Store Data By Their Ascending IDs Using Java
May 8, 2013
I am making a program to read data from excel files and store them in tables by their IDs. I have managed to read all the data from excel files as a string and store them in a table. But my project is to store them in table by ascending IDs. I have created the comparator in another class but when i call it in the main class nothing happened. The data that I have to store is like the below:
ID Name Salary
50 christine 2349000
43 paulina 1245874
54 laura 4587894
23 efi 3456457
43 jim 4512878
The codes are below:
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
[URL] ....
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Dec 22, 2014
I am trying to make a programm that reads a word and display if the letters are in ascending order or not in ascending order(All kind of letters..capitals..etc). I have made a code but its not 100% correct.
My code:
class Main
{
public static void main(String args[])
{
System.out.print( "#Enter text : " );
String text = BIO.getString();
while ( ! text.equals( "END" ) )
{
if (text.equals("END"))
[Code] ....
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Jan 15, 2015
I am new to Java programming and how to store data in Java.....Here is a example:Unique number, description, qty in box, price...There are thousands of these in my list. What would be the best way to store them.
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Oct 28, 2014
I have a java query like this
query ="Select major_career.Major_Title, career.ISCOTitle,career.FS.... " //only partial,
// I swear the query is correct
resultSet = statement.executeQuery(query); //this executes it
relArr = new ArrayList<String>(); //don't worry it is intialized
In the code below I tried to store the resultset components into the arraylist
int j = 1;
while (resultSet.next()) {
while(j<=numberOfColumns){
relArr.add(resultSet.getObject(j).toString());
j++;
}
} // end while
I am not sure whether the arraylist is able to store the result set because when i try to display it like show below it only shows some rows and only the first column
Iterator it = relArr.iterator();
while (it.hasNext())
{
System.out.println(it.next());
I want to manipulate the resultset results in my program by copying the resultset values to other datastructures.
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Mar 21, 2015
I was wondering is there any data type that can store method?
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Sep 18, 2014
I am able to perform column operation but not able to perform row operation because i am not able to store data say a 2 matrix [][]. I need to store the data into a 2-D matrix. Here is my code:
Java Code:
import java.awt.List;
import java.io.BufferedReader;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.Scanner;
public class colRowRead {
[Code] ....
I tried something like that:
for(int i=0; i<rows; i++) {
for(int j=0; j<cols; j++){
matrix [i][j]=textFile.get(i).split(" ");
//System.out.println(matrix[i][j]);
}
}
*/ mh_sh_highlight_all('java');
File col.txt is like this:
Java Code:
5 9 7 1 5
3 6 8 6 8
4 6 7 8 9
9 8 3 5 7 mh_sh_highlight_all('java');
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Feb 5, 2014
i am newbie to servlet and m working on a project like online shopping. I have list of data items in my database and i am able to fetch and display the data from database but i want to know that how can i store these data items in ServletContext so that i can use use it frequently in other pages.
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Jan 1, 2015
I am trying to develop a new web application which takes in data from a form and stores data in a database.I have included all the three files join.jsp(the form which takes in data),reg.java(servlet) and JavaConncetDb(method which connects db and servlet). I get a 404 error when i try load the web application.
My file structure in eclipse
The error I am getting
join.jsp
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
[Code] .....
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Mar 17, 2015
public class InputFileData {
/**
* @param inputFile a file giving the data for an electronic
* equipment supplier’s product range
* @return an array of product details
* @throws IOException
*/
public static Product [] readProductDataFile(File inputFile)
throws IOException{
// YOUR CODE HERE
}
This code is meant to be used to read a text file and store the data in an array of type Product[]. I know how to read in a text file and have it sort it into an array, but I've never seen code laid out in this fashion before (specifically "public static Product[]", and I'm unsure how to work with "(File inputfile)". I've looked all over the place but can't find any examples of anything like this.
Also, the code given cannot be changed, as it's that code I have to work with.
I still don't understand how to use it as a whole. For example, do I read the file in the main and have this method read that in and output to the Product class? Do I read the file in this method? I can't work out how to make this work when I have to use this method.
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Dec 24, 2014
I want to create few forms in our project. I searched in web, All are PHP form Generator only not for any JSP. I could see one JSP form Generator Site. But the Content will store it in their Server. How to create Feedback form in JSP which will store the Data in Database directly.
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May 8, 2014
How i can get the data from a file, for a key that have multiple values without using split method and i want to store that data in an array
file name:"new.txt"[contains below data]
Name=google.com, yahoo.com,facebook.com
Attachment=abc1,abc2,abc3
I am successfully able to do this using following code
Properties props = new Properties();
String configFilePath = (Cjava_confignew.txt);
props.load(new FileReader(configFilePath));
String TestName = props.getProperty(Name);
String test[] = TestName.split(,);
Now i just want to store the values for key "Name" in array without using TestName.split(,); but i am not able to do this.
I have also used .yml file to avoid this but did not succeed, some way to do this
file name test.yml
Name
-google.com
-yahoo.com
-facebook.com
Attachment
-abc1
-abc2
-abc3
i want to store multiple values for single key(Name) within the array
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Oct 15, 2014
How would you efficiently store and access stats in Java?
Java Code:
Monster[Attacked].takeDamage[Attackers damage modified by Defenders defense] mh_sh_highlight_all('java');
The purpose is for something like that... Trying to work towards that.
How would you store the stats for units (hp, mp, strength, defense, etc.) ?
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Jul 16, 2014
i want to store and retrieve thumb impression from a database using java.now i am learning java so i want to do the coding using java.i want to know which database is used to store thumb impressions ?
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May 6, 2014
I have not a clue how to convert this to ascending from its current descending....
class Node
{
private int iData; // data item (key)
//-------------------------------------------------------------
public Node(int key) // constructor
{ iData = key; }
//-------------------------------------------------------------
public int getKey()
{ return iData; }
[Code] .....
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Dec 22, 2014
I am trying to make a program that reads a word and display if the letters are in ascending order or not in ascending order(All kind of letters, capitals ). I have made a code but its not 100% correct. My code:
class Main
{
public static void main(String args[]) {
System.out.print( "#Enter text : " );
String text = BIO.getString();
[code]...
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Apr 27, 2014
I need to put my scores in ascending order how do i do that?
public static void main(String[] args) {
char[][] answers = {
{'A', 'B', 'A', 'C', 'C', 'D', 'E', 'E', 'A', 'D'},
{'D', 'B', 'A', 'B', 'C', 'A', 'E', 'E', 'A', 'D'},
{'E', 'D', 'D', 'A', 'C', 'B', 'E', 'E', 'A', 'D'},
{'C', 'B', 'A', 'E', 'D', 'C', 'E', 'E', 'A', 'D'},
[Code] ....
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Sep 27, 2014
I'm not looking for answers, well I am.. but not just straight given to me. I'm trying to learn but for this program I'm not even sure where to start. One step looks like this:
O *******
/| * *
/ * *
************
It must increase by a constant named STEPS. They ascend from left and go up right.
I'm just gonna start asking some questions I guess. Before I do anything I wanted to know whether I should have the stick man on the step drawn out with print and println statements or try to have him drawn with a loop as well? I'm not sure if my teacher wants everything drawn by characters with loops for each character, or if I can do print statements and draw the stick figure plus some stars and have a loop for multiple characters at once.
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Apr 10, 2014
I am sorting an array in ascending and descending order. I am using the nethods in Arrays as below
Arrays.sort(myArray)
I want to print both input and output array in sysout.
Object[] ipArray = [45,8,32,41,11,7];
Object[] opArray;
Object mArray = ipArray;
Arrays.sort(mArray); This is changing the ipArray too ?
How can I get my input array unmodified ?
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Aug 9, 2014
tfrreee i want to display given series in ascending order in java prog here is an error : E:Javajdkin>java ascend 505671Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 7 at ascend.main(ascend.java:9)
Java Code:
class ascend
{
public static void main (String args[])
{
int s[]={ 50,71,81,21,7};
int i;
for(i=0;i<=s.length;i++)
[Code]...
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Mar 21, 2014
For example, if i am given 9864
Imust output 4689
Without use of arrays.
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Apr 5, 2014
I am trying to write a program and the name variable can only store letters,dotes and spaces. But whenever I enter a space, the program doesn't work. Following is my code.
import java.util.Scanner;
import java.util.*;
public class Space {
public static void main(String []args) {
Scanner reader = new Scanner(System.in);
[Code] ....
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May 12, 2015
Write a java program to store employee information in a linked list, the program should implement the following functions:
The program should display the list of functions, and ask the user to enter the number of function that he/she wants to do, then perform the function as it is required in the previous table.
import java.util.*;
public class Employee {
Scanner in = new Scanner(System.in);
String Name;
String Address;
String Department;
int ID;
int Salary;
[code]....
this is my out put
Please choose a number:
1-Add a new employee
2-Update employee's info
3-Remove employee's info
4-Exit
1
Enter name:
Enter address:
2
Enter department:
3
Enter ID:
4
Enter salary:
now:
1- why are not my adding coming out in the output only the Enter name & Enter address ??
2- how can I add names and ID's and information to test that program
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Oct 15, 2014
I am writing a program that grab user input number which represent beats per minute separated by commas. It then parses the numbers and reorders them from smallest to largest and then outputs the average, medium, maximum and minimum number all in separate lines. I am having trouble getting the array to sort the input from smallest to largest. It is currently only working for 3 numbers inputted. Anything more will not reorder it.
/*
* To change this license header, choose License Headers in Project Properties.
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* and open the template in the editor.
*/
/*
* 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 heartrate;
import java.util.Scanner;
import java.util.Arrays;
[Code] ....
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Apr 7, 2014
How do u copy all the elements in an array eg A into another array eg B? This is the question:
An array A contains integers that first increase in value and then decrease in value,
For example, 17 24 31 39 44 49 36 29 20 18 13
It is unknown at which point the numbers start to decrease. Write efficient code to code to copy the numbers in A to another array B so that B is sorted in ascending order. Your code must take advantage of the way the numbers are arranged in A.
This is my program:
This is the error message:
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException
at java.lang.System.arraycopy(Native Method)
at Quest30.CopyAndSortArray.main(CopyAndSortArray.jav a:16)
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Nov 12, 2014
I am writing a program that is supposed to take 3 numbers inputted by the user and sorting them out in an ascending order. I believe my code is correct but can't figure out why the program isn't behaving as expected.
import java.util.*; //Required to use the scanner console
public class Week3_Programming_Problem
{
static Scanner console = new Scanner(System.in); //Allows for user input
public static void main(String[] args)
[code]....
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Oct 21, 2014
I couldn't where the problem with this code. The question is : (Write a program that reads in nine integers and sorts the value in the ascending order. Next, the program restores the sorted integers in a 3 x 3 two-dimensional array and display the integers as shown in the result.) And this how i did it:
package test1;
import java.io.*;
import java.util.*;
public class test1{
public static void main(String[] args){
int[] hold = new int [9];
Scanner sc = new Scanner(System.in);
System.out.print("Enter 9 integers, press <Enter> after each");
{
for (int i = 0; i < hold.length; i++);
[Code] ....
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