Breaking Parts Of A File Into Objects
Apr 12, 2014
so I have a Text File that looks like this:
JohnGibson9127OakDrCorvallisOR973305552812313156.78
RonWills1155IvyPlAtlanticGa373395552123145189.56
RitaJones1259ChaseAveLas VegasNV8712655544456712145.60
JasonKnight7154PineDrGresjam OR9738055581245453157.44
ClaraSwanson1944MainPlSpringfieldCA973395552123144212.99
it has first name tab, last name tab, so on I'm saying this because it kept changing format but they are Tabs betwwen each word.
I need to print it in the correct order, so I will need to break this down into objects such as FirstName, LastName,Adress ect. I don't know how to break it into pieces. here is my code thus far:
import java.io.*;
import java.util.Scanner;
public class Postal
{
[Code]....
in which while loop do I add these variables, and could i get a example of how to do one, like first name?
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Apr 16, 2015
I have a file that has the following text in it:
# Main configuration file for DEDServer
# Starting resource values
startingGold=1000000000
startingElixir=1000000000
[Code] ....
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Apr 18, 2014
I'm suppose to read the following code and devise a program that can break the lock.
public class InsecurePasswordLock {
private char[] secret;
private boolean unlocked;
public InsecurePasswordLock() {
// secrets are usually 30 to 50 upper case characters long
// but here's a hard coded example one
secret = "ASECRETTHATYOUWILLNOTGUESSTODAY".toCharArray();
[Code]....
So, I believe that I can try various password lengths until I get a return from open that !=-1. But I'm not sure how to implement this. This is what I have so far to get the length:
public char[] breakLock(InsecurePasswordLock lock) {
int checkCount=1;
int length=0;
while(checkCount!=-1){
for(int i=0;i<=25;i++){
char[] key = new char[i];
if(InsecurePasswordLock.open(key)!=-1){ // I get a fault at this line for calling a static method
length=i;
checkCount=-1;
}
}
}
I get the error:
Cannot make a static reference to the non-static method open(char[]) from the type InsecurePasswordLock..
How can I keep querying the open method to get my length??
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Oct 12, 2003
I'm trying to figure out how to read in an integer and break it down into a sequence of individual digits in reverse order. Example: an integer input of 12345 gives an output of54321.
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Dec 7, 2014
I get no errors but the gui is not displaying
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package part1;
import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import javax.swing.*;
class brick {
[Code] ....
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Aug 6, 2014
I have a question about a method I have. In my game, I had a move method to move my player left and right, and originally this method was huge, as it also took care checking collisions and a few other things. I broke it up a bit and put the collisions in their own methods and call them from again another method... Here is an extract which I hope illustrates my point:
private static final double MOVE_SPEED = 0.2;
private static final double MAX_MOVE_SPEED = 3.5;
private static final double STOP_SPEED = 0.18;
private double xPos;
private double yPos;
[Code] .....
Something I thought might be a good idea is to check the direction collision when im doing the calculations for that direction:
if(moveLeft) {
dx -= MOVE_SPEED;
(dx < -MAX_MOVE_SPEED) {
dx = -MAX_MOVE_SPEED;
}
checkLeft();
}
But then I would also need to check it when I'm slowing down the left movement:
if(dx < 0.0) {
dx += STOP_SPEED;
if(dx > 0.0) {
dx = 0.0;
}
checkLeft();
}
Then I thought instead i can check it after both of these steps:
if(moveLeft || dx < 0.0) {
checkLeft();
}
I guess my question is quite general: How much is acceptable to break up a method? How many chains of method calls is acceptable? Is it ok to call the same method from different nearby places?
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Apr 9, 2015
Suppose i have a string S="a.png,b.png,c.xlsx";
I need to extract only c.xlsx, how i will do these in java
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Nov 27, 2014
You are given 2 files - "testcase.txt" and "validwords.txt".In testcase.txt, the sentences are written without any space inbetween/for ex: this is a sentence which looks ambigous.You are to insert a space at the proper place by breaking the sentence into correct words, ex o/p: this is a sentence which looks ambigous.validwords.txt contains all valid words (as 1 word per line). If you find a word that does not match, replace it with ####. After correcting
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Jun 14, 2014
I was working on my personal project when I realized I needed to split a string and extract 2 elements of it. The way it works is the user enters 2 numbers separated by a comma like this: 4, 8. Then I want to put the first number into a veriable called x and the next number into a variable called y. How can I do this?
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Aug 11, 2014
I am working on a time sheet program. I want to split punches into three parts.
Suppose an employee punch in at 8:45 am and punch out at 5:30 pm.
If the shift is 9:00 am to 4:30 , i want to split the above time period to period before shift, period in shift and period after shift.
In this case :-
8:45 am -9:00 am
9:00 am -4:30 pm
4:30 pm -5:30 pm
He had worked 15 minutes prior to his shift, 7.5 hours in his shift and 1 hour after his shift.
I want to do this to calculate regular hours and over time.
Is there any easy way to split this time interval ??
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Oct 30, 2014
I have a couple more (2or3) and I believe I'll be ready to go 8-)This one is about an Army and a list of warriors... for example 1,2,3,4,5,6,7,9,10 .... and the user inputs points for two sequences, for example 1, 5 and 6,10 .... That means I have to take the array from the 1st element, up to the 5th one, and swap it with the elements from 6to10....
The nest list should be:
6 7 8 9 10 1 2 3 4 5
Things to keep in mind: The list will always have at least two warriors. The intervals will never interfere, and will at least contain ONE warrior..
It says: be careful when the intervals are next to each other, and when be careful when an interval starts with the first warrior, or finishes with the last warrior.
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Dec 1, 2014
Divide an Array in two Parts in such a way so that sum will be equal while we add all the elements of array.
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Mar 9, 2015
I am trying to create a serversocket that send a binary in parts ie send 1024 bytes then wait for acknowledgement from the client before sending the next 1024. I am able to do it in udp but the client is tcp. This is my code so far
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
public class TestFtp {
[Code]....
I have not been able to send then receive acknowledgement before sending the next 1024 bytes.
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Aug 20, 2014
If I am using the File object to read a file and PrintWriter object to write to a separate file, can I use them under one method. Or is the File one method and the PrintWriter another method?
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Dec 20, 2014
I'm doing this assignment in which i have to write some products in csv file...but as u can see in csv file two products are same "Cooking Oil"..so any method that can add two same product's quantity and their amount and write them in file
import java.util.*;
import java.io.*;
public class SalesbyTransactionMonth{
private static final String fileName = "Data.txt";
private static final String fileName1 = "sales_by_trans_month.csv";
String line = "";
[Code] ....
Attached image(s)
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Jul 1, 2014
How to convert to bpel file into java objects?
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Jul 18, 2014
I need to create a new text file and instantiate objects using an array that writes them to a file and working with the array part.
public class NewTextFile
{
private Formatter file;
public void openFile()
{
try
[code]....
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Sep 15, 2014
I am trying to read Point objects from square.drw file which contains endpoints of line segments, and draw lines making a square on panel when I run the program. This is what I have got so far. How to get the points using array for drawing ?
// Initializing fields
private Point[] endPoints ;
FileInputStream fos;
ObjectInputStream oos;
int sampleSize = 0;
[Code] ....
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Sep 15, 2014
I am trying to read Point objects from .drw file which contains endpoints of line segments, and draw lines making a square on panel when I run the program. This is what I have got so far. how to get the points using array for drawing ?
// inside the method to read points objects from .drw file
try {
fos = new FileInputStream("square.drw");
oos = new ObjectInputStream(fos);
// creating an object of Point class
endPoints = new Point[sampleSize];
[code]...
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Apr 14, 2015
I am simulating a game. This involves creating two Player objects(either HumanPlayer or ComputerPlayer), a TheBoard object, a TheGame object and a TheGameManager object. In the TheGameManager, i am trying to get it so that i can save the two Player objects, the TheBoard object and the TheGame object in current use at some point in the game and then load them later at some point. However, after debugged, i have found that it doesnt like the writeObject() method and skips and sends an exception up.
My TheGameManager class has the following fields:
public class TheGameManager implements GameManager {
private Player player1;
private Player player2;
private TheBoard currentBoard;
private TheGame currentGame;
//private String[] args;
private int iterations = 1;
[Code] .....
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Jul 27, 2014
I am currently working on a project where I need to return data from a database over RMI to a client who requests it. Some of the fields in the Data Object can not be seen by the client so I need to create another object to send over the network instead. The method I use is this...
public static SerializableObject createSerializableObjectFromDataObject(DataObject dataObject){
SerializableObject serializableObject = new SerializableObject();
serializableObject.setField(dataObject.getField());
serializableObject.setAnotherField(dataObject.getAnotherField());
return serializableObject;
}
Is there a better way of doing this? I am creating many subclasses DataObject which all require this static method to be implemented and I can't push it into the superclass because each one needs custom behaviour.
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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"));
[code]....
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May 22, 2014
Let's say hypothetically you're making a huge program and use a lot of imports (ex import java.util). If you only need a few specific things from java.util, will it use more memory importing java.util.* compared to only importing lets say java.util.Scanner, java.util.ArrayList, etc. Basically does importing a whole package use more (if any at all) memory than only importing specific package parts?
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Jan 23, 2015
how String objects are different from other objects
part 1:
// creating two objects
Dog mydog1 = new Dog();
Dog mydog2 = new Dog();
// comparing the reference variables
if( mydog1 == mydog2){
System.out.println(" The reference variables refer the same object ");
}
else {
System.out.println(" They refer to different objects ");
}
The above code works as I understand objects , it prints "They refer to different objects " to the screen.
Part - 2
// creating two objects ( I beleive, pls correct me if i am wrong )
String a = "haai";
String b = "haai";
if( a == b){
System.out.println(" Reference variables refer to same object");
When i run the above code it prints that a and b refer same object , I don't understand how they refer to same object when i didn't assign " String b = a; ". My question is did java just create one object and stored the same reference values to a and b .
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Apr 23, 2015
I am trying to remove a line based on user input. myFile.txt looks like:
Matt
Brian
John
However when I enter "Brian" (to remove this line), It is deleted on the temp file (myTempFile.txt), but not renamed back to the original file (myFile).
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
[code]....
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Sep 29, 2014
I have a requirement to insert the data into xml file . I have used DOM class for doing this. Below is my xml file
<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
<deployments>
<applications>
<application>
<name> PCMH</name>
[Code] ....
The thing is if SITA is the name then I have to insert component to the particular envi tabs , if DEVB is the component I have to insert the component there. How can I do this I have done some code its inserting the data at the bottom og the XML .
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