View difference between Paste ID: DCYxTW5T and sSkAaNkQ

 package class1;
 
 import java.util.Scanner;
 
 public class tester {
 
 	public static void main(String[] args) {
 		int[] arrInt = {6,7,4,2};
 		System.out.println("size of:"+arrInt.length);
 		arrInt = addNum(arrInt,8);
 		System.out.println("size of:"+arrInt.length); //5
 	}
 
 	public static int[] addNum(int[] oldArr,int newNum)
 	{
 		int[] returnArr = new int[oldArr.length+1];
 		for (int counter=0;counter<oldArr.length;counter+=1)
 		{
 			returnArr[counter]=oldArr[counter];
 		}
 		returnArr[returnArr.length-1]=newNum;
 		return returnArr;
 	}
 }