Implementation of LRUCache using LinkedHashMap

LRUCache.java

import java.util.LinkedHashMap;
import java.util.Map;

public class LRUCache {

    int capacity;

    LinkedHashMap<String,String> cache;

    public LRUCache(int capacity) {
        this.capacity = capacity;
        this.cache = new LinkedHashMap<>(capacity,0.75f, true) {
            @Override
            protected boolean removeEldestEntry(Map.Entry<String, String> eldest) {
                return size() > capacity;
            }
        };
    }

    public String get(String key){
        return cache.getOrDefault(key,null);
    }

    public String put(String key, String value){
        return cache.put(key,value);
    }
}