I am getting “local variable defined in the enclosing scope must be final or effective final” as highlighted below. I am not sure how to fix this out in lambda expression. Answer Try replacing this: by this: The entitlePackage will be effectively final. Also your code will be much easier to read and maintain.
Tag: collections
Java.util.Collection.Shuffle not producing random results when using a seeded Random
Given the following code: When I set numberOfItems to 4 and starting with a seed of 1, when dumping returnValue as Json I get: Incrementing seed, the fourth item in the list is always 3. Seed = 5: Seed = 10: Seed = 255: I am seeding Random as I need the result to be deterministic based on seed, but
Javers – comparison String, Collection and Boolean with defined rules
I have 2 classes: And also my own defined comparators(rules): These comparators are defined so that an empty String is treated the same as null, an empty Collection is treated the same as null, and a Boolean false is treated the same as null. In the main method I try to compare 2 objects so as to check if the
Way to overcome fail-fast iterator in HashMap
In competitive programming, I was solving a given problem – given an array nums of non-negative integers, and a target sum S, we have to find out the number of ways we can obtain target sum from sum of given numbers (where each nums[i] can be taken as nums[i] or -nums[i]. Although I came across some solutions that mainly relied
How To Store Values in Hashmap (comma Separated) with Same Key using Java Stream API?
I have a object named EntityObjectDTO like below: This AttributeType is an enum and can have values (RAW,REFERRED,ORIGINAL). I am trying to store all the attributes names and dataType into Hashmap of String key and value. This DataType can be duplicate as well. Input: Expected in a HashMap: {“Vehicle”,”name1,name2″} {“Person”,”name3″} This is what I tried: But by this I am
why MultiMap.add() is producing like {Test_Case: [[1.0, 2.0, 3.0]]} but it should be {Test_Case: [1.0, 2.0, 3.0]}
This is the piece of code where key is of type String and value is List, but when i collecting all list elements and adding same to MultiMap object its adding as [[]], The intension of using MultiMap is due to im having same key with different values (here “$.name” is having multiple values) this is the output im getting
How to Avoid nested for Loops in java to get the heirarchical data?
// This method will return the list of reference names, in this method I wrote the code using nested //for-loops this handle only 3 subfolders set what if there is one more subfolder and how to handle it //without for loops, OverAll I should handle it dynamically //for-loops this handle only 3 subfolders set what if there is one more
ConcurrentModificationException when iterate through ImmutableMap.copyof()
Currently, I have a problem when I frequently iterating through a HashMap (1-time per second) I add new element to the map on the main thread and iterate the map on the other thread I return an ImmutableMap.copyOf() to iterate through it, and sometimes I add a new element to the map. But it throws me a ConcurrentModificationException My pseudo-code:
Trying to sort a Double Collection
I am trying to sort a Collection. I cant seem to get my code to work with what I have found online. Collection: [104.131119, 104.188937, 93.174548, 100.533096, 97.902247, 98.608619, 93.380054, 106….
Best way to sort customerAddress in such a way that all primary address are at the top and others at the bottom
I am trying to sort the below list in such a way that primary address is at the top of the list followed by other address (p.getIsPrimary is a Boolean value and can be null). Is there any other way …