is that when I enter 5,2,5 it should be isosceles and acute but it comes out as isosceles and obtuse, and when I type 5,5,5 it comes out equilateral and right. The only one that works is if I enter 3,5,4 it will come out as scalene and right. I been at this for a while and my math looks correct.
I'm having problems programming the LightsOut game. I made a 5*5 matrix and filled it in with 1's and 0's, where 1 means on and 0 is off, they should be placed randomly. The player can choose a field, for example "A2", and the matrix should change according to the input. My problems are how can I choose a field ? How can I display the new matrix after playing the first step and so on?
PS: I'm using the console because I'm still not good with JOptionPane commands.This is my code for the Game:
public class TestLightsOut {
public static void main(String[] args) {
// TODO Auto-generated method stub
int[][] blocks = new int[5][5];
String[] letters = { "A", "B", "C", "D", "E" };
String[] numbers = { " ", " ", " ", " ", "1 ", "2 ", "3 ", "4 ", "5 " };
String[] line = { " ", " ", "_", "_", "_", "_", "_", "_", "_",
"_", "_", "_", "_" };
[code]...
What is difference between algorithm and programming?How to develope algorithm knowledge?
View Replies View RelatedI'm learning Java and came across saving user preferences. As I was learning I also learned about object serialization and File input/output. I've heard that the windows registry can be a problem because it can quickly become a dumping ground for uninstalled programs. So my question is why should I use the Preferences API? and is it really good practice to program to the registry for saving information? I'd also like to be in good standing towards the programs I write so if it is common practice to write to the Registry how exactly would I manage the information that I dump into the Registry?
View Replies View RelatedI am looking to program a simple genetic algorithm in Java but where to start.
" In a computer language of your choice, implement a simple genetic algorithm (GA). That is, write code for a generational GA which uses a binary encoding, tournament selection, single-point crossover and bit-wise mutation" ....
what is meaning of Open Source in programming lenguages?
I want to ask this question reagrding this context that if some company or some products that says "This is open source" all codes are available Then it it mean..
1)We can reuse,re produce,distribute this code,modify and sell it for commercial purpose?
I know there is license also attach with a OpenSource.
But What exactly meaning of OpenSource?
Which of these is not a real differentiator for programming languages:
a) Object-oriented / Process-Oriented
b) Interactive / Automated
c) Interpreted / Compiled
d) Strongly-Typed / Weakly-Typed
e) All of the above
f) B and C
g) B and D
Almost all support OOP, Interactive/Automated, Interpreted/Compiled but not sure about Strongly typed/Weakly typed.