Recent questions tagged HashMap

0 votes

573 views

1 answer

hashmap - Map<String, HashSet<String>> to JSON, & Pretty Print

I'm trying to make my dataset correspond to this example: var family = [{ "name" : "Jason", "age" : "24", " ... value) { this.value = value; } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

421 views

1 answer

hashmap - How to Store unique objects to avoid the duplicates in java Set?

How to Store unique objects to avoid the duplicates in java Set? For example Consider Employee object which (Employee Id, ... best way's to do? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

391 views

1 answer

hashmap - Java many to many association map

I have two classes, ClassA and ClassB, as well as a "many to many" AssociationClass. I want a structure that ... I don't need persistence stuff. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

434 views

1 answer

hashmap - Populate an enum with values from database

I have a table which maps String->Integer. Rather than create an enum statically, I want to populate the ... database's AUTOINCREMENT column). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

502 views

1 answer

hashmap - Ruby Hash Whitelist Filter

I am trying to figure out how I can filter out key and value pairs from one filter into another For example I want ... , not what I don't want. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

374 views

1 answer

hashmap - Is there a SoftHashMap in Java?

I know there is a WeakHashMap in java.util, but since it uses WeakReferences for everything, which is only ... in the Java RT Package. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

545 views

1 answer

hashmap - Error thrown citing match arms with incompatible types when pattern matching an Option

I am fairly new to Rust and cannot get my head around this confusing error. I am simply trying to match on ... compiler is having with my code? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

400 views

1 answer

hashmap - Java On-Memory Efficient Key-Value Store

I have store 111 million key-value pairs (one key can have multiple values - maximum 2/3) whose key are 50 ... we can save space there also. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.2k views

1 answer

hashmap - Swagger complex response model with dynamic key value hash maps

I'm struggling with the syntax of swagger to describe a response type. What I'm trying to model is a hash map ... as the value of the hash map. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

678 views

1 answer

hashmap - clojure convert lazy-seq to hash map

I'm a clojure beginner. How do I create a map from a lazySeq? (def fields [:name :age :color]) (def values ["joe ... ? ;; (get mymap :age) ;; 32 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

463 views

1 answer

hashmap - I would like to see a hash_map example in C++

I don't know how to use the hash function in C++, but I know that we can use hash_map. Does g++ ... What is a simple example using hash_map? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

390 views

1 answer

hashmap - Java 8 Grouping with Multiple Keys

I am looking for some help in grouping a list of objects from a list with multiple keys. Basically, I have a ... Thanks in advance for the help. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

471 views

1 answer

hashmap - Efficient way to Handle ResultSet in Java

I'm using a ResultSet in Java, and am not sure how to properly close it. I'm considering using the ResultSet to ... )); } } return row; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

497 views

1 answer

hashmap - Hash Map in Python

I want to implement a HashMap in Python. I want to ask a user for an input. depending on his input I am ... ; streetno.put("5","Kohli") See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

429 views

1 answer

hashmap - How to merge Ruby hashes

How can I merge these two hashes: {:car => {:color => "red"}} {:car => {:speed => "100mph"}} To get: {: ... color => "red", :speed => "100mph"}} See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Just Browsing Browsing

Most popular tags