ArrayDemo.java

class ArrayDemo
{
    public static void main(String Arg[])
    {

// Ways of creating single dimension array

        int Arr1[] = {10,20,30,40};
//        int Arr2[4] = {10,20,30,40};    explicit size is not allowed in java

        int Arr3[] = new int[4];     //Dynamic memory allocation
        Arr3[0] = 10;
        Arr3[1] = 20;
        Arr3[2] = 30;
        Arr3[3] = 40;
        
        int Arr4[] = new int[]{10,20,30,40}; //dynamic memory with initialisation list

    }
}