make an array java

1int intArray[];    //declaring array
2intArray = new int[20];  // allocating memory to array
3//OR
4int[] intArray = new int[20]; // combining both statements in one

1int[] array = new int[/*size*/];
2// Works for double, char, etc.

1int[] array1 = new int[5]; //int array length 5
2String[] array2 = new String[5] //String array length 5
3double[] array3 = new double[5] // Double array length 5
4

1int[] intArray = new int[]{ 1,2,3,4,5,6,7,8,9,10 }

1//method 1
2int[] age = new int[3];
3        age[0] = 1;
4        age[1] = 3;
5        age[2] = 6;
6
7        for (int i=0; i < 3; i++)
8            System.out.println(age[i]);
9
10//method 2
11        int[] num = {3,3,5};
12        //int num[] = {3,3,5}; also works the same
13
14        System.out.println(num[0]);

1//you can do it like this
2int[] arr = {10, 20, 30, 40};
3//or this
4int arr = new int[4];