I need to generate a league table in Java based on results provided in the shape of user input. I have the 6 teams in an array. I need to ask the user how many wins, draws, losses each team has had.
for (String element : teams) {
System.out.println(
"Please enter the number of wins, draws and losses for " + element);
int[] wins = new int [6];
int[] draws = new int [6];
int[] losses = new int [6];
}
How do I pull 3 separate values from the user and then store each value in a separate element of each array? so if one team wins 3, draws 2 and loses 1 - I need to put 3 into the wins array, 2 into the draws array and 1 into the losses array? I then need to total all this in a table.
This particular program is supposed to prompt the user to input either an uppercase or lowercase Y to process a phone number, they are then prompted to enter the character representation of a phone number (like CALL HOME would be 225-5466), this repeats until the user enters something other than the letter Y. All of the words entered are to be stored into a single array. The program is then to convert these words in the array to actual phone numbers.
import java.util.*; public class Program1 { public static void main(String[] args) { Scanner input = new Scanner(System.in); String begin; int phoneNumber = number.convertNum(); System.out.println("Please enter an uppercase or lowercase Y when you are ready to enter a telephone number: ");
[code]....
I realize that the second method doesn't have anything to return yet, I just wanted to put that in there while I was doing things that I actually know how to do ha. The convertNum() method is supposed to be the method with which the array of characters is converted to phone numbers.
would think it'd be easier to store the inputs from the user as individual letters rather than words for the sake of converting to phone numbers.
Also, we are only supposed to recognize the first 7 letters of each word that is entered, like the CALL HOME example, there are 8 letters but it's still a seven digit phone number, so I'm not sure how that would work.Also, when printing the phone numbers after they've been converted, we're supposed to print the hyphen after the third number, I have no clue how that would be done from an array.
I realized that I was not filling the array with anything but now I'm having issues filling it correctly. It's only filling the array with three of the user inputs ....
import java.util.Scanner; public class DriverSort { public static void main(String[] args) { Scanner scan =new Scanner(System.in); Sorter sorter = new Sorter(); int choice; // variable which says which sorting algorithm to use
Write a java program that will ask a user to input grades until the user inputs the sentinel value -1. The program should test each input to determine whether 0<=grade<=100. If the grade entered is within this range, the program should print "Grade accepted;" if not, the program should print "Invalid input".
i am currently making a game in java and currently i am working on the basic mechanics. most of it is working fine but i cannot seem to make it so when the user presses and movment key and space to fire a bullet the bullet fires in the direction they are moving. here is the code i have for movement.
public void keyPressed(KeyEvent e) { // TODO Auto-generated method stub int bulletx = Player.x + 100; int bullety = Player.y + 20; int key = e.getKeyCode(); if( key == e.VK_W){ p.moveUp(); } if(key == e.VK_S){ p.moveDown();
I'm writing a program that accepts three doubles from the user, and performs calculations on them. I want to be able to handle input mismatch exceptions on each individually (i.e., if the user enters a double for the first, then a letter for the second, I'd like to be able to keep the value entered for the first, and only require that the user try again with the second, then the third, etc.)... I tried putting each input instance into its own try/catch blocks, but it always goes back to #1 when an invalid input is entered. Right now, I have all three in one try/catch:
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)
The first line is the number of test cases and the second line is the corresponding values for the test cases. Java code for taking multiple inputs in the single line separated by a space.
I would like to ask you how can i execute the next code without errors.
I am trying to execute a jar (myFile.jar) file multiple times with different inputs from another jar file. More simple i have game with many players and i create a Round Robin scheduling for the tournament, i need to execute all the mach's of a round together.
When i run the next code it execute on the first game with the first players multiple times.
Java Code:
public class RunJARFile { //10 player //5 game per round public static void main(String[] args) throws IOException { for (int Tour = 0; Tour < 9 ; Tour++) { for (int Game = 0; Game < 5; Game++) {
I have declared an array list that will store data type of 1 Character and 2 integer. The data that will be store in this list is
1. A = {0 3} 2. B = {0 5} 3. C = {0 3} 4. D = {0 3} 5. E = {0 5} 6. F = {0 6}
Now here the alphabets are routers and integers are there con1 and con2 respectively. I have a set of router={ A,B,C,D,E,F}.
Step 1:I have to subtract con1 from con2 i.e. (3-0) of all the routers and Step 2: then put the router having largest value in new set 1 and Step 3: then this router will be subtract from the router set. Step 4:then again I have to repeat the step 1 until the value of routers become <= 1.
Now what I did is I defined 3 arrays first is String array that stores names of routers, 2nd array that stores the first value and 3rd array that stores the second value. I can find the largest value but how to store the name of router against the largest value in the set.
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...
I have one problem regarding Running Multiple queries parallely and storing results in resultsets . I have multiple queries but I need to executing all at a time without having to wait for one query to complete execution and then run another as there are 2 queries say query1 takes 10 mins and hence query2 should also start simultaneously and not wait for query 1 for completion.
String query1="select * from knowledge_rep"; String query2="select * from events"; ResultSet rs=null; PreparedStatement ps =con.prepareStatement(query1); rs=ps.executeQuery(); ps =con.prepareStatement(query2); rs1=ps.executeQuery();
[Code] ....
The above one is time consuming and second implementation using branch i wont be able to resolve it to result set using execute batch. Considering there are multiple select queries and the number of queries to be executed are dynamic and unknown and all the data from the queries are needed. Any leads to perform all these by running multiple threads simantaneously.
I have a LoginScreen class and one other class in my project. I want use user inputs (Username And Password) on other class if users details is true. I am stcuk at this point because when user attempt to Login connection is succesfully and other frame is coming to screen but i can reach user details anymore. Let me explain with codes;
LoginScreen class
/* * 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 deneme3; import java.sql.Connection;
[code]....
You can see Button Action in MainProgramWindow " System.out.println( ??? );" How i can retrieve users inputs from this class ?
We are writing our own classes and methods. My instructor has provide the code
/*------------------------------------------------------------------------- import java.util.*; public class Assignment5 { public static void main (String[] args) {
[Code].....
I am having trouble with the question counter. I need the counter to increase when c, d or e are entered. I think I need to set up a if or while loop but I'm not sure how to setup the variables. This is what I have for the counter so far.
I'm working on an assignment for my Java Programming class that requires me to work with Multiple Classes.
Overview of the assignment: Create a "Database" that allows a user to input information about a College Class.
My program has three Classes:
The information that must be tracked in the Course Class is: - Section Number - Instructor - Classroom - Students (an ArrayList of class Student)
The information that must be tracked in the Student Class is: - Name - Major - GPA - Hours
The Driver class will use the main method to print the user a prompt asking for inputs, then display all of the user's inputs after he/she wished to exit the program.
I'm having no trouble with asking the user for inputs and then checking the validations for the inputs, I'm currently struggling with return a String that houses all of the user's inputs for the variables above. The information must be returned in a method called toString(). Both the Student and Course Class must have a toString() method that returns the information in the class (value of the variables), I must then call upon these methods from the main method of the Driver Class to print them back to the user.
The toString methods within the Student & Course Classes are at the bottom of the code
To Summarize: What I need to do within the toString() methods to return the values the user has inputted for the various variables? Such as.. Should I pass something through the method? Do I need the this keyboard to pass through the variable again? I just fear that I'm currently misunderstanding a very critical part of programming.
My Driver Class
import java.util.Scanner; public class Driver { Course courseInputs = new Course(); Student studentInputs = new Student(); public static void main(String[] args) {
import java.util.Scanner; public class CountStringNumbers { // show the number of Strings that were numbers . . .. public static void main(String []args){ int count = 0; int countNumbers=0; Scanner input=new Scanner(System.in);
[code]...
can count the numbers from 0-9 if the user puted but if it is 10 it doesnt count it , and i need to write all the numbers to have that option. . . . Is there an easy way that includes all the numbers? like if(word.equals(number)){<<<???? (numbers) i know htat doesnt work but is there anything similar ?? ??
countNumbers++; } System.out.println("Type Something , , , and to end the the termination type STOP"); word=input.nextLine(); count++; } System.out.println("You wrote "+count+" lines wich from those lines "+countNumbers+" were numbers and the programe terminated "); } }
I have an assignment where I'm supposed to write a program where the user inputs a month between 1-12 and then the right amount number in every month. I've tweaked the code a bunch of times, but I keep getting this error message:
insert "}" to complete StatementKALENDER_3.java insert "}" to complete BlockKALENDER_3.java
The code:
import java.util.*; import java.util.Scanner; public class KALENDER_3 } public static void main(String[] args){ Scanner scanner = new Scanner (System.in); System.out.print("Skriv ett manadsnummer: ");
[code].....
I think I have just forgot to put in a few { } symbols, maybe an open loop?
I have been stuck on this for the past 2 hours, basically we have to compare user input, put user input into an array and compare for equivalency. An example of the program:
Array 1 & 2 are equal Array 1 & 3 are not equal Array 1 & 4 are not equal.
This cannot be done by importing Java.util.Array at all!! (my research only find this to compare arrays ) which is why I am having trouble starting off. My code thus far:
import java.util.Scanner; public class Lab07b { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.println("Enter Integer 1:"); int a = input.nextInt();
I'm developing a Swing application for the first time. To test my application, I have currently hardcoded some text labels and fields in a JPanel, so that a user can enter input details for a maximum of 3 segments. But this limits the maximum number of segments to 3. However, the requirement is that when the user enters the number of segments (could be greater than 3 as well), corresponding number of input sets need to be taken.
Screenshot attached, with values entered.
Basically I want to know how I should go about taking the inputs from the user.
I am having trouble with getting a user input once they enter it in to a JTextArea and then storing it in to a string value. See, I wanted the user to enter an answer in to the JTextArea, and then once I store it in to a string value, I would be able to use it later. I wanted to after storing the variable to print it on to a JLabel, but nothing is showing up... Heres my code.
static String usera[]= new String [10]; for (int i=0; i< usera.length; i++) { //These are the JTextArea names usera[0]= Question1.getText(); usera[1]= Question2.getText();
[Code].....
I already initialized the JLabels earlier in my code, and I did not feel the need to post all my code here. This is where I am trying to get the string variable and then printing it out.
I need to receive input from the user, as many times as he wants. tha is done with the while loop. I also need to output the min and the max numbers the user enters, therefore i have the if statememnts. also if the user enters only one value i need to output that one value as the min and the max.
int min =0; int max = 0; int option = JOptionPane.YES_OPTION; while ( option == JOptionPane.YES_OPTION){ String dataString = JOptionPane.showInputDialog("Enter an integer"); int data = Integer.parseInt(dataString);
I am having an issue with using FileWriter to print some text to a text file. In the following code, I am supposed to be able to print the initial attributes and the user changed inputs into a file but all I am getting is the memory locations of the objects I created in one long line.
package project3final; import java.io.*; import java.util.*; public class Project3Final { static class Instrument { char [] stringNames = {'E', 'A', 'D', 'G', 'B', 'E'}; private final String instrumentName;
I have to use the company's login resource, which returns a login page for authentication after a browser/user page request; after successfully authenticated, the session attributes are set in a (remote) valued object (VO) invoked via servlet; then, such values are set in my (local) POJO.
I want to display the current user session attribute (see xChave below) and save it in database. How can I persist http User session attributes through the structure below?
Abstract Controller (just the main code):
public abstract class AbstractController<T> { @Inject private AbstractFacade<T> ejbFacade; private Class<T> itemClass; private T selected; private Collection<T> items; //GETTERS AND SETTERS OMMITED public AbstractController(Class<T> itemClass) { this.itemClass = itemClass; }
Following is the code for my assignment where a user inputs his full name in a string from keyboard. It should be done using BufferedReader. The program will give his initials as output.
############################
For example: User inputs-> Ram Kumar Das
Program Returns-> R.K.D.
I am written the following piece of code. It does not return the correct output. If "Ram Kumar Das" is given as input, it gives R.K.K. as output. Arrays and objects are strictly not allowed.
Java Code:
import java.io.*; public class Assignment { static int i=0; static BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); public static void main (String args[]) throws IOException
I am trying to make a program that calculates the change due in dollars and cents. The user inputs both the amount due and the amount tendered. My program only works with whole numbers?
One of the requirements of my programming assignment is that a user enters a command along with two numbers. For example, if I entered the following command:
I 5 6
The program create an image like this (it wouldn't be outputted though):
00000 00000 00000 00000 00000 00000
It creates a 5 x 6 "image". This is where my troubles begin. The program should also accepts other commands, such as:
L 3 2 F
which would produce (also not outputted):
00000 00F00 00000 00000 00000 00000
Here is my method for creating an "image" with an M * N array
for (int i = 0; i < column; i++) { for (int j = 0; j < row; j++) { System.out.print("0"); } System.out.println(); }
The code works, but I need to store the image in an array so it can be changed by other methods (I can't create the image manually every time). I tried doing something like this but it doesn't work:
public static String[][] createImage(int row, int column) { String[][] image = new String[row][column]; for (int i = 0; i < column; i++) { for (int j = 0; j < row; j++) { image[j][i] = "0"; } System.out.println(); } return image; }
This method outputs as many blank lines as the columns I entered and the memory location of image.
So my question is: how would I store "0" in a 2D array so that it can be accessed and changed by other methods?Or, am I using a 2D array incorrectly and will the image have to be created manually every time? If so, how would I output image if it is created in a separate method?
