/**

* @program JavaBooks

* @description: map

* @author: mf

* @create: 2020/08/04 22:11

*/

package lmd;

import java.util.HashMap;

import java.util.Map;

public class test6 {

public static void main(String[] args) {

// 假设有一个数字到对应英文单词的Map，请输出Map中的所有映射关系．

// java7

HashMap<Integer, String> map = new HashMap<>();

map.put(1, "one");

map.put(2, "two");

map.put(3, "three");

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

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

}

map.forEach((k, v) -> System.out.println(k + "=" + v));

}

}