剪刀石头布

剪刀石头布

package test;

import java.util.Scanner;

public class ScissorStoneCloth {

    /**
     * @param args
     */
    public static void main(String[] args) {
        String[] tips = new String[]{"scissor","stone","cloth"};
        System.out.println("input your gesture (0-scissor, 1-stone, 2-cloth)");
        
        int computer = -1;
        Scanner in = new Scanner(System.in);
        int man = -1;
        
        while(true){
            computer = (int) (Math.random()*3);

            System.out.print(">>");
            
            try{
                man = Integer.parseInt(in.nextLine());
            }catch(NumberFormatException e){
            }
            
            if(man == -1 || man <0 || man >2){
                System.out.println("\ninvalid input ");
                continue;
            }
            System.out.println("your gesture :"+tips[man]+"  ;computer gesture :"+tips[computer]);
            int result = (man - computer +4)%3 -1;
            if(result > 0){
                System.out.println("you win!");
            }else if(result == 0){
                System.out.println("draw");
            }else{
                System.out.println("you lose");
            }
        }
    }

}