Java initialize large array with Max value

Question

How can I initialize an array of size 1000 * 1000 * 1000 * 1000 of all Integer.MAXVALUE?

for example, I want to make this int[][][][]dp = new int [1000][1000][1000][1000]; all have max value as later I need to compare a minimum.

I tried

int [] arr = new int arr[N];
Arrays.fill(arr,Integer.MAXVALUE);

but it doesn't work with multidimensional arrays, can anyone help?

Answer 1

You'll have to do this to fill your multi-dimensional array:

for (int i = 0; i < dp.length; i++) {
    for (int j = 0; j < dp[i].length; j++) {
        for (int k = 0; k < dp[j].length; k++) {
            Arrays.fill(dp[i][j][k], Integer.MAX_VALUE);
        }
    }
}

You won't however be able to initialize new int[1000][1000][1000][1000] unless you have at least 3.64 terabytes of memory. Not to mention how long that would take if you did have that much memory.