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| Code Block | ||
|---|---|---|
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public class Container<K,V> {
Map<K,V> map;
public void initialize() {
if(map == null) {
synchronized(this) {
if(map != null) {
map = new HashMap<K,V>();
}
}
}
}
public V get(Object k) {
if(map != null) {
return map.get(k);
} else {
return null;
}
}
}
|
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