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0votes
2answers
213views

How can I loop 2 methods together?

Question I am very new to Java and I am trying to learn as best as I can.The actual question of the problem I am trying to solve is in the picture above. Please do refer to the picture in case I am ...
Mosinmiloluwa Ojeyomi's user avatar
1vote
1answer
110views

Getting inputs recursively for matrix gives index out of border exception

I should write a java program that contains giving values to a matrix and printing the values of a matrix recursively. I tried this code,but everytime I give the input it gives index out of border ...
adabella asi's user avatar
0votes
1answer
1kviews

Convert a flat list into tree structure having the depth of each node

I'm using java and I have the need to convert a flat Set<Object> into a Set of Object which can contains others list of objects recursively. I receive this JSON data from the react front-end: [ ...
user2298581's user avatar
1vote
2answers
141views

Java dynamic nested loops

I have a map which contains variable length string list. e.g Map<String, List<String> map = new HashMap<>(); map.put("key", "key1, key2); map.put("name", "name1, name2, name3"); map....
Tharsan Sivakumar's user avatar
0votes
4answers
3kviews

Replacing nested FOR loops using recursion or any other solution

<?xml version="1.0"?> <Event> <Country>England</Country> <City>London</City> <City>Liverpool</City> <Code>DWW</Code> <ID>...
EdXX's user avatar
  • 890
0votes
1answer
126views

How can I convert these nested loops into recursive form?

I'm having trouble with trying to generate all possible combinations of a n*n grid. The code below shows how I would go about it using nested loops and a 2*2 grid. However, if I wanted to do the same ...
Hisham Mohammed's user avatar
-1votes
1answer
102views

Generate all unique 1-1 mappings between two lists of strings (Java) [duplicate]

How to you generate a set of all possible 1-1 mappings between two lists. I want each mapping to be unique, but am not too concerned about computation time (brute force is probably fine). Lists can be ...
user2069641's user avatar
3votes
1answer
1kviews

Series of nested loops without recursion

In Java, I have the following general code for integer d equal to 2, 3, 4, ..., dmax - up to a maximum number dmax : d < dmax (so this code is repeated for every value of d in that range): // d is ...
Sophie Sperner's user avatar
0votes
4answers
746views

Java: Combination of recursive loops which has different FOR loop inside; Output: FOR loops indexes

currently recursion is fresh & difficult topic for me, however I need to use it in one of my algorithms. Here is the challenge: I need a method where I specify number of recursions (number of ...
vvinjj's user avatar
25votes
12answers
26kviews

Cartesian Product of a List of Lists

I have a problem that is really kind of a general programming question, but my implementation is in Java, so I will provide my examples that way I have a class like this: public class Foo { ...
Chris Drappier's user avatar
3votes
5answers
5kviews

Turning a recursive function into a for loop?

Does every recursive function have an equivalent for loop? (Both achieve the same result). I have this recursive function: private static boolean recur(String word, int length) { if(length == 1 |...
Mazyod's user avatar
  • 22.6k
2votes
7answers
381views

Is a concurrency approach a good idea for speeding a long iteration?

I have an app that does an iteration to create points on a graph over time. While I'm gathering data for each point across the x-axis I also must execute a recursive lookup which effectually means I ...
Vinny's user avatar
1vote
1answer
3kviews

Recursive function in java - N nested loops with changing indicies

Similar to this: Is there any way to do n-level nested loops in Java? I want to create a recursive function, which generates N nested loops, where the indicies depend on the depth of the loop. So ...
Frederik Wordenskjold's user avatar

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