编辑代码

import java.util.Map;
import java.util.HashMap;
public class Demo14 {
    public static void main(String[] args ){
        Map<String, String> map = new HashMap<>();
        map1.put("name","--哥");
        map1.put("age","30");
        map1.put("sex","男");

        String name =map.get("name");
        String age = map.get("age");
        String sex = map.getOrDefault("sex","男");
        String height = map.getOrDefault("height","0");
        System.out.println("[name]="+name+",[age]="+age+",[sex]="+sex",[height]=);
    }
}