javascript find unique values in array
// usage example:
var myArray = ['a', 1, 'a', 2, '1'];
var unique = myArray.filter((v, i, a) => a.indexOf(v) === i);
// unique is ['a', 1, 2, '1']javascript find unique values in array
// usage example:
var myArray = ['a', 1, 'a', 2, '1'];
var unique = myArray.filter((v, i, a) => a.indexOf(v) === i);
// unique is ['a', 1, 2, '1']how to create an array with unique values
import java.util.Random;
public class GenRandArray {
//Recommend reseeding within methods
static Random rand = new Random();
public static void fillInt( int[] fillArray ) {
//seeds the random for a new random each method call
rand.setSeed(System.currentTimeMillis());
for(int i = 0; i < fillArray.length; i++)
{
fillArray[i]= rand.nextInt();
/* for loop to check to make sure that none of the previous
numbers added are the same as the one just added. */
for (int j = 0; j < i; j++)
{
/* if so we need to redo the last random number by
moving i back one index to be re-set */
if (fillArray[i] == fillArray[j])
{
i--;
}
}
}
}
}unique numbers in array
import java.util.ArrayList;
public class UniqueNumbersInArray {
public static void main(String[] args) {
int arr[] = { 4,5,5,4,5,6,5,8,4,7};
ArrayList<Integer> uniqueArr = new ArrayList<Integer>();
for (int i = 0; i < arr.length; i++) {
int k = 0;
if (!uniqueArr.contains(arr[i])){
uniqueArr.add(arr[i]);
k++;
for (int j = i; j < args.length ; j++) {
if (arr[i]==arr[j]){
k++;
}
}
System.out.println(arr[i]);
System.out.println(k);
}
}
}
}Copyright © 2021 Codeinu
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