如何使用从value
获得的Map
并使用key
作为Map
来查找薪水,以便在另一个bryan
中找到薪水 }。
示例从第一张地图获取名称 - salary
并显示第二张地图中的20000
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.Set;
public class twomaps {
public static void main(String [] args)
{
LinkedHashMap <Integer, String> hmap = new LinkedHashMap <Integer, String>();
LinkedHashMap <String, String> hmap2 = new LinkedHashMap <String, String>();
hmap.put(22, "bryan");
hmap.put(11,"Savi");
hmap2.put("16000", "Savi");
hmap2.put("20000", "bryan");
// i know this part is not correct but was writing something is better than nothing
boolean b = hmap.values().contains("bryan");
if(b==true){
if(hmap2.values().equals(hmap2))
}
}
}
require_once("sql.php");
答案 0 :(得分:0)
您可以使用以下代码执行此操作,但最好的方法是,创建Employee
类型并将employee
个对象存储到map
中,这将真正使事情更清晰,面向对象。
//check if both the maps contain the "bryan"
if(hmap.containsValue("bryan") && hmap2.containsValue("bryan")) {
//iterate over the hmap2 using the keys
for(String key : hmap2.keySet()) {
//if the value is bryan, then get the key, which is the salary
if(hmap2.get(key) != null && hmap2.get(key).equals("bryan")) {
System.out.println(key);
}
}
}
答案 1 :(得分:0)
试试这个简单的:
String name1 = "bryan";
hmap2.forEach((salary, name2) -> {
if (name2.equals(name1)) {
System.out.println(String.format("Salary for %s is %s", name1, salary));
}
});