All Questions
Tagged with square-bracket java
10 questions
-2
votes
2
answers
342
views
Meaning of two double brackets ([][]) in Java
What is the role of a pair of double brackets ([][]) in Java?
reference code(Leetcode 1351. Count Negative Numbers in a Sorted Matrix):
class Solution {
public int countNegatives(int[][] grid) {
...
0
votes
1
answer
317
views
Regex to parse multi-brace (and brackets) string
I am currently working on an import feature in a Java project and am receiving objects as a string. A structure similar to JSON is being used here. Objects are enclosed in curly braces and lists go in ...
0
votes
0
answers
284
views
Override toString() method to remove Square brackets? [] [duplicate]
EDIT
I changed toString method like this and now it works.
@Override
public String toString(){
Mylist.forEach((a) -> {
System.out.print(a+" ");
});
return "";
}
There is a ...
- 406
-1
votes
1
answer
3k
views
Java: square brackets when declaring HashMap?
I'm trying to adapt code from here and I can't figure out why they've declared and instantiated their HashMaps using square brackets. Here's some simplified sample code:
class CommunityStructure {
...
- 439
0
votes
2
answers
5k
views
How to use square brackets for math in Java?
While converting a mathematical formula to Java, I encountered square brackets (I found them in the formula). I don't know what they mean in mathematics, because I'm no math expert, just a 14-year old ...
- 3,042
1
vote
3
answers
1k
views
Java: regex to find outer square brackets pairs
I would like to find the content of all the outer square brackets pairs in a string.
If an outer pair has an inner pair then it should not be matched separately.
For example string: [abc][123][cde[...
- 11
0
votes
0
answers
555
views
StringTokenizing an expression with brackets in Java
I'm doing homework for my data structures class and ran into a snag at a certain point. Basically, I have an expression like
(varx + vary*varz[(vara+varb[(a+b)*33])])/55
and I have to store the ...
0
votes
2
answers
182
views
Java // No match with RegExp and square brackets
I have a string like
Berlin -> Munich [label="590"]
and now I'm searching a regular expression in Java that checks if a given line (like above) is valid or not.
Currently, my RegExp looks like \\...
- 81
0
votes
1
answer
6k
views
square bracket characters in email address
When we receive a MimeMessage which contains recipient InternetAddresses containing square brackets, we get 'javax.mail.internet.AddressException: Local address contains illegal character in string' ...
- 2,517
1
vote
3
answers
1k
views
Find text in square brackets but not in parentheses
If I have a string like this (from a Wiki-markup) that I need to parse in Java:
this link (is [[ inParen ]] and) (this) one is [[ notInParen ]]
I'd like to use regex to extract the texts inside the [...
- 1,600