Display Loan Amounts Of Various Loan Objects Located In Binary File
Dec 6, 2014
In the following piece of code Iam trying to display the the loan amounts of the various loan objects located in a binary file. Iam trying to do his using getLoanAmount() in the loan class. the program is compiling but nothing is showing up on he console.
Program
import java.io.*;
public class Exercise19_06 {
public static void main(String[] args) throws ClassNotFoundException, IOException {
ObjectOutputStream output = new ObjectOutputStream(
new FileOutputStream("loan.dat"));
I keep getting an error every time saying there is no main class ...
Loan
public class Loan implements LoanConstant{ public static int loanNumber; public static String lastName; public static int loanAmount; public static int interestRate; public static int term; public int primRate;
I'm currently working on a loan calculator... The only problem I'm having is occasional values that have very long decimals... How do I round the decimals?
I'm making a loan calculator that uses compound interest... I need the program to return the monthly payment, how much of it is principal and how much of it is interest, which depends on how many months into your loan you are... So basically all I need is the algorithm to calculate how much of your monthly payment (depending on how many months in you are) is interest and how much of it is principal.
calculate how long it would take to pay off a loan of 500 pounds if there was 10% interest monthly, and 100 pounds was paid each month. This code is in a pseudocode,
set months = 1 set balance = 500 set totalpaid = 0; while balance > 100 balance = balance - 100; set interest = balance * 0.1 balance = balance + interest totalpaid = totalpaid + 100 months = months + 1 endwhile totalpaid = totalpaid+balance display "you paid "+totalpaid display "It took you "+months+" months"
so I had to make a program that prompts the user to enter a loan amount and the years for the loan and I have the conversions and everything my only issue is that when the chart pops up it just looks like a bunch of numbers and its missing the column headers
for example
Interest Rate Monthly Payment Total Payment
import java.util.Scanner; public class InterestRate { public static void main(String[] args) { double monthlypayment = 0; double totalpayment = 0; Scanner input = new Scanner(System.in); System.out.println("Enter Loan Amount");
We're learning how to use Binary I/O commands...which equates to....
My issue is trying to relate the Fraction objects (which we are to create using a loop) with the read/write methods used in Binary I/O (input/output streams). I left a blank after the output.write(), so you can see where the issue exist.
Java Code:
import java.io.*; public class FractionTest { public static void main(String[] args) { int [] fraction = new int[3]; for(int i = 0; i <= fraction.length; i++){ Fraction numbers = new Fraction();
I'm doubted regarding the implementation of Collections.binarySearch() method on an ArrayList of objects of a custom class Movie.
Here is the movie class :
public class Movie implements Comparable<Movie> { String movieName; String rating; String director; String theme;
[Code] .....
The sort/binarySearch in searchByMovieName function is done with natural sorting (and Comparable Interface in Movie class). I mean no comparators involved here. And the comparator that I used for sorting/binarySearching on Movies Director attribute in searchByMovieDirector function is :
public class MovieDirectorComparator implements Comparator<Movie> { public int compare(Movie movie1, Movie movie2) { return movie1.getDirector().compareToIgnoreCase(movie2.getDirector()); } }
But I was not able to implement binarySearch ?? How to implement the binarySearch here. I have google to see only binarySearch working on Arrays or probably ArrayList of String only, but not on ArrayList of custom objects.
This is what I've tried so far. What i want to do is to calculate all Total Amounts by adding all the rows (5th column only),as 5th column has total amount for 1 product, and set the text for a JTextField whenever the 5th column of any row changes its value.But this isn't working my way. I have also tried keyListener to trigger that change at Enter key typed but that also don't work for me.
I've written a die program, and i want the user to type any key in order to continue, how do i achieve this ?
I have already created a Die class, i just want to implement the main method now.
PHP Code:
package test;
/* This program demonstrates the use of a user-defined class
public class RollingDice { // Creates two Die objects and rolls them display the values. public static void main (String[] args) { Die die1 = new Die(); System.out.println("Roll the die ") } } mh_sh_highlight_all('php');
What should i add after System.out.println, So that the user types (any key, or types "Enter" for example, for the die to roll). i dont want the die to roll by itself i Want the user to interact with the program in order for it to roll.
Write a class named FileDisplay with the following methods:
1.) constructor: the class's constructor should take the name of a fil as an arugment. 2.) displayHead: This method should display only the first five lines of the file's contents
Here is the following code I have made so far
import java.io.*; public class FileDisplay { private String filename; public FileDisplay(String Filename) throws IOException
[Code] ....
First, in my constructor I have taken in an argument and used that argument to open up an output file. Meanwhile, I'm trying to work n the displayhead method to print out information and to read data to. I haven't opened up my input file yet, but I'm not understand how can I read a print data to an output file. in
public void displayHead() {FileWriter file=new FileWriter(Filename)}
do I make create another instance of the filewriter class to output data?
In simple words, suppose to I want to display some messages on my output file in the displayhead function. Since I already have opened up the file in the constructor, how do I combine that in this method...
I have a code to resize a single rectangle. I would like to display and resize multiple rectangles independently and according to my research on the net, the best way is to use an arraylist. So I modified the code in this sense, except ...when I run the code, the rectangles appear good but impossible to resize. I think the problem comes from mousePressed, Released, Dragged and Moved methods. When I use the mouse to resize the rectangle, nothing happens. The code does not interact with the arraylist, and therefore with rectangles it "contains". Resizing is my main class, the MouseAdapter is in the Resizer class (below).
Resizing component; boolean dragging = false; // Give user some leeway for selections. final int PROX_DIST = 3; Path2D.Double selectedPath; public Resizer(Resizing rz) { component = rz; component.addMouseListener(this); component.addMouseMotionListener(this);
I am trying to apply for a job in testing the following java application.I have received a tool written in Java and I need to run it with the command line:
I am currently using the following Rally API Java code(below...in Java 1.7) to create an object and attach a file to it. This code works fine. But I need the code to be a little less specific and attach all files located under a folder (not just one file). How could one potentially rewrite this code (or use a different constructor/method) to accommodate such a thing? Also additional code how to narrow down results to all files with a creation date >= today.
iam trying to sum all the integers in a binary file. the integers are 0-9. IAM having trouble exiting the while loop to display the sum. below is what i have so far which is not displaying the sum.
import java.io.*; public class binaryAdd{ public static void main(String []args)throws IOException{ DataOutputStream output= new DataOutputStream(new FileOutputStream("myBinary.dat")); for(int i=0;i<10;i++){
Everything compiles but doesn't work like it should. What the idea is, is to be able to add class personnel objects and have them saved in a file, so that later on i would be able to see them.
Back to my problem: When i create a new "Personnel" and try to run Write and read, to see if my new "Personnel" is added to the list, it's not there at all... what do i do wrong?
import java.io.*; class Personnel implements Serializable //No other action required by Serializable interface. { private long payrollNum; private String surname; private String firstNames;
I have a unix program that simulates an accident evolving as a function of time and produces two files. I will focus on the first file before getting to the second. This first file has five output variables/vectors (velocity vs time, pressure vs time, etc), which are selected as part of the simulation input. These are the variables I have to put into Excel if I want to view the transient graphically. Where it gets tedious is that, if I want to view a different set of five variables, I have to rerun, extract, put these in Excel to plot. There can be lots of variables needed to properly characterize the accident.
The second file produced is a really large binary file. This file contains all the information that I'd need, precluding the need to rerun to view a different set of output variables. This is the file that seems tailor-made for a Java or something to be able to extract the information. That is, it seems like Java could be used to do this work: extract variable information from the large binary file. Eventually, I would like to plot it too and I know I could use Java there.
I think my steps are:
1) understand the format of my binary file 2) reconfigure the binary file for use with java (is this demuxing?) 3) learn java programming for this application: extracting information to produce something like a .csv file with time on the leftmost column and variable information populating the rest of the columns.
So I am having trouble with trying to get the main method to work. The program is supposed to construct a BinaryTree, and deserialize a file that is used for the Tree.
I am trying to draw a binary node tree to a text file.
public class BinaryTreeExample { public static void main(String[] args) { new BinaryTreeExample().run(); } static class Node { Node left; Node right; int value; public Node(int value) {
[Code] .....
This will output:
Building tree with rootvalue25 ================================= Inserted 11 to left of node 25 Inserted 15to right of node 11 Inserted 16to right of node 15 Inserted 23to right of node 16 Inserted 79to right of node 25 Traversing tree in order ================================= Traversed 11 Traversed 15 Traversed 16 Traversed 23 Traversed 25 Traversed 79
I need to print this information in the form of a graphic to a text file. so for example:
