Not Printing Contents Of Array With Spaces And Commas
Nov 7, 2014
public class ArrayPrinter {
public static void main(String[] args) {
int[] oneD = {5, 6, 7, 8};
PrintArray(oneD);
}
public static void PrintArray(int[] Arr) {
System.out.println ('[');
for (int i =0; i >= Arr.length; i++) {
System.out.print (Arr[i]);
if (i < Arr.length){
System.out.print(", ");
}
System.out.print (']');
}
}
}
I tried to format this to enhance readability but I'm not sure if I managed to improve it any... This code should be printing the contents of the array with spaces and commas its just printing [. I think this is because Arr is empty for some reason but I'm not sure why it would be when it gets the values of oneD passed to it.
I'm trying to print the contents of my linked list. I'm using nodes and within those nodes it hold String data. So i want to print out the data within the nodes. Whenever i do
System.out.println(node1.data),
it prints perfectly. But i'm trying to use a method where it would loop through the list and print out the data for every node in it. when i run my print method i get results such as
Node@15db9742 Node@6d06d69c Node@7852e922.
Here is my print method i created
Java Code:
public void print(){ Node<E> current = head; while (current.next != null){ System.out.println(current.data); current = current.next; } } mh_sh_highlight_all('java');
I have to write a program that calculates the average temperature for a month using parallel arrays (it is mandatory to use a parallel array). I'm new to Java (I'm more familiar with C++) so I get confused with the use of methods. I know how to compute the averages already, I just setting up the parallel arrays. This is what I have so far:
Java Code:
import javax.swing.*; import java.util.Scanner; public class Temperature { public static void main(String[] args) { String[] day = {"Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"}; int[] temp = new int [7];
[Code] .....
For now I just want to show the contents in my array before I start computing averages.
I've setup an array that I would like to analyze by adding up the contents of each column, however, the out of bounds exception pops up when I try to execute the program. I know the book usually expresses this operation the other way around, where the row is the argument of the first for statement, but I've set my array up where I need to add each row before moving to the next column.
vowelCounter is a 5x3 array.
// Display the line which had the most number of vowels
public static int maxVowelSentence() { int max = 0, sum = 0; int sentence = 1; for (int row = 0; row < vowelCounter.length; row++) { max = vowelCounter[row][0];
So I am trying to open a file and store the contents into a two dimensional array. I seem to have no problem using this same basic code to read the file and output it. But when I try to change it so that all the data is stored into the array, it does not work.
Java Code:
public void convertFile() { String filePath = ("C:UsersBradDownloadsFB1.csv"); String [][] rowCol = new String [429][6]; try { BufferedReader br = new BufferedReader(new FileReader(filePath)); StringTokenizer st = null; System.out.println("Your file is being converted to an array. This may take several minutes.");
The main method will drive your program by doing the following:
-Create an array to hold all the individual golfers and par scores (type is Golfer[ ]). -Prompt the user for a data file containing the Par scores and the player names and score. The format of the input file should look like
I am trying to do this assignment but I can't get the needed output.
Create a program that asks the user how many floating point numbers he wants to give. After this the program asks the numbers, stores them in an array and prints the contents of the array in reverse order.
Program is written to a class called ReverseNumbers.
Example output
How many floating point numbers do you want to type: 5
Type in 1. number: 5,4 Type in 2. number: 6 Type in 3. number: 7,2 Type in 4. number: -5 Type in 5. number: 2
Given numbers in reverse order:
2.0 -5.0 7.2 6.0 5.4
Java Code:
import java.util.Scanner; public class apples { public static void main(String[] args) { Scanner reader = new Scanner(System.in); double[] numbers;
I would like to get commas in my output for bigger numbers like 1,000.00 10,000.00 etc...This is my program. Everything compiles just fine and I get the right output but again would like commas.
import java.text.DecimalFormat; import java.util.Scanner; import java.io.*; public class propertyTax { public static void main(String[] args) throws IOException { String fileName; double assessedValue;
[Code] ....
These are some of the values that are in/outputted :
I've almost got this to work. Right now it prints out one comma for the first set of 3 numbers. For exmaple, if the user input is 12345678 the code will print out 12345,678. I'm trying to figure out how to get it to print out commas for the rest of the numbers. My first thought was to use a loop but I can't get it to work....
private static void printWithCommas(NaturalNumber n, SimpleWriter out) { assert n != null : "Violation of: n1 is not null"; assert out != null : "Violation of: out is not null"; assert out.isOpen() : "Violation of: out.is_open"; if (n.compareTo(THOUSAND) < 0) { out.print(n);
I am trying for a logic that i have some emp ids as a string seperated by commas and i need the substring of emp ids as below. splitting the string as below.
public static void main(String args[]) { String empId = "1,2,3,4,5,6,7,8,9,10"; int i; int count = 9; for (i = 0; i <= count; i = i + 3) { System.out.println("Emp IDs are : " +empId); }}
Result is:
Emp IDs are : 1,2,3,4,5,6,7,8,9,10 Emp IDs are : 1,2,3,4,5,6,7,8,9,10 Emp IDs are : 1,2,3,4,5,6,7,8,9,10 Emp IDs are : 1,2,3,4,5,6,7,8,9,10
But I want the result like:
Emp IDs are : 1,2,3 Emp IDs are : 4,5,6 Emp IDs are : 7,8,9 Emp IDs are : 10
So I'm trying to write a program that will take in 5 numbers, store them in an array and then print out the array and the average of the array. Problem is that every time I run my program I get a "ArrayIndexOutOfBoundsException: 5" error and I don't know who to fix it.
public class ConstructorHomework { final static int size = 5; static double[] myArray = new double[size]; public static double average; public void printArray(){
So for fun I've decided to write a program that can keep track of a simple card game my friends and I designed. I've built a class for an array, that stores the basic stats of each card. I need to be able to access this array from another class, that will print the array information to a file, so we can easily keep track of who's cards have leveled up and their stats. The main class will also be using a random number generator to determine how much damage the attacker/defender deals and takes respectively. So far I have the random number generator built as well. I'm just having issues creating a print to file class and what I need to change in my array class to make it accessible by the other class that prints it to a file.
public class StartingStats { public static void main(String[] args) { //Variable to use for how many spots in a stat array there are final int statArray = 2;
[code]...
what I need to change so that a print to file class can access EACH array in this array folder. Also if any cookie cutter printToFile class I could use/borrow/change that'd be really useful, as I've never done any printing to file before. Also, the levels of each stat and exp will be changing so that's why I need a separate class to print so that I can call it when it's been updated so we always have the most up to date stats saved.
My array isn't printing. I have tried everything. I have tried putting a nested for loop in different methods but still no luck. I have also tried System.out.print but that prints random characters/numbers.
import java.util.Scanner; public class Square { public static void main(String[] args)
[Code].....
^For some reason the site doesn't show the spaces between the *. It's supposed to be a 5x5 square.
I have tried to print array elements using standard print statement. I am getting errors. How to print them. Here is my code:
class arrayEx1{ public static void main(String args[]) { int a[]=new int[3]; //Declaring Single Diomentional Array a[0]=10; a[1]=20; a[2]=30; int total=a[0]+a[1]+a[2]; System.out.println("Values stored in a[0],a[1],a[2]elements are :" + a[0] a[1] a[2]); System.out.println("Total values of a[0],a[1],a[2]elements is :"+ total); } }
if i give comma (,) in between above print stament (print statement 1) stil i am getting errors.
Ok, so the program we are supposed to do is to create implement a employee class then create a main tester class that can accept user inputs for 5 employee names, salaries, and performance rating. After that, we have to input code to calculate a provided raise amount, then print out the array with the updated raises. I have completed the program with no syntax errors, but it doesn't do anything. not even a screen comes up on my end to accept user inputs. I know its something basic, but what am i missing
Employee class public class Employee { private String employeeName; private int salary; private int performanceRating;
I have a program that works, but I would like to know an easier way to record and print from a large array.
Here is what I have
package pa2; import java.io.IOException; public class PA2Delegate { //long[] array = new long[100000]; int arraySize = 100000; int iterations = 9999; Long[] array;
I am having a hard time trying to figure out how to print random numbers from a an array list. I tried google but nothing worked. I have to pick certain values from two lists and print them on the screen. I have included comments in the code to facilitate the explanation.
import java.util.Random; public class Parachute { public static void main(String[] args) { Random randomNumbers=new Random(); int number; int array []={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21}; char A[] = {'a', 'b', 'c','d','e','f','g','h', 'i','j','k','l','m','n','o','p','q'};
My assignment was to create a class and then write a program that uses the methods of the class I created. All the output is correct except for the Question # Missed. It prints [I@1dd0fe7. The wrong question numbers have to be stored into an array and that array printed. I've tried using a for loop to print, rearranging the code, setting the code to how I did in the other methods. I either get this [I@1dd0fe7 -or- a bunch of 0's. I'm not sure if I am calling the method incorrectly, or just do not have the correct set-up to print the array, or if I am just not grabbing the ones that are incorrect.
public class DriverExam { // Fields private boolean result; private int testTotal; private int numWrong; private int [] numMissed; private char [] answerKey;
I do not know how to read a name which has spaces in Java and I wish to learn. The following is my code
import java.util.*; public class Asking { public static void main(String []args) { Scanner reader = new Scanner(System.in); String [] names = new String[20]; int [] marks = new int[20];
