Java Math random integer generate in a range for playing scissor, rock, paper game

Question

We would like to generate random integer in a range for playing scissor, rock, paper game. 

import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner input = new Scanner(System.in);

    //your code here
  }
}





import java.util.Scanner;

public class Main {
  public static void main(String[] args) {
    Scanner input = new Scanner(System.in);

    // Generate a random integer 0, 1, or 2
    int computer = (int)(Math.random() * 3);

    // Prompt the user to enter a number 0, 1, or 2
    System.out.print("scissor (0), rock (1), paper (2): ");
    int user = input.nextInt();

    System.out.print("The computer is ");
    switch (computer)
    {
      case 0: System.out.print("scissor."); break;
      case 1: System.out.print("rock."); break;
      case 2: System.out.print("paper.");
    }

    System.out.print(" You are ");
    switch (user)
    {
      case 0: System.out.print("scissor"); break;
      case 1: System.out.print("rock"); break;
      case 2: System.out.print("paper ");
    }

    // Display result
    if (computer == user)
      System.out.println(" too. It is a draw");
    else
    {
      boolean win = (user == 0 && computer == 2) ||
                (user == 1 && computer == 0) || 
                (user == 2 && computer == 1);
      if (win)
        System.out.println(". You won");
      else
        System.out.println(". You lose");
    }
  }
}



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