Multimap＜K, V＞ multiMap 用法记录

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package com.example.ch6_2;
import java.util.Collections;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.Multimap;
public class testMultimap {
public static void main(String[] argv) {
Multimap<String, String> myMultiMap = ArrayListMultimap.create();
myMultiMap.put("Fruits", "Apple");
myMultiMap.put("Fruits", "Pear");
myMultiMap.put("Fruits", "Banana");
myMultiMap.put("Vegetables", "eggplant");
System.out.println("nmyMultiMap size:" + myMultiMap.size());
System.out.println("nmyMultiMap.get(Fruits): " + myMultiMap.get("Fruits"));
System.out.println("nmyMultiMap.get(Vegetables): " + myMultiMap.get("Vegetables"));
System.out.println("nkeys:");
for (String key : myMultiMap.keys()) {
System.out.println(key);
}
System.out.println("nvalues:");
for (String value : myMultiMap.values()) {
System.out.println(value);
}
myMultiMap.remove("Fruits", "Apple");
System.out.println("nmyMultiMap size:" + myMultiMap.size());
myMultiMap.removeAll("Fruits");
System.out.println("nmyMultiMap size:" + myMultiMap.size());
}
}

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Multimap<K, V> multiMap = ArrayListMultimap.create();

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Multimap<K, V> multiMap = LinkedListMultimap.create();