Comma Separated Data Set - Return Values In ArrayList
Feb 18, 2015
I am trying to write a program that will take any comma separated data set and return the values in an arraylist without any commas. Like if I input "hello, world, program, java" it would output an arraylist [hello,world,program,java].
public void run(){
String line = readLine("Enter a CSV-formatted line of data: ");
int lowerBound = 0;
String entry = new String("");
ArrayList<String> string = new ArrayList<String>();
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?
I am cleaning up print logs from an old system to be used in excel. I can get them down to each value is separated by a comma and looks like this.
TIME,1009 9/18/14,F/A RATIO,0.7590,NET AIR CNTS,66018.2,NET FLAG CNTS,50107.5,BKGROUND CNTS,61.0BW OF FLAG,49.807,DFRAC,-0.1834,ZFRAC,0.0000UP AIR TEMP,104.32,LO AIR TEMP,98.51,SOURCE TEMP,91.11,RCVR TEMP,97.95,,UP HEAD TEMP,93.89,LO HEAD TEMP,81.26
TIME,1026 9/18/14,F/A RATIO,0.7589,NET AIR CNTS,66026.3,NET FLAG CNTS,50107.4,BKGROUND CNTS,61.0BW OF FLAG,49.829,DFRAC,-0.1660,ZFRAC,0.0000UP AIR TEMP,104.93,LO AIR TEMP,98.42,SOURCE TEMP,92.65,RCVR TEMP,99.49,,UP HEAD TEMP,94.82,LO HEAD TEMP,82.23
TIME,1042 9/18/14,F/A RATIO,0.7584,NET AIR CNTS,66076.3,NET FLAG CNTS,50109.2,BKGROUND CNTS,61.0BW OF FLAG,49.955,DFRAC,-0.0652,ZFRAC,0.0000UP AIR TEMP,104.72,LO AIR TEMP,97.91,SOURCE TEMP,93.36,RCVR TEMP,99.52,,UP HEAD TEMP,95.31,LO HEAD TEMP,82.47
Where value follows its header. how can i export this to csv or excel with rows and columns?
How do i take input values for TwoDPoint (which are objects) and return it back in numerical values also print them.
When i create an object in main method and pass values to my function of return type TwoDPoint,it gives error:- found int,int need TwoDPoiint,TwoDPoint.
// Here is what i tried to do:
Created class TwoDPoint that contains two fields x, y which are of type int. Defined another class TestTwoDPoint, where a main method is defined.In the main method created two TwoDPoint objects.
Then I modified the class TestTwoDPoint and add another function to it. This function takes two TwoDPoints as input and returns the TwoDPoint that is farthest from the point (0,0).
Then I added another function to TestTwoDPoint. This function takes two TwoDPoints as input and returns a new TwoDPoint whose x value is the sum of x values of the input TwoDPoint's and whose y value is the sum of the y values of the input TwoDPoint's.
class TwoDPoint { int x = 2; int y = 4; } class TestTwoDPoint { public static void main(String args[]) { TwoDPoint obj1 = new TwoDPoint(); System.out.println(obj1.x); System.out.println(obj1.y);
Here is my HashMap and a method for listing all the keys in it
HashMap<String, String> exampleOne = new HashMap<String, String>(); public void allKeys() { int i; i =0; for (String name: exampleOne.keySet())
[Code]....
Now I want to return all values that associated with one key. How do I do this? Or is it possible to other way round? I mean return All keys associated with a value?
I have attempted on my own many times but I am not getting any closer to a solution.
/**
* Returns a SmartArray with eight values. The values are the values stored in the 8 neighbors of the array cell at the given location in the Smart2DArray.
* Start with the neighbor to the "north" of the given cell and proceed clockwise, using -1 as the value if the neighboring cell is outside the Smart2DArray.
For example, if the array is: 1 2 3 4 5 6 7 8 9
neighbors(1, 1) should return a SmartArray with the values: 2 3 6 9 8 7 4 1 in that order.
neighbors(2,1) should return a SmartArray with the values: 3 -1 -1 -1 9 8 5 2 in that order.
*/ public SmartArray neighbors (int col, int row) { }
I am making a java swing program. I have a main window that opens a JForm window when the user clicks a menu option. Then I have a button on the JForm that closes the window on click. However, I would also somehow like to make the JForm return values to the main window (according to the states of the selector components) when it is closed. How would I go about this? Currently my jForm is a seperate class called "NewGame", and inside the menu item mouse clicked method, I have the following code:
//open new game jform window NewGame newGameWindow = new NewGame(); newGameWindow.setVisible(true); newGameWindow.setLocationRelativeTo(null); //center window
Is there something I can add here to get the object's values upon the window's close? Or is there a way I can add that into the button clicked method on the actual jForm?
I'm a total newbie to Java, and until now all I've done was draw some shapes and flags. I'm struggling to understand the code I've been given. I need to access values stored in an ArrayList within another class. Here are the two classes Seat and Mandate:
package wtf2; import java.util.*; public class Seat { public int index; public String place; public int electorate;
[Code] ....
The main class contains code that feeds data from 2 text files into Seat and Mandate. From there I managed to access the date in Seat (at the end):
package wtf2; import java.io.*; import java.util.*; public class CW2 { public static void main(String[] args)throws Exception {
[Code] ....
Now,instead of getting just the mp for Edinburgh South I need to get the vote values, compare them to each other, take the second biggest and display the associate party value. How to access data from that Array to get started at least.
Write method distance to calculate the distance between two points (x1, y1) and (x2, y2). All numbers and return values should be of type double. Incorporate this method into an application that enables the user to enter the coordinates of the points.
Hints:
- The distance between two points can be calculated by taking the square root of
( x2 - x1 )2 + ( y2 - y1 )2
- Use Math class methods to compute the distance.
- Your output should appear as follows:
Type the end-of-file indicator to terminate
On UNIX/Linux/Mac OS X type <ctrl> d then press Enter
On Windows type <ctrl> z then press Enter
Or Enter X1: 1
Enter Y1: 1
Enter X2: 4
Enter Y2: 5
Distance is 5.000000
Type the end-of-file indicator to terminate
On UNIX/Linux/Mac OS X type <ctrl> d then press Enter
I am facing difficulties in identifying the proper way to add the selected colors of cards into an arraylist. I am having an arraylist which is:
Java Code: private List<String> selectedCars = new ArrayList<String>(); mh_sh_highlight_all('java'); And one more for the carColors:
Java Code: private List<String> carColors = new ArrayList<String>(); mh_sh_highlight_all('java');
The selectedCards array will store the selected cars ['TOYOTA','MAZDA','NISSAN'] as per the selection from the user.For certain types, there is one default color which is 'Black', however for some of them, the user can select different colors.(ex. if selection is 'Toyota') Java Code:
String carColor=""; String toyotaColor=""; // The value will be retrieved from the form once the user selected the color if (selectedCars.contains("MAZDA")) { carColor="Black"; } else if (selectedCars.contains("TOYOTA")) { carColor=toyotaColor;
I'm having an issues with adding integer values to a string list. The question is asking me "the method should iterate over runners, and for each runner generate a random number between 90 and 180 (inclusive) which should be used to set the time (in minutes) for that runner."
I have been able to get the random number and iterating over the runner arraylist but I haven't been able to figure out how to add the values generated into the runners list. I am also using BlueJ.
Here's the whole code I have at the moment:
import java.util.*; import java.io.*; import ou.*; import java.util.Random; /** * Write a description of class MarathonAdmin here. */ public class MarathonAdmin { // instance variables - replace the example below with your own
I am creating a shopping list, with each element and object called product from the Item attribute class. Each product object has a description, price, and priority. From user input, I am able to create each product object, and then .add to my arraylist. I know that it successfully adds because I have it printed in each iteration of the do-while loop. Once the user indicates they want to quit, the loop ends. I then want to print each description, price, and quantity but this for loop will only print the last element over and over. Here is what I have:
ArrayList <ItemAttribute> list = new ArrayList<ItemAttribute>(); Scanner keyboard = new Scanner(System.in); ItemAttribute product = new ItemAttribute(); public void findDescrPrice() { /** * Get the item name (description) for each list item
I am working on the Kevin Bacon - 6 degrees of bacon problem. I want to take my Array List and use the index and Values that I have saved in it as the Key and Value of a Hashmap. Below is my code.
HashMap<Integer, ArrayList<String>> actors = new HashMap<Integer, ArrayList<String>>(); ArrayList array = new ArrayList(); try (BufferedReader br = new BufferedReader( new FileReader("actors.txt"));)
[code]...
saving each one in it's own spot. I want to use the index of each one as the key to find it in the Hashmap....
I'm trying to return an array back to main. The array returned to main should contain the reversed random numbers array. I believe I have the array correctly reversed within the 'reverseArray' method. I'm trying to send this array back to main, but it appears to contain empty data (a bunch of zeros).
Java Code:
class ArrToMain { public static void main(String[] args) { final int NUMBER_OF_ELEMENTS = 1000; double[] numbers = new double [NUMBER_OF_ELEMENTS]; //Invoke initialize method initialize(numbers);
I want to use a method, which takes for example an int and also returns an integer. For example, if the the given integer is strong return a, if it is notstrong return b. How would you write that in a Code?
I want to use that in a more general way. I want to give a method mlong the value X of the type date and let it return an int. Type date consists of 3 int, one of them is the int month.
mlong should return an int depending on the X.moth. at the moment my code looks like this:
// File1: public class date { public int day; public int month; public int year; }
// File 2: public class monthlength { public int mlong(date X) { int t; t = X.month; if (t == 1 || t == 3 || t == 5 || t == 7 || t == 8 || t == 10 || t == 12) { return 31; } if(t == 4 || t == 6 || t == 9 || t == 11) {return 30;} } }
I'm trying to build a monopoly like game, and atm I'm trying to find way how to build the Community and Chance chest cards. so far, my logic is
1-create an ArrayList of cards with a given order
2-for a given number of times(for loop) generate 2 random numbers ,which will be the parameters for Collection.swap().
3-swap.
here's the code for the shuffler Button
shuffler.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { for(int i=0;i<shuffeledMessages.length;i++){ int randoma=(int)(Math.random()*4); int randomb=(int)(Math.random()*4); Collections.swap(myMessages,randoma,randomb); } } });
For now things seem to work pretty ok, but I'm wondering if this is a good and efficient way to shuffle a card chest especially in case of large number of cards. plus, I'm not sure what would be a good loop count for effective shuffling, in my case I used i<arraylist.size
I need assigning the selected hashmap values into a list and to display the values in a jsf page. The user will select certificates and will be stored in the below list:
private List<String> selectedCertificates = new ArrayList<String>();
The selectedCertificates will have the values ("AA","BB"). Now I will be passing the list into a hashmap in order to get the names and to display them on the jsf page.
Now my issue is that is how to display all the values of the CertificatesNames.get(key1) in the jsf page as I tried to do the below and it printed all the values when I used the #{mybean.beans} using the :
List beans = new ArrayList(CertificatesNames.values());
My code is like follows. I want add the lines of data from text file to arraylist.After add the lines to array list,i want to get the interesection between the lines of data. But I could not get the intersection and it returns empty. My sample data from specific line in text file as follows,
I have a form with primefaces input text(p:inputText).Many of the input text values are of the type currency in dollars.When i try to use ,it mandates the user to include $ symbol prepended to the value.Is there any way using which on blur of the field the dollar symbol is prepended and the number gets formatted with proper commas.
