Need help on not generating same random with 2 arrays

When I generate 5 random numbers, they get placed in the cards array. The number generated goes in the pack array case and replaces it by one. I want to add a condition that if the pack array is 1, to generate another random number. My goal is to generate 5 random numbers that do not repeat themselves. How would I do that ? Thanks

Here is the code :

    int[] pack = new int[52];
    int[] cards = new int[5];

    for (int i = 0; i < pack.length - 1; i++) {
        System.out.print(pack[i] + " | "); // pack array with the 52 available cards
    }
    System.out.println();

    Random give = new Random();
    for (int i = 0; i < cards.length; i++) {
        cards[i] = give.nextInt(5); //generates a random number to place in the cards array
        pack[cards[i]] = 1; //the pack case gets the value one meaning the generated number can't be generated again
        System.out.println(cards[i]);
    }

    for (int i = 0; i < pack.length - 1; i++) {
        System.out.print(pack[i] + " | "); // pack array : cases with the number 1 mean that the number can't be generated again
    }