package s;

import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;

public class d
{

	private int a;
	private boolean b;
	private String c;

	public static void main(String[] args)
	{
		Class s = d.class;
		Field[] ds = s.getDeclaredFields();
		for (Field x : ds)
		{
			x.setAccessible(true);
			if (x.getGenericType().toString().equals("int"))
			{
				System.out.println("hhhhh");
			}
			System.out.println(x.getGenericType().toString());
		}
		String s1 = "这是一个测试字符串,你觉得好玩吗?";
		String s2 = "测试测试,觉得?";
		List<Character> l = new ArrayList<>();
		filterByHashSet(s1, s2, l);
		for (int i = 0; i < l.size(); i++)
		{
			System.out.println("相同的字符:" + l.get(i));
		}
		String packagename = "java.util";
	}

	// 利用HashSet进行 查找
	public static void filterByHashSet(String str1, String str2, Collection<Character> result)
	{
		// 利用Java的TreeSet进行排序
		HashSet<Character> tree1 = new HashSet<Character>();
		for (char ch : str1.toCharArray())
		{
			tree1.add(ch);
		}

		// 结果集
		for (char ch : str2.toCharArray())
		{
			// 查找相同的字符
			boolean contain = tree1.contains(ch);
			if (contain)
			{
				// 加入结果集
				if (!result.contains(ch))
					result.add(ch);
			}
		}
	}
}