public class MyMap extends LinkedHashMap<String, Serializable>
{
@Override
public Serializable get(String key)
{
return null;
}
}
error: method does not override or implement a method from a supertype
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3 Answers
Remove the @Override annotation. That will fix the error.
Keep in mind that if you actually want to override some parent method, this is not what you want to do. Instead, look for possible typos, error or type mismatch in your get method.
In your case, you probably want:
@Override
public Object get(Object key)
{
return null;
}
answered Dec 11, 2011 at 17:02
Pablo Santa Cruz
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Comments
The signature of get is public V get(Object key)
So you need to change the parameter type to Object instead of String.
Comments
The method you're trying to override has the following signature:
public Serializable get(Object key);
To override it, your method's argument therefore has to be of type Object, not String:
public class MyMap extends LinkedHashMap<String, Serializable>
{
@Override
public Serializable get(Object key)
{
return null;
}
}
5 Comments
Ufx
Why public V get(Object key) successfully overrides by @Override public Serializable put(String key, Serializable value) { } ?
NPE
@user1034253: I am sorry but I don't understand the question.
Ufx
public Serializable put(String key, Serializable value) - compiled, public Serializable get(String key) as you say is need replace String by Object
Paul Bellora
@aix - OP's asking why
put doesn't follow the same pattern. There's a popular post about this somewhere, we should just link it.Paul Bellora
@user1034253 - See this post: stackoverflow.com/questions/857420/…