I’m new in programming. I was building a rock paper scissors game. I got this problem. How do i restart it if user gives invalid choice. I tried restart(); command but nothing happens.

 Scanner sc = new Scanner(System.in);
        System.out.println("Hey player enter your name");
        String name = sc.nextLine();
        name = name.toLowerCase();
        int human_score=0;
        int pc_score=0;
        System.out.println("How many rounds u want to play "+name);
        byte rounds = sc.nextByte();
        if (rounds>10){
            System.out.println("Please choose up to 10 rounds. Above is not allowed");
            System.out.println("Exiting the game");
            System.exit(0);
        }
        int i =1;
        while (i<=rounds) {
            Random rand = new Random();
            int pc = rand.nextInt(3);
            pc += 1;
//            System.out.println(pc);
            System.out.println("What u choose?");

            int human = sc.nextInt();
            switch (human) {
                case 1 -> System.out.println("You choose rock");
                case 2 -> System.out.println("You choose paper");
                case 3 -> System.out.println("You choose scissors");
                default -> {
                    System.out.println("Invalid Choice");

                }

            }
            switch (pc) {
                case 1 -> System.out.println("I choose rock");
                case 2 -> System.out.println("I choose paper");
                case 3 -> System.out.println("I choose scissors");
            }
            if (human == pc) {

                System.out.println("Its a draw");
            } else if (human == 1 && pc == 2) {
                System.out.println("You lost. Better luck next time");
                pc_score+=1;
            } else if (human == 1) {
                System.out.println("Congrats. You won.");
                human_score+=1;
            } else if (human == 2 && pc == 1) {
                System.out.println("Congrats. You won.");
                human_score+=1;
            } else if (human == 2) {
                System.out.println("You lost. Better luck next time");
                pc_score+=1;
            } else if (human == 3 && pc == 1) {
                System.out.println("You lost. Better luck next time");
                pc_score+=1;
            } else if (human == 3) {
                System.out.println("Congrats. You won.");
                human_score+=1;
            }
            i+=1;
        }
        if (human_score==pc_score){
            System.out.println("Its a draw. Wanna play again?");
        } else if(human_score>pc_score){
            System.out.println("Congrats you won. Wanna challenge again?");
        }else System.out.println("Skill issue. This code is fine");

        System.out.println("PCt"+name+"n"+pc_score+"t"+human_score);

So, if someone enters a invalid choice I want it to restart the loop, like try again. I couldn’t find any way to do that(I am new, so don’t know about all methods). Can u help me