Bidirectional Map Google Guava Collections : java

maven dependencie

    com.google.guava
    guava
    12.0

Java Code

...
...
import com.google.common.collect.BiMap;
import com.google.common.collect.HashBiMap;
...
...

        BiMap<String, String> bimap = HashBiMap.create();
        bimap.put("xxx", "123");
        bimap.put("yyy", "456");
        
        
        System.out.println(bimap.get("xxx")); 
        //123
        System.out.println(bimap.get("yyy")); 
        //456

        System.out.println(bimap.inverse().get("123"));
        //xxx
        System.out.println(bimap.inverse().get("456"));
        //yyy