Rock beats scissors (smashes it) but loses to paper (paper wraps rock). Scissors

Question

Rock beats scissors (smashes it) but loses to paper (paper wraps rock). Scissors beats paper (cuts it) but loses to rock (see previous). If both players pick the same choice, we have a tie. After both players have picked either rock, paper, or scissors, they compare their choices and see who wins. As many rounds may be played. Usually a target score is set and first to attain that score wins.

Design a game of Rock, Paper, Scissors based on this "framework":

/**
* A player in the game of rock, paper, scissors.
*/
public class Player {

// Instance variables:

private String name; //the name of the player
private …

// Constructors:

/**
* Create a new Player with the specified name …
*/
public Player( String name … ) {
…
}

// Queries:

/**
* The name of the Player.
*/
public String name() {
…
}

:

// Commands:

:

} //end Player


/**
* Text-based user interface for the rock, paper, scissors game
*/
public class RockTUI {

/**
* Create an instance of the user interface with …
*/
public RockTUI( … ) {
…
}
//more next page

/**
* Start the user interface
*/
public void start() {
…
}

:

} //end RockTUI

Explanation / Answer

import java.util.*; public class rockpaperscissor {static String moves[]={"rock","paper","scissors"}; static Random randomGenerator = new Random(); public static void main(String[] args) {Scanner in = new Scanner(System.in); boolean again=true; int usermove; int computermove; while(again) {usermove= user(in); computermove=computer(); score(usermove,computermove); again=conclusion(in); } } public static int user(Scanner in) {char a; int move=0; System.out.print("Choose your weapon (r,p,s): "); a=in.nextLine().charAt(0); a=Character.toLowerCase(a); while(a!='r'&&a!='p'&&a!='s') {System.out.print("Choose your weapon (r,p,s): "); a=in.nextLine().charAt(0); a=Character.toLowerCase(a); } switch(a) {case 'r': move=0; break; case 'p': move=1; break; case 's': move=2; break; } return move; } public static int computer() {int move=randomGenerator.nextInt(3); System.out.println("I chose "+moves[move]); return move; } public static void score(int user,int computer ) { if(user==computer) System.out.println("Tie!"); else if(user==0&&computer==2) System.out.println("You break my sissors. you win!"); else if(user==0&&computer==1) System.out.println("I cover your rock. you lose!"); else if(user==1&&computer==2) System.out.println("I cut your paper. you lose!"); else if(user==1&&computer==0) System.out.println("You cover my rock. you win!"); else if(user==2&&computer==0) System.out.println("I break your sissors, you lose!"); else System.out.println("You cut my paper. you win!"); return; } public static boolean conclusion(Scanner in) {char a; System.out.println(" Good game. Play again!(Y/N) "); a=in.nextLine().charAt(0); a=Character.toLowerCase(a); while(a!='y'&&a!='n') {System.out.print("invalid entry Play again(Y/N)? "); a=in.nextLine().charAt(0); a=Character.toLowerCase(a); } if(a=='y') return true; else return false; } }

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