Java program to concatenate / join two array

This program will show you how to concatenate or join two arrays of different lengths.

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import java.util.*;
public class Main
{
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        int pos=0;
        System.out.println("Enter 1st array size");
        int n1=sc.nextInt();
        int arr1[]=new int[n1];
        
        System.out.println("Enter 2nd array size");
        int n2=sc.nextInt();
        int arr2[]=new int[n2];
        
        int n=n1+n2;
        int arr[]=new int[n];
        
        
        System.out.println("Enter 1st array elements");
        for(int i=0;i<n1;i++)
        {
            arr1[i]=sc.nextInt();
 
 
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Java program to concatenate / join two array

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