Question

Could someone please help me with this?

Thank you

Game Description: The popular rock-paper-scissors game is usually played between two people in which each player simultaneously chooses either a rock or a paper or scissors (usually with an outstretched hand). The rule of the game is simple: rock crushes scissors, scissors cut paper, and paper wraps rock. If both the players choose the same object, then it ends in a tie. (See this link for more details.) Problem Description: You have to play the rock-paper-scissors game against the computer for 100 times. You receive the following rewards each time you play the game: • You get $5 if you win • You get $2 if there is a tie • You get $-1 if you lose The computer randomly chooses rock, paper, or scissors in each game. Rather than deciding what to play (rock, paper or scissors) for each individual game, you decide to use the following strategy: • Play (1) scissors - (i) rock - (iii) paper sequentially and repeatedly, over and over Example: • Round 1: Play scissors • Round 2: Play rock • Round 3: Play paper • Round 4: Play scissors ... Write a program to play the rock-paper-scissors game against the computer for 100 times using the above strategy. You are required to calculate the total reward that you accumulate after playing the game 100 times. Hint: Use loops to simulate the game 100 times. In each iteration, generate a random integer 1, 2, or 3 representing rock, paper, and scissors, respectively and use that number to know what computer has played (i.e. 1 is for rock, 2 is for paper, 3 is for scissors). Using your strategy described above, figure out whether you win, lose or tie the game in each iteration. Maintain a variable to keep track of the amount that you have won and keep updating that amount in each iteration depending on the result of the game. You can generate a random integer 1, 2, or 3 as follows: int randomNum = 1 + (int)(3*Math.random());

Answer 1

Explanation:

Math.random() in java:

Math.random() is a method that returns double type where value is greater than or equal to 0.0 and it is less than 1.0

The following statement can be used to generate numbers between 1 and 3.

int randomNum=1+(int)(3*Math.random());

The numbers 1, 2 and 3 are generated randomly here.

The rock , paper , scissor are represented by 1, 2 and 3 respectively.

Program:

import java.lang.Math.*;
public class Main
{
   public static void main(String[] args) {
       int randomNum=0; //Declaration of variables
       int sum=0;
      
       for(int i=0;i<100;i++){ //loop repeates for 100 times
       randomNum=1+(int)(3*Math.random()); //generate random number
       if(i%3==0){ //System chooses scissor
       if(randomNum==1) //If random number is 1, it is rock and user wins.
       sum=sum+5;
       else if(randomNum==2) //If random number is 2, it means paper, then the user loses.
       sum=sum-1;
       else if(randomNum==3) //If random number is 3, it means scissors, then it is a tie.
       sum=sum+2;
       }
       else if(i%3==1){  //System chooses rock
       if(randomNum==1) //If random number is 1, it means rock, then it is a tie.
       sum=sum+2;
       else if(randomNum==2) //If random number is 2, it means paper, then the user wins.
       sum=sum+5;
       else if(randomNum==3) //If random number is 3, it means scissors, then the user loses.
       sum=sum-1;
       }
       else if(i%3==2){ //System chooses paper
       if(randomNum==1) //If random number is 1, it means rock, then the user loses.
       sum=sum-1;
       else if(randomNum==2) //If random number is 2, it means paper, then it is a tie.
       sum=sum+2;
       else if(randomNum==3) //If random number is 3, it means scissors, then the user wins.
       sum=sum+5;
       }
      
       }
       System.out.print("The total reward is ");
       System.out.println(sum);
   }
}

Explanation:

The loop is iterated for 100 items using iteration variable i.

When i%3==0 this means that computer chooses scissors to play.

Now, we check the random number generated.

If random number is 1, it means rock, then the user wins.

If random number is 2, it means paper, then the user loses.

If random number is 3, it means scissors, then it is a tie.

When i%3==1  this means that computer chooses rock to play.

Now, we check the random number generated.

If random number is 1, it means rock, then it is a tie.

If random number is 2, it means paper, then the user wins.

If random number is 3, it means scissors, then the user loses.

When i%3==2 this means that computer chooses paper to play.

Now, we check the random number generated.

If random number is 1, it means rock, then the user loses.

If random number is 2, it means paper, then it is a tie.

If random number is 3, it means scissors, then the user wins.

Screenshot:

The execution of the program is attached below along with the output. Please follow it for reference.

1 import java.lang. Math.; 2 public class Main 3 { public static void main(String[] args) { int randomNum=0; int sum=0; for(int i=0;i<100;i++){ randomNum=1+(int) (3*Math.random(); if(i%3==0) { if(randomNum==1) sum=sum+5; else if(randomNum==2) sum=sum-1; else if(randomNum==3) sum=sum+2; NOTAMESIMAMO else if(i%3==1){ if(randomNum==1) sum=sum+2; else if(randomNum==2) sum=sum+5; else if(randomNum==3) sum=sum-1; else if(i%3==2){ if(randomNum=1) sum=sum-1; else if(randomlium=2) sum-sum: 2

Main.java 27 28 29 if(randomNum=1) sum=sum-1; else if(randomNum==2) sum-sum+2; else if(randomNum==3) sum=sum+5; My many mommy 35 36 System.out.print("The total reward is "); System.out.println(sum): 37 38 39 40