Can I assign multiple values to one variable? For example I want myNum = 0 thru 9 you see im trying to program a password checker program to verify that the password meets all the criteria 8 char long, 1 upper case, 1 lower case, 1 numeric, 1 special, and don't contain and or end
How do I assign job in the scriplet like how we do <% String job = request.getParameter("job")%> but on the same page? <% String job = request. getParameter("job")%> returns null value.
At first I wanted to just use an array and set each day a value, however I was told that it has to be stored as a string.
Design and implement the class Day that implements the day of the week in a program. The class Day should store the day, such as Sun for Sunday. The program should be able to perform the following operations on an object of type Day:
A. Set the day. B. Print the day. C. Return the day. D. Return the next day. E. Return the previous day. F. Calculate and return the day by adding certain days to the current day. For example, if the current day is Monday and we add four days, the day to be returned is Friday. Similarly, if today is Tuesday and we add 13 days, the day to be returned is Monday. G. Add the appropriate constructors. H. Write the definitions of the methods to implement the operations for the class Day, as defined in A through G. I. Write a program to test various operations on the class Day.
import java.util.*; public class Day { static Scanner readinput = new Scanner(System.in); String day; public Day(String day) {
[Code] ....
So right now if I run my code it allows me to type in a day, then it gives me the next and previous day, the last part is to add X days to it. Ideally I would like to be able to take the day entered, depending on the day set a numeric value, then add prompt for number of days you want to add. The program should then use modal (%7 ) to add value to the value that was given based on the day, and then translate it back into a String value (the day).
I need the user to be able to input a number, and for the program to assign this value to an 'int' variable. I know how to do this with a 'string' variable:
Java Code:
String options = JOptionPane.showInputDialog(null, "In your decision, how many options do you have? " +" (NOTE: The maximum number of options = 5, and you must enter your answer as a numeral.)"); mh_sh_highlight_all('java');
But I need to know how to do this with an 'int' variable.
simple assignment of values to a previously initialized object?
See the method useModel ()
The idea is, assign the values to the temporary object, data
Then plunk it into this statement:
model.addRow ( data );
Simple enough?
I've been putzing with the syntax for multiple hours, over days, now.
With and without
[0];,
Netbeans keeps giving me: Illegal start of expression data is declared as an array of Object, although, in this case, it does not need to be an array. What is the correct syntax?
i am trying to assign unique values to nodes read from XML file.. eg: consider this XML file:
<breakfast_menu> <food> <name>Belgian Waffles</name> <price>$5.95</price> <description> ...Strong Belgian waffles...</description> <calories>650</calories>
[code]....
now assigning these nodes "a unique value" has to be done following the LSDX labelling pattern i.e:
To the document element we first give an “a”.As there is no parent node for the document element, we assign “0” at the front of that “a” . “0a” is the unique code for the document element (breakfast_menu). For the children nodes of “0a”, we continue with the next level of the XML tree which is “1” then the code of its parent node which is “a” and a concatenation “.” . We then add a letter “b” for the first child, letter “c” for the second child, “d” for the third child and so on.Unique codes for children nodes of “0a” shall be “1a.b”, “1a.c”, “1a.d”, etc.Hence foe the above given XML the mapping would look something like this:
0a breakfast_menu 1a.b food 2ab.b name 2ab.c price 2ab.d description 2ab.e calories 2ab.f chef 3abf.b chef1 3abf.c chef2 1a.c food 2ac.b name 2ac.c price 2ac.d description 2ac.e calories 2ac.f chef 3acf.b chef1 3acf.c chef2
For more samples about LSDX labelling : 1.) Section 3.1 LSDX Labelling on this link: [URL]
2.) Fig 3 on page 1189 on this link:[URL]
right now i am using SAX parser to read xml and get the nodes in their hierarchical order..now the problem is that i have to assign these specific value to their respective nodes using java.
I am trying to create an empty array that has no assigned length as the amount of elements it needs to hold will be dependent on another value. I then want to use a while loop to assign values to it. Here is an example of what im looking for it doesnt work. Iam trying to do:
int x = 12; int i = 1; int k = 0; int[] factors = {} while (i<x) { if (x%i==0) { factors[k] = i; k++; i++;
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
Started learning about Array's I'm doing an exercise where you create a for loop that randomly assigns values to each element within the array, but where is my code going wrong?
import java.util.Scanner; public class ArrayExamples{ public static void main(String[] args) { Scanner input = new Scanner(System.in); double exampleArray[] = new double[5]; System.out.print("Enter a Number: "); int num1 = input.nextInt();
I am writing a program for a game. It is between the user and a virtual player. The game starts with a pool of consecutive integers 1-100. The size of the pool is based on a random generated number at the beginning of the game. At the start, both players' scores are 0. For each turn, the player picks one number from the pool. That value is added to the player's score, the computer gets the sum of all the remaining numbers in the pool that divide evenly into the player's pick. The player's pick and its divisors are then removed from the pool.
The player should be able to play the game as many times as she wants without ending the program. Instructions should appear on the screen only once at the start of the program.
For each turn, both players' current score, the current pool of numbers, and a prompt for a number to be entered should show onscreen. I have written the code until I get to the function that updates the pool of numbers after a turn.
import java.util.Scanner; import java.util.Random; public class SlickPick { public static void main (String[] args){ Scanner read = new Scanner(System.in); int []pool = new int[100];
[Code] ....
My thinking is that I need to use the binary search to find the indexes of the divisors array and then use those indexes as the start values. I'm not sure how to assign the divisors indexes to start. Do I need an array for start? Whenever I run the program, the only value missing is 3.
//Name : poolUpdate //Description : This function modifies the contents of the pool as a result of a turn of play. //Parameters : The pool array, the divisors array, the size, and the user's pick. // : //Return : public static void poolUpdate(int[] pool, int[] divisors, int size, int pick){ int low=0; int high=size-1;
I have a question in mind that this is my registration form. I am sending these values from HTML form to server and database. I have question that in my case if I click next to Add Another Mobile no in HTML.then a block is genereated and each time a new name is generated.
My Question is if I click 6 times then 6 name attribute are generated. How can I send and differentiate them on my server side.
Because at their I will use something request.getAttribute("Attr_Name");
My application depends on eight default user roles (or account types). They can be renamed or disabled, but should not be deleted. I want to protect them from deletion using their uuid value from the db. How can I pass their uuids into a single variable so I can use that single variable in my conditional statement? If I should use an array, any example of how I might do this?
Can I store multiple rows of a table in a two dimensional string array in java.. The table has 3 columns and approximately 10,000 rows.. Some pointers for coding to achieve this...
After this problem is fixed, my math game will run. The answer variable is supposed to be equal to the cases in the second switch statement by random but I get errors whenever I try to initialize it this way. I have been writing this program for almost 5 days now and it is finally wrapping up. Why I can't map the answer variable to the second switch statement the way I want to?
package pkgnew; import java.util.Scanner; import java.util.Random; public class New { public static void main(String args[]) { //Declare and construct variables Random randomnum = new Random(); int fnum, snum, answer;
I'm trying to build a program that will output what will ultimately look like a simple mario level turned on its side. As part of my output I need the user to define what mario looks like. I do this using Scanner and save the input to String mario. When I try to use that variable in another method it gives me troubles.
import java.util.Scanner; public class Mario2 { public static void mario() { //user defines mario String mario = ">->O"; Scanner keys = new Scanner(System.in); System.out.println("What does mario look like?"); mario = keys.next(); System.out.println("Mario now looks like: " + mario);
I assumed that this is because the constructor Account(); is setting the variables to 0 every time the program runs even though I'm passing other variables through to methods and constructors. I've looked up similar programs and this is how it's done though. The steps to my homework say to create a no-arg constructor Account() that creates a default(0) account Id and balance. What did I do wrong?
import java.util.Date; public class Account { private int Id; private double balance; private double annualInterestRate; private Date dateCreated = new Date(); public static void main (String [] args){ //Objects of Account to get non-static methods
Write a complete Student class that allows you to use the statements such as the following in methods in outside classes, with the obvious meanings. Then write an application program that creates one student object, reads in test grades until a negative "grade" is seen (as a signal that the list of grades has ended), then prints out all available information about the Student:
Student bob = new Student ("Robert", "Newhart"); bob.storeGrade (23); // bob scored 23 on this test return bob.getTotalGrades();; // total of test scores to date return bob.getAverageGrade();; // for all test scores to date return bob.getName();; // returns "Robert Newhart"
What I need is in the Student class... I'm not sure how to go about storing the grades without renewing the value of storeGrade (I'm sure what I have right now is incorrect, but I'm stuck). This is what I have so far, as you can see I left some of the grade-related bits blank for now, but all I want to know is how I can store the grades:
Java Code:
public class Student extends Object { private int itsTotalGrades; private int itsAverageGrades; private String itsFirstName; private String itsLastName; private int storeGrade; public Student (String first, String last)
Let's pretend I'm working on an RPG. Like in all RPGs, there are items found all throughout the imaginary world. Each player and NPC can obtain an item. My question will concern those items.
In other words, I'd like to use instances of a class in multiple places of the code. Each instance will have its own, individual values of instance variables, with one obvious exception: itemQuantity should have a different value in playerInventory, npcInventory, etc. Also, I'd like a list of all items that can be found in the game. This list doesn't need itemQuantity at all.
class Items { String itemName; float itemWeight; int itemQuantity;
[Code] ....
The question is: should I really make itemQuantity an instance variable of the Item class? It seems as though for each copy of the Item class I should create a separate copy with different value of itemQuantity, but that's not very efficient. Where is the error in my logic?
What's important is that there may be plenty items in a game and a player may be given power to create new items during the course of the game.
Alright, I have a JavaFX gui that is creating a new instance of data calculation to graph in a chart; however, the data is not updating each time the Platform.runLater() feature executes. Each time an event occurs, a new instance with the same variable name occurs. I use to get methods to retrieve the data I want, so shouldn't the values update each time the new instance is created? This is a very condensed version of what happens with the event, but this is what is not working correctly.
Event: solarPlot = new SolarTracker(); solarPlot.getElevation(); solarPlot.getAzimuth(); Class constructor : public SolarTracker() {
The below program ask the user to enter the value of x 1 , Y 1 and radius in separate boxes , What would look nice is if the user can Enter the Value X ,Y and radius in the same box.
import javax.swing.JOptionPane; public class C3E29GeometryTwoCircles { public static void main(String[] args) { // Ask the user to enter the x1 coordinate. String strNumber = JOptionPane.showInputDialog("Enter the value of x1 coordinate " ); double x1 = Double.parseDouble(strNumber); strNumber = JOptionPane.showInputDialog("Enter the value of y1 coordinate " ); double y1 = Double.parseDouble(strNumber);
public class Puppy{ int puppyAge; public Puppy(String name){ // This constructor has one parameter, name. System.out.println("Passed Name is :" + name ); } public void setAge( int age ){ puppyAge = age;
[Code] ....
How do I put 3 values of the each variable without replacing the last inputted one?
Like when I input "Tommy" and input another name "Gerald", "Tommy" won't be replaced by "Gerald" when I input again.
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?