HashSet建立及用迭代器遍歷
阿新 • • 發佈:2018-12-26
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); } }