visual studio代码在JAVA中迭代哈希映射时出现编译错误

Question

迭代HashMap

我试图在我的M1 Macbook Air机器上的visual studio代码中执行以下代码。但这些错误。尽管代码在在线IDE中执行

/Library/Java/JavaVirtualMachines/jdk-15.0.1。jdk/Contents/Home/bin/java——启用预览-XX:+showcodetailsinexceptionmessages-Dfile。encoding=UTF-8-cp“/Users/shoumik/Library/Application Support/Code/User/workspaceStorage/c7518cbb3ce46c96e642c654a9524389/redhat.java/jdt_ws/jdt.ls java project/bin”测试 线程“main”java中出现异常。lang.错误：未解决的编译问题： 类型映射中的entrySet（）方法<；字符串，整数>；指缺少的类型集

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

import javax.swing.text.html.parser.Entity;

class Test {
    public static void main(String[] args) {
        Map<String, Integer> hm = new HashMap<String, Integer>();
        hm.put("abc", 123);
        hm.put("def",321);
        hm.put("ghi",33);

        
        Iterator<Entry<String,Integer>> hmIterator = hm.entrySet().iterator();

        while(hmIterator.hasNext()) {
            Entry<String,Integer> entries = hmIterator.next();
            System.out.println("Key is" + entries.getKey());
            System.out.println("Value is " + entries.getValue());
        }
    }
}