How To Get Values To Display One At A Time On New Lines
Feb 16, 2014
I am just displaying my values in different ways and I can't seem to get my values to display one at time on new lines. I dont know why that isn't compiling. The part i am having trouble with has the "Not Working" tag in the code.
[highlight=Java]
//Trying to figure out how to use /n
public class Test
{
public static void main(String[] args)
{
int gold= 5;
int silver= 3;
int bronze= 1;
[Code] ......
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Jul 1, 2014
Using JOptionPane, I want to display in one window:
1: ***
2: *****
etc
where 1 is the element of the array, and the * are a percentage calculated in a loop. My variables are all being input fine, but the output is 100+ windows:
1:
*
*
*
2:
*
The CLI way would be with print() and println(), but I'm having a tough getting it to be visual.
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Apr 7, 2013
I am trying to write a java code for a homework problem in my intro java class but im having problems. This is the problem:
Write a program that open the MyFile.txt and read from a file with these criteria.
1)-The program should display the first five lines of the file’s contents only.
2)-If the file contains less than five lines, it should display the file’s entire content. You must check for end of file and less than 6 lines on the loop iterations.
3)- your program should use loop to read the line by line of the file MyFile.txt.
The serperate myfile.txt has this
I can still remember, at the end of that year, we sat for the last time in our circle together. She played us her favorite song, "like a bridge over troubled water" and quietly passed out a gift she had made for each of us.She had made each of us a pottery heart with our name and the date on it on the back each read "I believe in ME".We all cried including her. She told us she would always remember US. We believed she would.
and this is what the code is suppose to look like after you run it : Java33.png
And this is what i have so far : Java22.png
what needs to go next to complete the javascript to show the first 5 lines of the text files?
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Feb 14, 2014
How to solve the following task:
Design a programto display the followingSchool Time Table on screen.
Capture.PNG
Yourprogram should use thefollowing named constants tocontrol theformat of the calendar display:
/*Thenumberofdaysinthemonth*/
privatestaticfinalintDAYS_IN_MONTH=31;
/*Thedayoftheweekonwhichthemonthstarts*/
/*(Monday=0,Tuesday=1,andsoon)*/
privatestaticfinalintDAY_WEEK_STARTS=0;
/*Thewidthinpixelsofadayonthecalendar*/
privatestaticfinalintDAY_WIDTH=40;
/*Theheightinpixelsofadayonthecalendar*/
privatestaticfinalintDAY_HEIGHT=30;
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Apr 15, 2014
I am attempting a programming exercise to display the values in the Fibonacci sequence from F0 to F15. I understand the concept, but, for some reason my equation is simply creating a resulting string of numbers that simply increase by 2's. As, I know it is supposed to be the sum of the previous F and the F that precedes that one to total the new F number. It seems so simple yet I seem to be far off. As usual, I have worked my code for your review.
/*
* This program calculates the "Fibonacci sequence."
* A "sentinel" is used to limit the extent the calculation.
*/
import acm.program.*;
public class bookFibonacciTest2a extends ConsoleProgram {
/* Specifies the limit value of the calculations */
private static final int SENTINEL = 16;
public void run() {
println ("This program display Fibonacci sequence numbers 0 - 15.");
[Code] .....
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Sep 13, 2014
I am writing a program that accepts input from the user, I want default values displayed before the input values.
Java Code:
public surfboards() {
surfboardType = "Type not assigned";
shaperName = "Shaper not assigned";
constructionType = "Construction Type not assigned";
surboardSize = 0D;
} mh_sh_highlight_all('java');
I can get the output to display as shown below
(THIS IS WHERE I WANT DEFAULT CONSTRUCTOR DISPLAYED. Currently not displayed)
Type not assigned
Shaper not assigned
Construction Type not assigned
0 Feet
(THIS IS WHERE I WANT DEFAULT CONSTRUCTOR DISPLAYED. Currently not displayed)
input:
Java Code:
Enter Surboard Type:
test
Enter Shaper Name:
test
Enter Surfboard Construction Medium:
test
Enter Surfboard Size:
6.5 mh_sh_highlight_all('java');
Output:
test
test
test
6.5 feet
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Dec 4, 2014
The program contains username and password which on submission checks with the database if the details entered are right or wrong....on right details it Displays Welcome (name) and (lastname) parameters from database.
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Mar 21, 2011
I am new to jsp .i created a wepage in jsp. That's i need to create dynamic textboxes in jsp and want to display the values of the textbox in next page.
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May 4, 2014
I've written a die program, and i want the user to type any key in order to continue, how do i achieve this ?
I have already created a Die class, i just want to implement the main method now.
PHP Code:
package test;
/* This program demonstrates the use of a user-defined class
public class RollingDice {
// Creates two Die objects and rolls them display the values.
public static void main (String[] args) {
Die die1 = new Die();
System.out.println("Roll the die ")
}
} mh_sh_highlight_all('php');
What should i add after System.out.println, So that the user types (any key, or types "Enter" for example, for the die to roll). i dont want the die to roll by itself i Want the user to interact with the program in order for it to roll.
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Apr 8, 2014
I've been trying to learn how to read in file input and have a question about this piece of code:
Java Code:
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Scanner;
public class readFile {
public static void main(String args[]) throws FileNotFoundException{
File file = new File("file.txt");
int sum[]=new int[5];
int i=0;
[Code] .....
"file.txt" holds the following information:
1
2
88
42
56
89
But my output looks like:
2
42
89
if I take out sum[i]=input.nextInt(); it will display all values in the file.
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Mar 25, 2014
Dice are used in many games. One die can be thrown to randomly show a value from 1 through 6.
Design a Die class that can hold an integer data field for a value (from1 to 6).
Include a constructor that randomly assigns a value to a die object. Appendix D contains information on generating randomnumbers. To fully understand the process, you must learn more about Java classes and methods. However, for now, you can copy the following statement to generate a random number between 1 and 6 and assign it to a variable. Using this statement assumes you have assigned appropriate values to the static constants.
randomValue = ((int)(Math.random() * 100) % HIGHEST_DIE_VALUE +
LOWEST_DIE_VALUE);
Also include a method in the class to return a die's value. Save the class as
Die.java.
Write an application that randomly "throws" two dice and displays their values. After you read the chapter Making Decisions, you will be able to have the game determine the higher die. For now, just observe how the values change as you execute the program multiple times. Save the application as TwoDice.java.
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Apr 2, 2015
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.
My code is below:
Map<String, String> CertificatesNames =
new HashMap<String,String>(selectedCertificates.size());
CertificatesNames.put("AA", "Certificate A");
CertificatesNames.put("BB", "Certificate B");
CertificatesNames.put("CC", "Certificate C");
for(String key1: selectedCertificates) {
System.out.println(CertificatesNames.get(key1));
}
I want to display in my jsf page :
Certificate A
Certificate B
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());
So how to do this?
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Jan 27, 2014
I have a program in which I am prompting users for integer values to display in a JFrame. I call the method below to load an array with their input:
Java Code:
public String inputAssembly(){
if (!jtfInput.getText().matches("d")){
JOptionPane.showMessageDialog(null, "Input must be of integer value.");
} if (jrbFar.isSelected()){
return jtfInput.getText() + jrbFar.getText();
[Code] ....
Regardless of the input, both messages display (invalid input / got it). I've tried debugging so I know that the values are getting entered and read correct, at least to my knowledge. It is a very simple regular expression, only checking to be sure an integer was entered.
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Feb 13, 2014
I have the following simple "selectManyCheckbox" specified in my jsf page:-
<h:selectManyCheckbox id="animalsmc" layout="pageDirection" value="#{animalSelectionBean.selectedAnimals}">
<f:selectItem itemValue="1" itemLabel="Lion"/>
<f:selectItem itemValue="2" itemLabel="Tiger"/>
<f:selectItem itemValue="3" itemLabel="Elephant"/>
<f:selectItem itemValue="4" itemLabel="Eagle"/>
<f:selectItem itemValue="5" itemLabel="kangaroo"/>
</h:selectManyCheckbox>
I have the following specified in my bean class:-
private int [] selectedAnimals;
...
public int[] getSelectedAnimals() {
return selectedAnimals;
}
public void setSelectedAnimals(int[] selectedAnimals) {
this.selectedAnimals = selectedAnimals;
}
I would like to know how to display the values of selected checkboxes on the JSF page after submitting the form? I tried outputtext, however it displays the object and not the values. I cannot even frame the outputformat for the same.
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Oct 21, 2014
Write a program that reads a sequence of input values and displays a bar chart of the values, using asterisks, like this:
********************** **************************************** **************************** ************************** **************
You may assume that all values are positive. First figure out the maximum value. That value's bar should be drawn with 40 asterisks. Shorter bars should use proportionally fewer asterisks.
import java.util.Scanner;
import java.util.ArrayList;
import java.util.Arrays;
public class Array717
{
public static void main( String[] args )
[Code] ....
The problem is that all this code does is print 1 line of *'s and what seems to be thousands of them
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Feb 9, 2015
I am working on an assignment that I can't seem to figure out the final part to. The program takes in course data such as the time the class starts and how long it lasts. The time is in military time (0000 - 2400)
I need the output time to be the time the class started, plus the length of the class, and displayed in military time.
for example,
Start Time = 0930
Length = 50 minutes
Endtime = 1020
I can't for the life of me figure out how to do this. I have gotten a program that works for this time and minutes, and displays the correct 1020. But when I change the information to say
Start time: 0700
Length = 90 minutes
I get:
Endtime = 90
90 is technically correct, the way the formula is setup, but I need it to display 0900 not 90.
Here is the code that I have. Be easy, I'm still learning, and this is just the file I created to get the formula to work. Also, the verbose in here is just for my own debugging to make sure values should be what I'm expecting them to be.
public class calc
{
public static void main(String[] args) {
double hours, minutes, length;
double temp;
int time = 2400;
hours = time / 100;
System.out.println("Hours are: " + hours);
[Code] ....
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Jan 29, 2014
I have two classes. time_runner is used for testing my code.
This is what I'm using to test my code:
class time_runner
{
public static void main(String str[]) throws IOException {
Time time1 = new Time(14, 56);
System.out.println("time1: " + time1);
System.out.println("convert time1 to standard time: " + time1.convert());
System.out.println("time1: " + time1);
System.out.print("increment time1 five times: ");
time1.increment();
[code]....
The two constructors are "Time()", which is the default constructor that sets the time to 1200, and "Time(int h, int m)" Which says If h is between 1 and 23 inclusive, set the hour to h. Otherwise, set the hour to 0. If m is between 0 and 59 inclusive, set the minutes to m. Otherwise, set the minutes to 0. Those are my two constructors that I pretty much have down. The three methods however I'm having trouble with. The "String toString()" Returns the time as a String of length 4. The "String convert()" Returns the time as a String converted from military time to standard time. The "void increment()" Advances the time by one minute.
public class Time {
private int hour;
private int minute;
public Time(int h, int m) {
if(h > 1 && h < 23)
hour = h;
[code]....
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Jan 29, 2014
If you were given a problem to search for an error in a section of code but it is incredibly long, what are some ways you can go through the lines of code quickly?
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Dec 19, 2008
I'm working or better say.. I'm trying to work :) with Maven projects (m2eclipse plug-in) and Eclipse IDE. The problem I have is that sometimes the debugger seems to skip some lines of the code without a reason.
Is there an issue of synchronisation with my .class files?
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Jan 21, 2015
I have this part of the file.
class CreateFile implements ActionListener{ // MailOrderCreateFile.java
@Override
public void actionPerformed(ActionEvent ae){
String getDestination = txtDestination.getText();
file = new File(getDestination); // needed for Creating and Displaying the file
currentTime = txtCurrentTime.getText();
try {
FileWriter fw = new FileWriter(file);
[Code]...
What I wanted to do is that every time I press the button that will activate this part of the code, it will write to a .txt file defined in my txtDestination var (a JTextField). After the first time the file was created, it must append a new line every succeeding presses. However, everytime I do this, it just simply overwrites the contents of the .txt file. The example output would have been like this:
First time.
O R D E R D E T A I L S:
Time ordered: 01/21/2015 Wed 10:21:54 PM
Item number: 10
Item price: $4.59
Quantity ordered: 12,321
Total: $56,553.39
[Code]...
I've tried createDetails.write but to no avail.
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Jul 19, 2014
This what the data file looks like -
5165168416516988798484984984984984
9898798798798
1556516846516518498
51688484979789798798798491
The problem was to make code which will combine consecutive lines which contain some data into one line and print it. I made a solution that works.
import java.io.File;
import java.io.FileNotFoundException;
import java.util.NoSuchElementException;
import java.util.Scanner;
public class Filez {
public static void main(String[] args) {
File file = null;
[code]...
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Oct 24, 2014
A friend and I are working on a project in which we must test "super anagrams" (anagrams in which all characters in the first string are found in the second). We have a driver and definitions class pasted below:
Definition
class SuperAnagram{
String left = new String("");
String right = new String("");
[code]....
In the driver class, we get "cannot find symbol" errors at the beginning of cleanStrings and isSuper, both inside and outside of the if statement.
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Feb 10, 2014
I'm using the Spring Layout Manager to put a form in a JPanel and I'm trying to center the lines horizontally so they will stay centered when the window is resized. Nothing I've tried has worked, I can't find anything on the web, and even my fallback of seeing how Netbeans does it fails as Netbeans doesn't seem to support the Spring Layout.
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May 24, 2015
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,
line 1 data:5 1 1 1 2 1 3 1 1
line 2 data:5 4 4 5 7 10 3 2 1
try {
File f1 = new File("C:/users/User1/Desktop/Datasets/Dataset.txt");
String filename = f1.getAbsolutePath();
FileReader reader = new FileReader(filename);
BufferedReader br1 = new BufferedReader(reader);
[Code] .....
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May 21, 2014
I have a text file with the below details and we get the input as name CONNECTION_PORT and we need to delete the matching global variable which as CONNECTION_PORT and keep the remaining global variable in file without using any temp files.
for example
input:
CONNECTION_PORT
Text file
<globalVariable>
<name>CERTIFICATE_PASSWORD</name>
<value>fgfdgfgf</value>
<deploymentSettable>true</deploymentSettable>
<serviceSettable>false</serviceSettable>
<type>Password</type>
<modTime>1398834966045</modTime>
[code].....
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Feb 6, 2015
Lets say this txt file contains 2 lines.
---------
hello
bye
---------
What would i have to do to insert a a piece of text in between hello and bye? I would like for the it to search for "hello", then add a line after it so it would look like :
-------
hello
newtext
bye
-------
I have these 2 methods that work as intended, but i just cannot seem to do what i've stated above.
Java Code: /**
* @param location
* Location of the .txt file.
* @param text
* The String to search for in the .txt file.
[Code] ....
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