I have an Array of Objects that need the duplicates removed/filtered.
I was going to just override equals & hachCode on the Object elements, and then stick them in a Set... but ... |
I have created a program which takes a text file full of 3 letter words and processes them, stores them in an array and then outputs to the build output in ... |
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How do I remove objects from an Array in java?
Basicly, this is my code(a Adress book) i used an arrow to point out ... |
I've written a method to remove null-values from an array i need in a program.
The method, however, doesn't seem to work, the null values won't go away. This is my code ... |
I'm trying code a basic application that will take the amount of numbers the user wants to input and then ask the user for the numbers, save the the numbers in ... |
I am working on an accounting system that calls for rows to be deleted out of arrays. Say for instance that I know the indices of the row I wish to delete. How would I go about writing code to do this? I am trying to delete rows out of a 2D array. Here's how I'm trying to go about this: ... |
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I need help. I don't know how to tackle this. I want to purge the members from the array list. /** * Remove from the clubs collection all members who joined in the given month, and * return them stored in a separate collection object. * @param month The month of the Membership. * @param year The year of the Membership. ... |
Hey everyone, Given a sorted array (of ints), I need to change the array so that any integer that appears only once will appear at the beginning of the SAME array, and still in a sorted order. Also, the program's running time should be proportional to the array (so I cannot have one loop nested inside another loop). I have done ... |
So here's my dilemma. I am suppose to have 2 sets of arrays that the user inputs. The program will have to sort through the arrays and check for duplicate integers. For example, if an array has a set [2,3,4,4,5] ,it should read it and print it out as [2,3,4,5]. THEN, it tries to match with the second set of integers ... |
Hello, I'm trying to write a program with a method that takes an array of various double type numbers of any size, then return only the unique numbers (return an array without the duplicates) while maintaining the order. So input {5, 3, 5, 5, 3, 2, 1, 3, 4} should return {5, 3, 2, 1, 4}. Here's the code: Java Code: ... |
I have a phonebook application where I need to delete an entry including the number and notes connected to that entry. When the program is first started the phonebook txt file is loaded into an array. I currently have the program setup to where it changes the name, number and notes to " " but doesn't remove it from the file. ... |
I need to write a program that asks the user to inter 10 numbers, removed the duplicates, and outputs the distinct numbers. After doing some Googling, this is what I could come up with and no luck: Java Code: import javax.swing.JOptionPane; public class DistinctNumbers { public static void main(String[] args) { String input = JOptionPane.showInputDialog("Enter ten numbers:"); String[] numbers = input.split(" ... |
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Let's say I have an array of integers called arr, like so: int[] arr = {1,2,2,3,3,3,4,5}; What I want to do is pass arr to a function called removeDuplicates, which, in O(n), will replace all duplicates with 0 and move them to the end of the array. In this example, arr depicted above would come out of removeDuplicates looking like: {1,2,3,4,5,0,0,0} ... |
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Implement the following method in the class Project 11 to return a new array that contains all the elements of the array a not in b. Public static int [] remove (int[] a, int[] b) For example, if the array a is {5,3,2,7,1} and the array b is {8,2,5} the remove method should return the array {3,7,1}. Im having trouble getting ... |
Hello sun forum, I wonder if anyone would be kind enough to assist a newbie Java hobbyist with a few basic questions? I don't want to take up too much of your time so I will be brief. I want to prompt a user for ten numbers, then print the numbers in a column one on top of the next. Then ... |
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Acually my input is a string and i need to check if my string contains duplicate char. So after geting input string i convert that string with toCharArray method to char array and got char array...now i m trying to remove duplicate char from that char array and finall convert remaing chars in array to string.. So can i make arraylist ... |
1. Learn how to create a Set 2. Learn how to loop over an array 3. Learn how to add to a Set. 4. Learn how to convert a collection to an array Oh and as you took less than 1 minute to reply to the previous message then you obviously didn't try and probably didn't even read it. Edited by: ... |
hi there, im having difficulty with the replaceAll method, can anyone help? in the following code, I have called this method on a text file when it is fed into the array, as im trying to get rid of the commas. Its not working, so have i called it in the wrong place? also i want to get rid of all ... |
actually saying that, the array I am using is a byte array, which works well for splitting strings, and to convert I would have to use a wrapper class, so maybe using this loop is the best idea? I want to keep this as simple as possible, so I'm going to shy away from writing a circular buffer, thanks anyway. |
Hi there I am really inexperienced in java programming.. well I need to figure out how to show something that has been removed from an ArrayList.size... i.e public void removeMe(int iIndex) { ArrayList.remove(iIndex); } I just need to kno how can I show the removed item? cheerz.. any help would be highly appriciated |