Method That Returns New Array By Eliminating Duplicate Values In Array

Jun 15, 2014

Write a method that returns a new array by eliminating the duplicate values in the array using the following method header: public static int[] eliminateDuplicates(int[] list). The thing is that I found the working solution that is written below, but how it works. How to eliminateDuplicates method done with flag and flag2.

Here is the code:

Java Code:

import java.util.Scanner;
public class Exercise06_15 {
public static void main(String[] args) {
java.util.Scanner input = new java.util.Scanner(System.in);
int[] numbers = new int[10];
System.out.println("Enter ten numbers: ");

[code]....

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Finding Duplicate Values In Array List

Jul 8, 2014

I am working on this project that wants me to write a program that inputs 20 numbers, each of which is between 10 and 100, inclusive. As each number is read, display it only if it is not a duplicate of a number already read. The only part I am confused about is how to go about checking for duplicate values that the user may enter. And IF the user does input a duplicate value, it should not be stored again.In addition, the value entered should be printed out after it is entered along side the value that have been previously entered by the user such as:

23
23 45
23 45 67
23 45 67 12
and so on.

I am still fairly new at java programming.

import java.util.*;
public class NumberArray
{
public static void main(String[] args) {
// declare an array with 5 elements

[code]....

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Avoid Reprinting Of Duplicate Values In Array

Mar 28, 2014

I have a practice program (written with NetBeans IDE 7.4) that calls methods to:

(1) fill an array with user input values

(2) sort the array values into ascending order

(3) print the array in assorted order.

(4) print the array without any duplicates

Method (4) prints the contents of the array without printing any duplicates. That is, if a number in the array has already been printed, it will not be printed again.

Method (4) seems to work, but may be inefficient or I may have done too much work making it difficult on myself or making the logic too confusing.

Is there a better way to do this WITHOUT using built-in functions in Java's library?

(Such as writing this method using for loops and counter variables: As practice I am supposed to avoid using Deleting functions for duplicates)

Here is my code:

public static void Duplicates(int [] array){
int duplicates = 1;
String Output = "";
for(int i = 0; i < array.length -1; i++) {
if (array[i] != array[i+1]){
duplicates ++;

[Code] .....

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I need to create a method that returns a new array containing the componentwise sum of its arguments(if length is the same). For instance, if the input arrays are {0,1, 2} and {2, 2, 3} then the output is {0+2, 1+2, 2+3}, i.e. {2,3,5}.If the input arrays have different numbers of elements, the method should return null.

I came with something like this, however i dont know how to make a copy of an array from two arrays. My code obviously wont compile. package whatever;

import java.util.Arrays;
public class hhhh {
public static void main(String[] args) {
double [] a = {1,2,3};
double [] b = {2,3,4};

[code]...

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Jan 26, 2015

Write a Java method that returns the largest value of an array of doubles passed to the method as an argument.

Back into java wasn't sure how to do it for doubles did one in the main for integers and then added a method changed from int to double and now i'm lost as go why its not working.

package kickstarter9;
public class Kickstarter9 {
public static void main(String[] args){
double myList;
double[] myList = {6.0, 4.1, 2.4, 6.8, 1.9, 9.4, 2.8, 4.6, 9.3};
// find the largest value in the list

[Code]...

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Method That Returns Largest Object In Array Of Objects

Apr 4, 2015

This is what I have to create : Write a method that returns the largest object in an array of objects. The method signature is:

public static Object max(java.lang.Comparable[] a)

All the objects are instances of the java.lang.Comparable interface. The order of the objects in the array is determined using the compareTo method.

Write a test program in the main method that creates an array of ten Strings, an array of ten Integers, and an array of ten java.util.Dates, and finds the largest string (i.e. in the alphabetical order), Integer, and Date in the arrays.

Name your java class Max and your java file Max.java.

I am struggling a bit with this code as I am sure you can see, and am at loss. I have never used the compareTo method. Am I doing this right, or on the right track with my code?

public class Max implements Comparable {
public static Object max(java.lang.Comparable[] a) {
java.lang.Comparable tempObj = null;
for (int i = 0; i < a.length; i++) {
if (a[i].compareTo(tempObj) > 0)

[Code] ....

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Feb 23, 2014

I am trying to write out a program that takes numerical input from the user and converts it to a date using the English month name. I am experimenting with the method of a "switch" statement without using the "break" clause. However, I seem to be missing something, as Eclipse is telling me I have a syntax error with my block. My curly braces seem properly placed. Also, I made sure to follow guidelines to make my code fit on the screen and remain easy to read.

import acm.program.*;
public class MethodsThatReturnNonNumericValues extends ConsoleProgram {
public void run() {
int month=readInt("Enter month number");
int day=readInt("Enter day");
int year=readInt("Enter year");

[Code] ....

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Oct 25, 2014

I must write a method that accepts a string and returns an int. The method should sum the unicode values of each character, so the string "ABC" should return 198. Also the only string class methods I'm aloud to use are length, charAt, and substring. I just don't know how the get the Unicode value.

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Sep 28, 2014

I am doing an assignment and I am clueless as to what I did wrong or supposed to do in terms of placement of coding.

This is what I supposed to do:

1.) Type the following shell for the class:

public class ParadiseInfo
{
}

2.) Between curly braces of the class, indent a few spaces and create the shell for the main() method:

public static void main(String[] args)
{
}

3.) Between the braces of the main()Method, insert a call to the displayInfo() method:

displayInfo();

4.) Place the displayInfo() method outside of the main() method, just before the closing curly brace for the ParadiseInfo class:

public static void displayInfo()
{
system.out.println ("Paradise Day Spa wants to pamper you.");
system.out.println ("We will make you look good.");
}

This is what I attempted to do:

I know it is wrong I am just clueless on where to put the code and why

public class ParadiseInfo
{
displayInfo();
public static void main(String[] args)
{
public static void displayInfo();
}
system.out.println("Paradise Day Spa wants to pamper you.");
system.out.println("We will make you look good.");
}

--- Update ---

I also tried it this one and ended up with 1 error..

public class ParadiseInfo
{
displayInfo();
public static void main(String[] args)
{
}
public static void displayInfo();
{
system.out.println("Paradise Day Spa wants to pamper you.");
system.out.println("We will make you look good.");
}
}

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Dec 18, 2014

I was trying remove duplicates element from my array without using collection API but i didn't got any output from my code.Although it is compiled successfully but on execution it didn't give any output. I guess there must be some problem in function Duplicate

Java Code:

class Union {
public static void main(String...s) {
Union M=new Union();
int x[]=new int[]{1,0,1,4,10,10,10,3,567,4,3,33};
int y[]=new int[]{5,4,5,4,5,4,2,3,3,1,0};
int []w=M.merge(x,y);

[Code] .....

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Nested for-loops always throw me in a loop.I found a snippet that uses 2 for-loops to check if there is a duplicate element in the array:

/*
* brute force way of checking if array contains duplicates in Java comparing each elements to all other elements of array complexity on order of O(n^2) not advised in production
*/
public static boolean bruteforce(String[] input) {
for (int i = 0; i < input.length; i++) {
for (int j = 0; j < input.length; j++) {
if (input[i].equals(input[j]) && i != j) {
return true;
}
}
}
return false;
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Let us say we have:
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for(int i = 0; i < limit-10; i++) {
Random dice = new Random();
int randomIndex = dice.nextInt(array.length);
if (array[randomIndex] < 128) {
System.out.print(array[randomIndex] + " ");
} else if (array[randomIndex] >= 128) {
System.out.print(array[i] + " ");
}

byte[] noteValues = new byte[]

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I've tried amending the manual input to fit in with the Random array, as follows:

byte[] noteValues = new byte[]
{ array[randomIndex] };

In this case, however, the Byte array can't interpret the int values. Also, if the Byte array is outside the 'for' loop, array[randomIndex] cannot be resolved.

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Jun 1, 2014

Basically, it's to write a method that takes in, and then returns another array, whose first element is the average of the first two numbers, last element is the average of the last two, and then everything else is just the average of that index, the one before, and the one after. {1, 2, 4, 8} would return {1.5, 2.33333, 4.66666, 6}.I'm currently getting everything fine, except am not getting the last number (i.e. '6').

public class Arrays {
public static void main(String [] args){
double [] a1 = {1, 2, 4, 8};
for (int i = 0; i < a1.length; i++)
System.out.println(a1[i]);

[code]....

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import java.util.Random;
public class shuffleDeck {
public static void main(String[] args) {
int[] Deck = new int[3];
for (int i=0; i<3; i++)

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public static void displayArray(int[] array)

This is what I have done
 
public class RandomIntegers {
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Feb 7, 2015

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Java Code:

public static float[] inputAllScores(float validScore) {
float[] diverScores = new float[7];
for (int i = 0; i < diverScores.length; i++) {
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} mh_sh_highlight_all('java');

[Code] .....

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Feb 20, 2014

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public static void main(String[] args) {
ggT(5);
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public static int ggT(int a, int b) {
 
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May 27, 2014

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Currently, my code so far just prints [Ljava.lang.String;@38cfdf and im stuck.

import java.util.Scanner;
 public class censorProgram {
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[Code] ....

I have to make new string array in the method and return words without four letters in the main method

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package com.abcd.arithmetic;
public class AllArithmatic
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}
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[code]....

till now i am able to read the lines, able to read the method names as well. but while putting the entire method signatures into an string array and the suffixing part , i am not able to proceed. The condition i have put to find out oerridden method is nnot working.i am stucked in comparing the duplicate method

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[Code] .....

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