weak_hash_map.entrySet()

// Java代码示例entrySet()方法
import java.util.*;
 
public class Weak_Hash_Map_Demo {
    public static void main(String[] args)
    {
 
        // 创建空WeakHashMap
        Map<Integer, String> weak_hash = new WeakHashMap<Integer, String>();
 
        // 将字符串值映射到整数键
        weak_hash.put(10, "Geeks");
        weak_hash.put(15, "4");
        weak_hash.put(20, "Geeks");
        weak_hash.put(25, "欢迎");
        weak_hash.put(30, "You");
 
        // 显示WeakHashMap
        System.out.println("Initial Mappings are: " + weak_hash);
 
        // 使用entrySet()获得集合视图
        System.out.println("The set is: " + weak_hash.entrySet());
    }
}

初始映射为：{30=You，15=4，10=Geeks，25=欢迎，20=Geeks}
集合是：[30=You，15=4，10=Geeks，25=欢迎，20=Geeks]

// Java代码示例entrySet()方法
import java.util.*;
 
public class Weak_Hash_Map_Demo {
    public static void main(String[] args)
    {
 
        // 创建空WeakHashMap
        Map<String, Integer> weak_hash = new WeakHashMap<String, Integer>();
 
        // 将整数值映射到字符串键
        weak_hash.put("Geeks", 10);
        weak_hash.put("4", 15);
        weak_hash.put("Geeks", 20);
        weak_hash.put("欢迎", 25);
        weak_hash.put("You", 30);
 
        // 显示WeakHashMap
        System.out.println("Initial Mappings are: " + weak_hash);
 
        // 使用entrySet()获得集合视图
        System.out.println("The set is: " + weak_hash.entrySet());
    }
}

初始映射为：{欢迎=25，4=15，You=30，Geeks=20}
The set is: [欢迎=25，4=15，You=30，Geeks=20]