輸入三個字串，並看裡邊是否含有“Kobe”。

import java.util.Scanner;
import java.util.HashSet;
import java.util.Iterator;

public class Main{
    @SuppressWarnings("unchecked")
	public static void main(String[] args){
	
    //write your own codes
    	HashSet<String> set = new HashSet();
    	Scanner scan = new Scanner(System.in);
    	for(int i=0;i<3;i++){
    		String s = scan.next();
    		set.add(s);
    	}
    	Iterator<String> it = set.iterator();
    	boolean flag = false;
    	String str = "Kobe";
    	while(it.hasNext()){
    		String st = it.next();
    		if(st.equals(str)){
    			flag = true;
    			break;
    		}
    	}
    	System.out.println(flag);
	}
}