Answers for "add array index java"

1

Java program to insert an element at specific position in an array

import java.util.Scanner;
public class InsertElement
{
   public static void main(String[] args) 
   {
      int number, position, insert;
      Scanner sc = new Scanner(System.in);
      System.out.println("Please enter number of elements in array: ");
      number = sc.nextInt();
      int[] arrNumbers = new int[number + 1];
      System.out.println("Please enter " + number + " elements: ");
      for(int a = 0; a < number; a++)
      {
         arrNumbers[a] = sc.nextInt();
      }
      System.out.println("Please enter position to insert element: ");
      position = sc.nextInt();
      System.out.println("Please enter element you want to insert: ");
      insert = sc.nextInt();
      for(int a = (number - 1); a >= (position - 1); a--)
      {
         arrNumbers[a + 1] = arrNumbers[a];
      }
      arrNumbers[position - 1] = insert;
      System.out.println("After inserting element: ");
      for(int a = 0; a < number; a++)
      {
         System.out.print(arrNumbers[a] + ",");
      }
      System.out.print(arrNumbers[number]);
      sc.close();
   }
}
Posted by: Guest on February-18-2021
1

java insert at index

myList.add(int index, E elemen);
Posted by: Guest on February-19-2021
4

java array add element

// A better solution would be to use an ArrayList which can grow as you need it. 
// The method ArrayList.toArray( T[] a ) 
// gives you back your array if you need it in this form.

List<String> where = new ArrayList<String>();
where.add(element);
where.add(element);

// If you need to convert it to a simple array...

String[] simpleArray = new String[ where.size() ];
where.toArray( simpleArray );
Posted by: Guest on September-30-2020
0

how to add to an array

var ar = ['one', 'two', 'three'];
ar[3] = 'four'; // add new element to ar
Posted by: Guest on November-24-2020

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