How To Get The Value Like Numbers From Column Of Table And Get Sum Or Total
May 5, 2014Is it possible to get the value(like numbers) from column of table and get sum or total?
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How To Merge Two SQL Table Columns Into One JTable Column
Sep 5, 2013I have a database table containing two columns A and B. They both contain integers. I'd like to know if it's possible, when displaying them in a JTable, to be combined in one column X. I still need, however, to be able to distinguish them from each other when selecting a row from the JTable. E.g. to store each of the values in a a separate variable. Maybe I can combine them when reading from the ResultSet and use some sort of delimiter ? But how?
View Replies View RelatedSwing/AWT/SWT :: Check Boxes On First Column Of Table
Sep 10, 2014From what I can determine check boxes are applied in SWT to the first column only of a table.
final Table table_project = new Table(g3_tabfolder_projects, SWT.BORDER | SWT.CHECK);
However I require check boxes on all cells. I tried creating a table for each column (which gives me my check boxes) but as the number of enries are often numerous and thus require vertical scroll the tables become out of sync (and to the user that sync is important).
Before I knock up some code to try and synchronise the tables I just wanted to check any alternative approaches. The project is SWT based.
How To Make A Table - Put Label For Each Column To Identify What Values Are
May 27, 2014So I just processed this rectangular array and made myself a table. I want to put a label for each column to identify what the values are. My attempt at this failed miserably, because it looks horrible. Here is the necessary code.
Java Code:
System.out.println();
System.out.println("FORMATTED RESULTS");
System.out.println(results);
values[rowCount][0] = currency.format(monthlyInvestment);
values[rowCount][1] = percent.format(interestRate/100);
values[rowCount][2] = Integer.toString(years);
values[rowCount][3] = currency.format(futureValue);
rowCount++;
[Code] .....
If you are to compile this yourself, you would see the horrible output at the end. I would like to know how to properly align each label with its corresponding column.
JSP / JSTL :: Adding Column With Checkboxes For Each Record In Table?
Mar 18, 2013How I can add a column with check boxes for each record in my table in JSP? Also, I want to figure out a way that what records the user has checked!
View Replies View RelatedJavaFX 2.0 :: Handle Table Column Re-position / Movement Event
Sep 4, 2014How to catch the event when table view's column are re-positioned. Basically when the column is re-positioned from 1 position to 5 position , i want to do update the db.
View Replies View RelatedNumbers After Decimal Won't Add Together For Total
Sep 26, 2014The code is below and the problem I am having is the numbers after the decimal won't add together for the total I am teaching myself java through liang's 10th edition book and I took one of the sample programs further than what was shown. The one in the book only shows the tax amount I simply wanted to make it so that the purchase amount and the tax amount would add together
package javalearning;
import java.util.Scanner;
public class FindingTax {
public static void main(String[] args){
Scanner input = new Scanner(System.in);
System.out.print("Enter Purchase amount: ");
[code]....
Swing/AWT/SWT :: How To Make One Auto-increment MySQL Table Column Invisible
Dec 8, 2014The problem is that I populate the table with autoincrement primary key. I don't want it to be visible. I have been googling for hours to find no solution. It seems that sql/mysql provides no solution by selecting all table columns except one. So I wonder, how I could overcome this problem. Here is some of my code:
public void tableChanged(TableModelEvent e) {
int row = e.getFirstRow();
int col = e.getColumn();
model = (MyTableModel) e.getSource();
String stulpPav = model.getColumnName(col);
Object data = model.getValueAt(row, col);
[Code] .....
The ID is used in
stmt.addBatch("update finance.fin set " + stulpPav + " = " + duom
+ " where ID = " + studId + ";");
I tried to omit ID from my SELECT statement, I tried to put Date as a first element in data[iEil][0] but neither options were successful. Data hasn't been changed in database. NOW, everything works fine, except I don't want ID column to be visible in my table.
How To Insert Value Into SQL Server Table Column Of Data Type Datetime With JDBC
May 8, 2014How can insert value into sql server column of data type 'datetime' with jdbc the methods in java.sql are 'setdate()' and 'setTime()'
How can I do this. I'm using java.time.LocalDateTime.
JSF :: Unable To Set Prime-faces Data Table Column FilterMatchMode In Managed Bean
Nov 13, 2014I have a requirement where in my primefaces datatable ,the filterMatchMode attribute(like any part of field,whole field) needs to be selected by the user by select menu .
To achieve this i have declared a variable in my viewscoped managed bean as filterCriteria and set the filterMatchMode attribute as filterMatchMode="#{beanName.filterCriteria}".The bean variable is getting set in the managed bean on submit but the filtering is not happening,i am getting empty message.
Also when i remove the keyed in value from filter box the data table is not restored which otherwise must be restored in normal situations. I have used and modified the example code given in primefaces showcase here.The code snippet is as below
<h:form id="tblFrm">
<h:selectOneMenu id="filterOptions"
value="#{dtFilterView.filterOption}" required="true"
requiredMessage="You must select an option!">
<f:selectItem id="hd1" itemLabel="Select" itemValue="#{null}" />
[code]....
For Loop - Calculate Total Of Series Of Numbers?
Nov 10, 2014So basically, I've been trying to create a for loop that asks the user for a number between 1 and 30, then calculates the total of the series of numbers. For example, if 15 is entered, the calculation should be 1/15+2/14+3/13+...15/1 which would equal approximately 38.1. The problem I'm having is that the code doesn't loop whenever I type a number for some reason, which results in a very incorrect calculation. Here is my code so far:
import java.util.Scanner;
public class HmwLoop {
public static void main(String[] args) {
double sum = 0;
for (double num1 = 1, num2 = 30; num1 <= 30 && num2 >= 1; num1++, num2--)
[Code] .....
How To Add Numbers In A Column In Multidimensional Array
Mar 13, 2015import java.util.Scanner;
public class ColumnSum {
public static void main(String[] args) {
Scanner s = new Scanner (System.in);
int userpick = 0;
int sum = 0;
int [][] matrix = {{5, 9, 87, 74, 12, 7}, // row 1
[code]...
Right now my code gets all the numbers in a row and adds those up, but I want it to get the numbers in a column and add them instead. The problem is I don't know how to get the userpick (the number that the user picks to determine which column gets added) to be set to that particular column.
Adding Fractions - Loop For Calculating Total Of Series Of Numbers
Mar 8, 2014I'm just not noticing why it won't display the answer. I'm trying to solve this book problem......
"Write a for loop that calculates the total of the follower series of numbers:
1/30 + 2/29 + 3/28......+30/1"
Here is what I have..
public static void main(String[] args) {
double total = 0;
for (double a = 1, b = 30; b < 1; a++, b--) {
total += (a / b);
}
System.out.println(total);
}
}
When launched, the output is 0.0. I tried changing the variables a and b to doubles but didn't change anything...
Adding Numbers In Table?
Mar 11, 2014how can I add the numbers in quantity where it will automatically put in total?
im using netbeans.
just want the codes for how to add the listed quantity?
Cannot Get Numbers To Switch To The Other Side Of Table
Oct 23, 2014I was making this program and I ran into an issue which is that I cant seem and understand how to get the numbers to go to the other side of the table
I had to make a program that converted 1-9 miles to kilometers and the other side 25-65 (increments of 5) kilometers to miles and thats the part I am having trouble with.
Here is what I have so far
import java.util.Scanner;
public class MilesAndKilos {
public static void main(String[] args) {
int miles;
double kilometers=1.60934;
[Code] ....
and this is how I want it to look
MilesKilometersKilometers Miles
1 1.609 | 25 12.430
2 3.219 | 30 15.538
3 4.828 | 35 # here
4 6.437 | 40 # here
5 8.047 | 45 # here
6 9.656 | 50 # here
7 11.265 | 55 # here
8 12.875 | 60 37.290
9 14.484 | 65 40.398
How To Get Total Number Of Pennies In Dollar Amount For The Output Of Total Pay
Mar 28, 2014 I cannot get the right output for my program. I need to get the total number of pennies in dollar amount for the output of Total Pay. This is my program. The directions are:
Write a program that calculates the amount a person would earn over a period of time if his or her salary is one penny the first day, two pennies the second day, and continues to double each day. The program should then show the total pay at the end of the period. The output should be displayed in a dollar amount, not the number of pennies. Do not accept a number less than 1 for the number of days worked.
import java.util.Scanner;
import java.text.DecimalFormat;
public class PenniesForPay {
public static void main(String[] args) {
int numDays;
[Code] ....
totalSalary should be total number of pennies / 100....However its not picking up only day 30 of pennies which is 536,870,912 pennies and then dividing it?
Calculate Total Price And Display Total In Order Class
Oct 11, 2014I'm struggling with inheritance in my assignment. The assignment states that I should use the calculatePrice() to calculate the total price and use another method to display the total. The I must overload the calculatePrice() and add a fee in the SpeedOrder() class.
My main class
package useorder;
import javax.swing.*;
public class UseOrder {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
Order.display();
[Code] .....
The problem is mainly displaying the TotalPrice field and. I can't display TotalPrice if it's not static but if it's static I can't inherit it to the SpeedOrder class to assign the total in the overloaded calculateprice method. How can I display the total in my order class and use it in my SpeedOrder class?
Sum Elements Column By Column
Oct 21, 2014Write a method that returns the sum of all the elements in a specified column ina matrix using the following header:
Public static double sumColumn(double[][] m, int columnIndex)
Write a test program that reads a 3 by 4 matrix and displays the sum of each column.
import java.util.*;
public class SumColumns {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
final int ROW = 3;
final int COLUMN = 4;
[Code] .....
Make Date Column Show Only Date And TimeIn And TimeOut Column Only Show Time
Mar 11, 2014How do i make the 'date' column show only the date and 'timeIn' and 'timeOut' column only show the time. In my database table my 'date' column is a date type and 'timeIn' and 'timeOut' column is time.
View Replies View RelatedJavaFX 2.0 :: How To Define Cell In The Table By Table Event
Mar 23, 2015How to define Cell in the table by table event?
I need to process one component drag to the table. I misunderstand, how I can see to which Cell fall the component. I tried to use Event and Mouse event handlers in my custom Cell, but they do not work. I can copy the drag event to the table and table handles it, but how to get needed Cell I cant understand.
Adding Data In Table But The Table Is In Another Frame
Mar 13, 2014This is my codes in a button that if I click it . that information will send to Jtable but the problem is the jtable is in another frame so how can i connect this ?
DefaultTableModel model = (DefaultTableModel)
new admin().tableBagtags.getModel();
if (txtName.getText().equals("")) {
JOptionPane.showMessageDialog(null, "Please fill out all fields.", "Error!", JOptionPane.ERROR_MESSAGE);
[Code] .....
JSF :: Unable To Add Mysql Table Columns To Table
Apr 29, 2014I'm trying to add some mysql table columns to JSF table. And I'm getting error:
/index.xhtml: The class 'logon.User' does not have the property 'description'.
User.java
package logon;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
[Code]...
Long Type Output File - Print Prime Numbers Between Given Range Of Numbers
Aug 22, 2014I tried to create file and write the output of my program in it in java when i use WriteLong then the file does not contain long value, how I create this file my program is to print prime numbers between 500000 to 10000000
public class primenumber {
public static void main(String[] args) {
long start = 5000000;
long end = 10000000;
System.out.println("List of prime numbers between " + start + " and " + end);
for (long i = start; i <= end; i++) {
if (isPrime(i)) {
System.out.println(i);
[Code] ....
Generate 100 Numbers Using Arrays - Sort Even Numbers Into Separate Array And Display Both
Apr 24, 2014I've just written a program that generates 100 numbers that range from 0 ~ 25 using arrays, the program calls another method that sorts the even numbers into a separate array and returns the array. I need it to display both arrays, however, when I run my program, the numbers of both arrays are mixed together, and I'm not sure how to separate them.
[ public class Array1
{
public static void main(String[] args)
{
int array [ ] = new int[100];
for (int i = 0; i < array.length; i++)
{
array[i] = (int) (Math.random() * 26);
[Code] .....
Print 2 Lists - 20 Random Numbers And Another List Without Duplicate Numbers
Feb 1, 2015I'm trying to make a program that generates 20 random integers between 1 and 20 and then prints the list of random numbers to the screen. After that, I want to print a different list to screen with the same numbers from the first list only skipping any number that has been already printed to the screen. So two lists are printed to the screen. The first one has 20 random numbers. The second one has those same 20 numbers but only prints the numbers in the first list that aren't duplicated. So if m
y list of 20 random integers contains three 2s and two 14s, only one 14 and one 2 is printed to the second list. Currently, my code generates 20 numbers from 1 to 20 and stores those numbers in an array but I don't know how to print solve the second part of my problem. I don't know how to print the s different list only without duplicate numbers. As a result, my output is nothing because it doesn't print any number from the first list as oppose to skipping only duplicate one.
public void randomNum(){
System.out.println("Twenty random integers: ");
int max = 20; // max value for range
int min = 1; // min value for range
Random rand = new Random();
int[] all = new int[20];
[Code] ....
User To Enter 10 Numbers And At The End Prints Out Distinct And Non-repeated Numbers
Nov 23, 2014I have to make a program that prompts the user to enter 10 numbers and at the end it prints out the distinct numbers and then the other numbers that weren't repeated...
I have the part where it prints out the distinct numbers but I stuck on how to make it print out the other numbers that didn't repeat...
import javax.swing.JOptionPane;
public class DistinctNumbers {
public static void main(String[] args) {
String getInput;
int input;
int[] numbers = new int[10];
[Code] ....