How To Create A Loop To Populate Activity

Dec 5, 2014

I'm working on my Android project where I created Expandablelistview with men's and women's sports. Now I have to populate each sport with my text data which contains events. I'm stack at this point, already tried few thing but that did not work. Here is my data how it looks like:

this Main (id=831962574768)
groupedFeeds ArrayList (id=831963150464)
array Object[12] (id=831963153088)
[0] GroupedFeed (id=831963152968)
category "Women's Golf" (id=831962986192)
feeds ArrayList (id=831963152992)
[1] GroupedFeed (id=831963153592)

[Code]...

I have here my Main method where I have to pass data to each of my sports(activities). I tried to create a for loop and then pass result to my sport(activity) but I'm doing something wrong and can not get that work. Here is my code:

GroupedFeed findFeed(String locateSport){ //here I tried to create a loop which gonna search for certain sport in array list
//and then pass it to gfResult. }
public boolean onChildClick(ExpandableListView parent,
android.view.View v, int groupPosition, int childPosition,
long id) {
switch (groupPosition)

[Code]...

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Using For Loop To Populate Array With Random Double Values

Oct 26, 2014

Write a program that creates an array that can hold 9 double values that represent baseball batting averages for a starting baseball lineup. Use a for loop to populate array with random double values in the range of 0.00 to 0.500. Recall that "double" values are what Java calls "real" numbers. Use a second for loop to print the values in the array with one number per line. Finally, use a third for loop to traverse the array and find and print the maximum batting average in the array. Note: you will need to use String.format to control the precision of a double number when you print it- Here is my code so far:

public class P2F {
public static void main (String[] args) {
double [] player= new double [9];
//player[0]= Math.random();
for (int index=0; index < player.length; index++) {

[Code] ....

When I open the terminal window I get different variations of this [D@4545c5]. I would like to know all the things I am doing wrong.

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I have achieved what I want to achieve in that I am successfuly creating the selected object within my ListCellRenderer class.

For the purpose of testing I am using a call to the JOptionPane.showMessageDialog method to display the id of the selected object.

So, I launch the JFrame, the JList is populated, I select an item from the JList and the id value is displayed in the prompt. All this works fine except for one thing.

When I click OK on the JOptionPane.showMessageDialog prompt, the prompt disappears and reappears. The system seems to be in a loop. It is behaving as if the change or click event handler on the JList keeps firing.

This happens even without the creation of the object:

BookEntry be = (BookEntry)list.getModel().getElementAt(list.getSelectedIndex());

I have scoured the code and object properties to see if I can figure out where this behaviour is coming from without success.

All there is in the JFrame design view is a single JList with a variable name of "list". Everything else is in code as below:

Here is the .java code. Its not that complex

import java.awt.Color;
import java.awt.Component;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.ListCellRenderer;
import javax.swing.DefaultListModel;
 public class NewJFrame3 extends javax.swing.JFrame {
 
[Code] .....

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I didn't see anything specific to Android. I am a very basic beginner when it comes to JAVA and Android programming.

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Here is my MainActivity Code:

package net.androidbootcamp.comicapp;
import android.support.v7.app.ActionBarActivity;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;

[Code]...

Here is the code for the second panel:

package net.androidbootcamp.comicapp;
import android.app.Activity;
import android.os.Bundle;
public class Panel2 extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {

[Code]...

Here is the code for Panel 3:

package net.androidbootcamp.comicapp;
import android.app.Activity;
import android.os.Bundle;
public class Panel3 extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {

[Code]...

And here is the manifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="[URL].."
package="net.androidbootcamp.comicapp"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk

[Code]...

I am sure it is something very simple but I am not sure what it could be.

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I am trying to develop an application which will be showing a TimeSeries graph(related library JFreeChart) displaying network activity related to a particular network interface embedded in a JFrame.I have created a JPopUpMenu which is having containing a list of JMenuItems showing network interfaces as their String values.Menu is popping up correctly

Further I am selecting a JMenuItem related to a particular network interface to show network activity in TimeSeries graph.On selecting a JMenuItem I can see that graph is moving on constantly but not able to see any network activity.

Pasted the code below :

package com.ankit.analyser;
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.Window;
import javax.swing.JFrame;

[Code] .....

Further I can see that packetArrived method of PacketListener is not being overridden by class PacketHandler as I am not able to see data packets on console and static list in main class is also empty.

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Feb 23, 2014

I need to write up a code that will print the lyrics of the Green Bottles song. So it will ask the user to input a number and it will use that number to print the lyrics and then count down from that number. For example, user enters the number 5, the program will run and display:

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5 green bottles hanging on the wall

and if one green bottles should fall

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4 green bottles, hanging on the wall...." and so on.

So far I have managed to write a code that will display the number that is entered but I cant figure out how to subtract the number by 1 to continue it. My code so far:

import java.util.Scanner;
public class SomeJavaCode
{
public static void main(String[] args)
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[Code] ....

How to code it so that it substracts the number and repeats the rhyme till 0.

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pyramid.jpg

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I know I can't use something like a for loop to do it, so how would the code be writte

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package pkg06;
public class Main {
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[code]...

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Oct 26, 2014

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If I do like this, null is also sent to Utskrift. I dont want that to happen.
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String text = "";
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text = showInputDialog(null, "Enter text:");
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if (text == null){
[Utskrift(ord.getNumber(), ord.getString(), ord.getWords());
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DEPRECIATION SCHEDULE
------------------------------------------------
YEAR DEPRECIATION END-OF-YEAR ACCUMULATED
VALUE DEPRECIATION
---- ------------ ---------- ------------
1 4000 24000 4000
2 4000 20000 8000
3 4000 16000 12000
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I did attempt it. I'm just extremely stuck and don't know how to move forward. My code is below:

import java.util.Scanner;
public class Depreciation_for
{
public static void main(String[] args)
{
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[Code] .....

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DEPRECIATION SCHEDULE
------------------------------------------------
YEAR DEPRECIATION END-OF-YEAR ACCUMULATED
VALUE DEPRECIATION
---- ------------ ---------- ------------
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I did attempt it. I'm just extremely stuck and don't know how to move forward. My code is below:

import java.util.Scanner;
public class Depreciation_for
{
public static void main(String[] args)
{
Scanner keyboard = new Scanner(System.in);
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[Code] .....

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[Code] .....

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[code]...

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//The dataaccesslayer you should use for classes that deal with connection to the database

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import java.sql.DriverManager;
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[code].....

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[Code] .....

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<%
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[code]....

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Code :

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[Code] .....

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Nov 18, 2014

why I need to populate an array with leading zeros. It sounds like it wants me to populate the entire array for one number (string). When I use next(), it separates the numbers so why do I need to go the leading zeros route?

This assignment will give you practice with external input files and arrays. You are going to write a program that adds together large integers. The built-in type int has a maximum value of 2,147,483,647. Anything larger will cause what is known as overflow. Java also has a type called long that has a larger range, but even values of type long can be at most 9,223,372,036,854,775,807.The approach you are to implement is to store each integer in an array of digits, with one digit per array element. We will be using arrays of length 50, so we will be able to store integers up to 50 digits long. We have to be careful in how we store these digits. Consider, for example, storing the numbers 38423 and 27. If we store these at the front of the array with the leading digit of each number in index 0 of the array, then when we go to add these numbers together, we're likely to add them like this:

38423
27

To simulate this right-shifting of values, we will store each value as a sequence of exactly 50 digits, but we'll allow the number to have leading 0's. For example, the problem above is converted into:

0000000000000000000038423
0000000000000000000000027

Now the columns line up properly and we have plenty of space at the front in case we have even longer numbers to add to these.The data for your program will be stored in a file called sum.txt. Each line of the input file will have a different addition problem for you to solve. Each line will have one or more integers to be added together. Take a look at the input file at the end of this write-up and the output you are supposed to produce. Notice that you produce a line of output for each input line showing the addition problem you are solving and its answer. Your output should also indicate at the end how many lines of input were processed. You must exactly reproduce this output.

You should use the techniques described in chapter 6 to open a file, to read it line by line, and to process the contents of each line. In reading these numbers, you wont be able to read them as ints or longs because many of them are too large to be stored in an int or long. So youll have to read them as String values using calls on the method next(). Your first task, then, will be to convert a String of digits into an array of 50 digits. As described above, youll want to shift the number to the right and include leading 0s in front.

The String method charAt and the method Character.getNumericValue will be useful for solving this part of the problem.You are to add up each line of numbers, which means that youll have to write some code that allows you to add together two of these numbers or to add one of them to another. This is something you learned in Elementary School to add starting from the right, keeping track of whether there is a digit to carry from one column to the next. Your challenge here is to take a process that you are familiar with and to write code that performs the corresponding task.

Your program also must write out these numbers. In doing so, it should not print any leading 0s. Even though it is convenient to store the number internally with leading 0s, a person reading your output would rather see these numbers without any leading 0s.You can assume that the input file has numbers that have 50 or fewer digits and that the answer is always 50 digits or fewer. Notice, however, that you have to deal with the possibility that an individual number might be 0 or the answer might be 0. There will be no negative integers in the input file.You should solve this problem using arrays that are exactly 50 digits long. Certain bugs can be solved by stretching the array to something like 51 digits, but it shouldnt be necessary to do that and you would lose style points if your arrays require more than 50 digits.The choice of 50 for the number of digits is arbitrary (a magic number), so you should introduce a class constant that you use throughout that would make it easy to modify your code to operate with a different number of digits.

Consider the input file as an example of the kind of problems your program must solve. We might use a more complex input file for actual grading. The Java class libraries include classes called BigInteger and BigDecimal that use a strategy similar to what we are asking you to implement in this program. You are not allowed to solve this problem using BigInteger or BigDecimal. You must solve it using arrays of digits.Your program should be stored in a file called Sum.java.

Input file sum.txt
82384
204 435
22 31 12
999 483
28350 28345 39823 95689 234856 3482 55328 934803
7849323789 22398496 8940 32489 859320
729348690234239 542890432323 534322343298
3948692348692348693486235 5834938349234856234863423
999999999999999999999999 432432 58903 34
82934 49802390432 8554389 4789432789 0 48372934287
0
0 0 0
7482343 0 4879023 0 8943242
3333333333 4723 3333333333 6642 3333333333

Output that should be produced
82384 = 82384
204 + 435 = 639
22 + 31 + 12 = 65
999 + 483 = 1482
28350 + 28345 + 39823 + 95689 + 234856 + 3482 + 55328 + 934803 = 1420676
7849323789 + 22398496 + 8940 + 32489 + 859320 = 7872623034
729348690234239 + 542890432323 + 534322343298 = 730425903009860

[code]....

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