Chapter 3 Exercise 17 Introduction to Java Programming Tenth

Chapter 3 Exercise 17, Introduction to Java Programming, Tenth Edition Y. Daniel LiangY.
*3.17 (Game: scissor, rock, paper) Write a program that plays the popular scissor-rock-paper game. (A scissor can cut a paper, a rock can knock a scissor, and a paper can wrap a rock.) The program randomly generates a number 0 , 1 , or 2 representing scissor, rock, and paper. The program prompts the user to enter a number 0 , 1 , or 2 and displays a message indicating whether the user or the computer wins, loses, or draws. Here are sample runs:
scissor (0), rock (1), paper (2): 1
The computer is scissor. You are rock. You won
scissor (0), rock (1), paper (2): 2
The computer is paper. You are paper too. It is a draw.

Solution

class Scissor-rock-paper

{

public static void main(String[] args) {
Scanner s = new Scanner(System.in);
int computer, user;

System.out.print(\"scissor (0), rock (1), paper (2):\");
user = s.nextInt();
computer = (int)(Math.random() * 3);

if(computer == 0) {
System.out.print(\" computer is scissor.\");
} else if(computer == 1) {
System.out.print(\"computer is rock.\");
} else if(computer == 2) {
   System.out.print(\" computer is paper.\");
}

if((user == 0 && computer == 2) || (user == 1 && computer == 0) || (user == 2 && computer == 1)) {
if(user == 0) {
System.out.print(\" You are scissor. You won.\");
} else if(user == 1) {
System.out.print(\" You are rock. You won.\");
} else if(user == 2) {
System.out.print(\" You are paper. You won.\");
}
} else if(user == computer) {
if(user == 0) {
System.out.print(\" You are scissor too. It is a draw.\");
} else if(user == 1) {
System.out.print(\" You are rock too. It is a draw.\");
} else if(user == 2) {
System.out.print(\" You are paper too. It is a draw.\");
}
} else {
if(user == 0) {
System.out.print(\" You are scissor. You lose.\");
} else if(user == 1) {
System.out.print(\" You are rock. You lose.\");
} else if(user == 2) {
System.out.print(\" You are paper. You lose.\");
}
}
}}