public class ArrayTraversal { public static void main(String[] args) { int[] Arr = new int[50000000];//1st Method of declaration of An Array Arr[400] = 203;//index = 400 and value in this index is 203; Arr[400] = 45;//Redeclaration of an array is also possible //Once if we declared the size of an array then it can not redeclare again System.out.println(Arr[400]); int[] myArr = {10,20,30,40};//Declaration of An Array method 2 System.out.println(myArr[0]); System.out.println(myArr[1]); System.out.println(myArr[2]); System.out.println(myArr[3]); //Another method of declare an Array int[] myAr ={}; myAr[1]=15; myAr[2]=14; myAr[3]=11; myAr[4]=12; int index = 1; while(index <= myAr.length){ System.out.println(myAr[index]);//This method of printing the values of an array is known as Array Traversal index++; } } }