Delete an element from an array

import java.util.Scanner;
 class Insert_Array 
{
    public static void main(String[] args) 
    {
        int n, pos, x;
        Scanner s = new Scanner(System.in);
        System.out.print("Enter no. of elements you want in array:");
        n = s.nextInt();
        int a[] = new int[n+1];
        System.out.println("Enter all the elements:");
        for(int i = 0; i < n; i++)
        {
            a[i] = s.nextInt();
        }
        System.out.print("Enter the position where you want to insert element:");
        pos = s.nextInt();
        System.out.print("Enter the element you want to insert:");
        x = s.nextInt();
        for(int i = pos; i < n; i++)
        {
            a[i] = a[i+1];
        }
        //a[n-1] = x;
        System.out.print("After inserting:");
        for(int i = 0; i < n-1; i++)
        {
            System.out.print(a[i]+",");
        }
        //System.out.print(a[n]);
    }
}

Insert an element in an array

  1. import java.util.Scanner;
  2. public class Insert_Array 
  3. {
  4.     public static void main(String[] args) 
  5.     {
  6.         int n, pos, x;
  7.         Scanner s = new Scanner(System.in);
  8.         System.out.print("Enter no. of elements you want in array:");
  9.         n = s.nextInt();
  10.         int a[] = new int[n+1];
  11.         System.out.println("Enter all the elements:");
  12.         for(int i = 0; i < n; i++)
  13.         {
  14.             a[i] = s.nextInt();
  15.         }
  16.         System.out.print("Enter the position where you want to insert element:");
  17.         pos = s.nextInt();
  18.         System.out.print("Enter the element you want to insert:");
  19.         x = s.nextInt();
  20.         for(int i = (n-1); i >= (pos-1); i--)
  21.         {
  22.             a[i+1] = a[i];
  23.         }
  24.         a[pos-1] = x;
  25.         System.out.print("After inserting:");
  26.         for(int i = 0; i < n; i++)
  27.         {
  28.             System.out.print(a[i]+",");
  29.         }
  30.         System.out.print(a[n]);
  31.     }
  32. }

Pendulum Array

Input=1,2,3,4,5
Output=1,3,5,4,2


class sorthigh
{
  public static void main(String[]args)
{




   int a[]={1,2,3,4,5};
   int n=a.length;
   int k=0;
   if(n%2==0)
     k=0;
     else
     k=1;
     while(k<=n-1)
     {
         for(int i=k;i<n;i+=2)
         {
             if(i!=n-1)
             {
                 int t=a[i];
                 a[i]=a[i+1];
                 a[i+1]=t;
                }
            }
           k++;
        }
        for(int i=0;i<n;i++)
        {
            System.out.print(a[i]+" ");
        }
      
    }
}

Second largest number in java using ternary operator

 //Largest second number using ternary operator public class Main { public static void main(String[] args) { int a=5,b=6,c=7; int ...