I am writing a program which writes down all possible equation y=a+b+c values from min to max (in reality this equation would more difficult, but here is just short example).
The problem is that my sorting code can't get access to full array in loop.
Is there any way to pass array to sorting code, or somehow change sorting code?
package pkg06;
public class Main {
public static void main(String[] args) {
double aS =-1;
double aE = 3;
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();
when I am programming let say in VB using Visual Studio, finally I build .exe file that can be run on all Windows by double click.For Java I am using Eclipse and to run those apps I am using run from Eclipse.How I can create a sort of "executable" for my Java app that I would be able to run it by file click on Windows or Linux?
im trying to create an insertion sort method for a vector. I know how to insertionsort for an array, but for a vector im having problems
Source code: PHP Code: package test; import java.util.*; import java.io.*; public class LinearSearch { public static void main (String[] args) { Vector myVector = new Vector();
[Code]...
I'm getting errors at lines 38 and 39 "Left-hand side of an assignment must be a variable". "Syntax-error(s) on token(s) misplaces contructor(s)". How can i fix them ??
I am trying to print a loop inside an array of a greater size than the loop itself. Like for example I have an array of size 7 but it has only 3 elements.
now what I want to do is print these three numbers in a loop so that my array[3]=2;array[4]=3;array[5]=4 ...... till the last one. Also the array could be any size and not just 7.
how can I got about sorting an array that contains more than one value in a single element. Such as my array below has 4 values under one element. I know how to sort elements with single values however, slightly confused on this.
import java.util.Scanner; import java.util.Arrays; class Mobile {
I wrote this piece of code, and it is supposed to use bubblesort to sort the array. Yet somehow it re-aranges it, but doesn't exactly sort it. For example, when I enter [3, 5, 6, 9, 8, 4, 7, 5, 6, 2], it prints Done [2, 5, 9, 5, 7, 8, 4, 6, 3, 6]
Java Code:
import java.lang.*; import java.util.*; import java.util.Arrays; public class bubble { public static int[] array(){ int [] anArray = new int [10];
Directions: public static void initialize(ArrayList names, ArrayList sores)
You should write a function that sorts both array lists, based on the values in the scores array list. This is one of the more conceptually challenging parts of the assignment. You want to sort the scores array list, and simultaneously alter the names array list so that the names continue to line up with their respective scores by index. In the example data above, when the score 9900 moves to the first element of the scores array list, the name "Kim" should also be moved to the top of the names array list. The function should have the following signature:
I'm having trouble figuring out how to sort the lists.
import java.util.ArrayList; import java.util.Scanner; public class Assignment5 { /** */ public static void main(String[]args) { intializeArrays();
How I would sort two heaps into one array. I know that in a heap the "parent" is guaranteed to be larger than the "children".
So could I simultaneously traverse both trees in order, and while doing so, store the values of each node, one after another? This way the array would be partially sorted and then I could just use an insertion sort.
Is this logic reasonable or am I looking at it the wrong way?
This is a lab for one of my CS classes, and the assignment is to create a randomly filled array (values 10-100) and use these values as the height of an array of rectangles (essentially a bar graph)that will be drawn on a page. After that's done, the code should use the selection sort method to sort the bars least to greatest, being repainted as it's sorted.
I'm receiving no errors, the original draws just fine, and the code sorts the first position and then...it just hangs. Like it's in an infinite loop but I have all of the modifiers in place (I think. I've been staring at this code for three days straight and I don't think I really see it anymore). I've tried talking to my professor and I get that her private life is really busy right now, but she just keeps blowing me off and I don't know what to do. Anyway, done with back story and whining so here's the code.
Rectangle class: import java.awt.*; import javax.swing.*; import java.awt.event.*; public class Rectangle
I have a question about selection sort. If I had an array of numbers, 1 2 3 4 100 0, and used the selection sort method (below) on the array,would the 0 slowly work it's way down to the end?
Merge sort implementation on the given array i listed in the code below. I know Arrays.sort() or Collections.sort() could do the trick but i want to achieve it through merge sort.
import java.util.*; public class Merge{ public static void main(String[] args){ String[] myStringArray=new String[]{"z","a","z","b","c","e","z","f" ,"g","a","w","d","m" ,"x","a","R" ,"q","r","y","w","j","a","v","z","b"}; } }
Code below. I am not sure if my logic is correct. I want to prompt a user to enter registration numbers from 100 to 1000, store the numbers in an array then sort them.
import java.util.Scanner; class regnumber { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.println("registration number ", 100,1000);
I am having trouble with an array out of bounds exception. I understand what the error means (that I am trying to access part of array that does not exist). But I do not see the error in my code.
Java Code:
public class bubbleSort { public static void main(String []args) { int i; int array [] = {12,9,4,99,120,1,3,10};
I have read through some of the posts on insert sort /arrays and see close but not exactly what I'm looking for. I don't want to use a library to do work for me, I want to do it myself and understand it.
OrderedArrayList.java // import static org.junit.Assert.assertEquals; public class OrderedArrayList<T extends Comparable<T>> { // T is a variable that contains a class type, array of T things private T[] arrayA; // changed to private per example private T[] arrayB; int numElements = 0;// number of elements full (not null), used in multiple methods. numElement -1 = back
I know it is possible to do this using the Array class but I don't want to use that. I am trying to use selection or bubble sort but I believe selection is what I want. This program asks the user to input 2 arrays with 10 integers each, sorts them from smallest to largest, then states whether they are the same or not. Comparing the two arrays.
import java.util.Scanner; public class SetDifference { public static void main (String args[]) { Scanner sc = new Scanner (System.in); int array1[] = new int[10]; int array2[] = new int[10];
Write a for loop for creating a pyramid starting on the platform with the bottom line consisting of 10 boxes then 8 then 6 and so on. I have attempted making the first row but when i run the program the boxes all split up and fall over.
Is it possible to use a loop to create objects? I'm trying to put together a program (just as a way of learning) to run a horse race.
What I'd like to is have the user enter the number of horses they want in the race, and then create the objects as the user enters the various attributes of the horse (at least the horse's name), and then once all the instance variables have been set, create the first horse object and then move on to the second one, etc, until all the horse objects have been created.
I know I can't use something like a for loop to do it, so how would the code be writte
I working on a bank program that gets a user id, name and balance from a text file. I need to be able to sort based on each field. I'm using Collection.sort and Comparator. I'm using String[] array = file.toFile().list(); to get the values for the array from the text file. I can't figure out how to make this into an arraylist. I understand the concept when hardcoding the data but having trouble doing it from a text file.
Use the sort method of the arrays class to sort the values in the array, and print the median value(the 50th value) on the console followed by a blank line. Then, test this enhancement. Print the 9th value of the array on the console and every 9th value after that. Then, test this enhancement.
import java.util.Arrays; public class ArrayTestApp { public static void main(String[] args) { double [] arrayTest = new double[99]; //adding random number to each element in the array for(int i=0; i<arrayTest.length; i++) arrayTest[i] = 100.0*Math.random();
[Code] ....
OUTPUT
run:
The average is: 49.842845462514944 The median is: 49.68753724038633 The 9th value is: 2.599530043466969 The 9th value is: 11.486193141397095 The 9th value is: 20.14206270200648
I'm supposed to write a program, which reads float numbers from a file, puts them in an array and sorts the array. After that I'm suppose to add the numbers so that when I add the 1 and 2 number of the array, I'm suppose to save the sum on the position of number 1, then I add number 3 and 4 and save the sum on position 2 etc. Also if my array has an uneven number of floats it's suppose to add the last 3 and not 2 numbers in the last iteration. The problem is the method throws an ArrayOutOfBounds Exception but I can't seem to find my mistake.
That's the second method. The first one just stores the sum in another variable and then returns it. Also is there a way in that I can Scanner/File/array etc. and initialize the array only once so I don't write the same code two times like it is now.
package sumOfFloats;
import java.io.File; import java.io.FileNotFoundException; import java.util.Arrays; import java.util.Scanner; public class SumOfFloats { public static float sumFloats() throws FileNotFoundException{
I'm working on my Android project where I created Expandablelistview with men's and women's sports. Now I have to populate each sport with my text data which contains events. I'm stack at this point, already tried few thing but that did not work. Here is my data how it looks like:
I have here my Main method where I have to pass data to each of my sports(activities). I tried to create a for loop and then pass result to my sport(activity) but I'm doing something wrong and can not get that work. Here is my code:
GroupedFeed findFeed(String locateSport){ //here I tried to create a loop which gonna search for certain sport in array list //and then pass it to gfResult. } public boolean onChildClick(ExpandableListView parent, android.view.View v, int groupPosition, int childPosition, long id) { switch (groupPosition)
I have an array that I filled with 30 random characters, but now I am trying to sort them in ascending order and the descending order using lambda expressions.
public class RandomCharacters { public static void main(String args[]){ Random r =new Random(); char myarray[] = new char [30]; for (int i = 0 ; i < 30; i++)
I can't figure out where to create the StringHandler object. My code should take a string as input, then create StringHandler object ord with the string input. This should repeat until cancel is pressed, then ord should be sent to the Utskrift-method (a print method).
If I do like this, null is also sent to Utskrift. I dont want that to happen. If I put StringHandler last in the loop ord can not be resolved.
String text = ""; while (text != null){ text = showInputDialog(null, "Enter text:"); StringHandler ord = new StringHandler(text); if (text == null){ [Utskrift(ord.getNumber(), ord.getString(), ord.getWords()); break; } }
