package basic.collection;

import java.util.LinkedHashMap;

import java.util.Map;

import java.util.TreeMap;

import java.util.TreeSet;

/**

* @author yangqc

*/

public class TestTreeMap {

public static void main(String[] args) {

System.out.println("/////////////下面是TreeMap////////////////");

TreeMap<String, String> treeMap = new TreeMap<>();

treeMap.put("yangqc", "123");

treeMap.put("shijia", "31");

for (Map.Entry<String, String> entry : treeMap.entrySet()) {

System.out.println(entry.getKey() + "*" + entry.getValue());

}

System.out.println("/////////////下面是TreeSet////////////////");

TreeSet<String> treeSet = new TreeSet<>();

treeSet.add("bbc");

treeSet.add("bad");

for (String key : treeSet) {

System.out.println(key);

}

System.out.println("/////////////下面是LinkHashMap////////////////");

LinkedHashMap<String, String> linkedHashMap = new LinkedHashMap<>(1);

linkedHashMap.put("yangqc", "123");

linkedHashMap.put("shijia", "211");

for (Map.Entry<String, String> entry : linkedHashMap.entrySet()) {

System.out.println(entry.getKey() + "*" + entry.getValue());

}

}

}