hashmap Archives - Page 2 of 5

Is a Python dictionary an example of a hash table?

One of the basic data structures in Python is the dictionary, which allows one to record “keys” for looking up “values” of any ...

May 23, 2022
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How does a Java HashMap handle different objects with the same hash code?

As per my understanding I think: It is perfectly legal for two objects to have the same hashcode. If two objects are equal ...

May 22, 2022
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What is the significance of load factor in HashMap?

HashMap has two important properties: size and load factor. I went through the Java documentation and it says 0.75f is the initial load ...

May 20, 2022
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Best way to convert strings to symbols in hash

What’s the (fastest/cleanest/straightforward) way to convert all keys in a hash from strings to symbols in Ruby? This would be handy when parsing ...

May 19, 2022
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How can I combine two HashMap objects containing the same types?

I have two HashMap objects defined like so: HashMap<String, Integer> map1 = new HashMap<String, Integer>(); HashMap<String, Integer> map2 = new HashMap<String, Integer>(); I ...

May 19, 2022
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Sort hash by key, return hash in Ruby

Would this be the best way to sort a hash and return Hash object (instead of Array): h = {"a"=>1, "c"=>3, "b"=>2, "d"=>4} ...

May 18, 2022
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What happens when a duplicate key is put into a HashMap?

If I pass the same key multiple times to HashMap’s put method, what happens to the original value? And what if even the ...

May 16, 2022
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How can I convert JSON to a HashMap using Gson?

I’m requesting data from a server which returns data in the JSON format. Casting a HashMap into JSON when making the request wasn’t ...

May 16, 2022
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java.lang.OutOfMemoryError: GC overhead limit exceeded [duplicate]

This question already has answers here: Error java.lang.OutOfMemoryError: GC overhead limit exceeded (22 answers) Closed 2 years ago. I am getting this error ...

May 15, 2022
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