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Programming & Software Q&A | CollectiveSolver
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Welcome to collectivesolver - Programming & Software Q&A with code examples. A website with trusted programming answers. All programs are tested and work.
Contact: aviboots(AT)netvision.net.il
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Recent questions tagged java
43,401
questions
56,365
answers
573
users
Recent questions tagged java
1
answer
11
views
How to generate a range of floating-point numbers in Java
asked
19 hours
ago
by
avibootz
java
java-floating-point
java-generate-range-floating-point-numbers
generate-range-floating-point-numbers
1
answer
6
views
How to hash a string in Java
asked
1 day
ago
by
avibootz
java
java-string
java-hash-string
hash-string
1
answer
21
views
How do you find the position of the most significant bit (MSB) of an unsigned integer in Java
asked
4 days
ago
by
avibootz
java
java-position-msb-integer
position-msb-integer
1
answer
24
views
How to use XOR to swap two characters in a string in Java
asked
5 days
ago
by
avibootz
java
java-xor-swap-two-characters-string
xor-swap-two-characters-string
1
answer
40
views
How to find the intersection of two arrays (values that exist in both arrays) in Java
asked
Sep 28
by
avibootz
java
java-intersection-two-arrays
intersection-two-arrays
1
answer
50
views
How to check whether the letters of a word exist in a string (order doesn't matter) in Java
asked
Sep 26
by
avibootz
java
java-letters-of-word-exist-in-string-order-doesnt-matter
letters-of-word-exist-in-string-order-doesnt-matter
1
answer
43
views
How to find the element with minimum occurrences in an array with Java
asked
Sep 25
by
avibootz
java
java-element-minimum-occurrences-array
element-minimum-occurrences-array
1
answer
49
views
How to convert multiple date formats to YYYY-MM-DD in Java
asked
Sep 24
by
avibootz
java
java-convert-convert-date-formats-to-yyyy-mm-dd
convert-convert-date-formats-to-yyyy-mm-dd
1
answer
47
views
How to sort a list of string‑based dates in Java
asked
Sep 23
by
avibootz
java
java-sort-list-string-based-dates
sort-list-string-based-dates
1
answer
46
views
How to print a number with a thousand separator as spaces in Java
asked
Sep 22
by
avibootz
java
java-number-thousand-separator-spaces
number-thousand-separator-spaces
1
answer
60
views
How to compare two dates in Java
asked
Sep 20
by
avibootz
java
java-compare-two-dates
compare-two-dates
1
answer
66
views
How to extract the last N digits from a number in Java
asked
Sep 18
by
avibootz
java
java-extract-last-n-digits-number
extract-last-n-digits-number
1
answer
64
views
How to extract all floating-point numbers from a string of words in Java
asked
Sep 17
by
avibootz
java
java-extract-all-floating-point-numbers-string
extract-all-floating-point-numbers-string
1
answer
66
views
How to extract the digits of a floating-point number before and after the decimal point from a string in Java
asked
Sep 17
by
avibootz
java
java-extract-digits-floating-point-string
extract-digits-floating-point-string
1
answer
74
views
How to select N unique random values that appear exactly once in an existing list with Java
asked
Sep 13
by
avibootz
java
java-n-unique-random-values-appear-once-in-list
n-unique-random-values-appear-once-in-list
1
answer
68
views
How to select N unique random indices from an existing array in Java
asked
Sep 12
by
avibootz
java
java-select-n-unique-random-indices-array
select-n-unique-random-indices-array
1
answer
74
views
How to compute the factorial of a number greater than 20 in Java
asked
Sep 12
by
avibootz
java
java-compute-factorial-of-number-greater-20
compute-factorial-of-number-greater-20
1
answer
74
views
How to find common words in two strings with Java
asked
Sep 11
by
avibootz
java
java-string
java-find-common-words-two-strings
find-common-words-two-strings
1
answer
67
views
How to generate all trigrams (3-character sequences) from a given word in Java
asked
Sep 9
by
avibootz
java
java-generate-all-trigrams-given-word
generate-all-trigrams-given-word
1
answer
75
views
How to compare two float arrays for exact equality in Java
asked
Sep 9
by
avibootz
java
java-compare-two-float-arrays-exact-equality
compare-two-float-arrays-exact-equality
1
answer
85
views
How to compare two float arrays using a tolerance in Java
asked
Sep 8
by
avibootz
java
java-compare-two-float-arrays-tolerance
compare-two-float-arrays-tolerance
2
answers
113
views
How to split text without spaces into a list of words using dictionary-based segmentation in Java
asked
Sep 6
by
avibootz
java
java-split-text-without-spaces-into-words-dictionary
split-text-without-spaces-into-words-dictionary
1
answer
89
views
How to convert numbers from 0 to 999,999,999,999,999 (up to 999 trillion) into English words in Java
asked
Sep 5
by
avibootz
java
java-convert-numbers-0-999999999999999-english-words
convert-numbers-0-999999999999999-english-words
1
answer
83
views
How to parse a table into a binary tree in Java
asked
Sep 4
by
avibootz
java
java-parse-table-into-binary-tree
parse-table-into-binary-tree
1
answer
83
views
How to implement a queue using two stacks in Java
asked
Sep 4
by
avibootz
java
java-implement-queue-two-stacks
implement-queue-two-stacks
1
answer
77
views
How to declare, initialize, and print a medium complexity, varied, feature‑rich data structure in Java
asked
Sep 2
by
avibootz
java
-declare-initialize-print-medium-complexity-data-structure
declare-initialize-print-medium-complexity-data-structure
1
answer
85
views
How to sort a list of classes that contain nested classes using custom comparison logic in Java
asked
Sep 1
by
avibootz
java
java-sort-list-of-classes-contain-nested-classes
sort-list-of-classes-contain-nested-classes
1
answer
103
views
How to sort a list of records that contain nested records using custom comparison logic in Java
asked
Sep 1
by
avibootz
java
java-sort-list-of-records-contain-nested-records
sort-list-of-records-contain-nested-records
1
answer
79
views
How to find the N most frequent non‑stopwords in a text in Java
asked
Aug 30
by
avibootz
java
java-n-most-frequent-non-stopwords-text
n-most-frequent-non-stopwords-text
1
answer
89
views
How to find the starting index of all occurrences of a word in a string in Java
asked
Aug 30
by
avibootz
java
java-find-starting-index-all-occurrences-word-string
find-starting-index-all-occurrences-word-string
1
answer
71
views
How to convert any digital storage unit into all others (B, KB, MB, GB, TB, PB, EB, ZB, YB) in Java
asked
Aug 27
by
avibootz
java
java-convert-any-digital-storage-unit-into-all-others
convert-any-digital-storage-unit-into-all-others
1
answer
78
views
How to write the 7 Boom game. If a number is divided by 7 or includes the digit 7, the user writes Boom in Java
asked
Aug 26
by
avibootz
java
java-7-boom-game
7-boom-game
1
answer
81
views
How to write the Tic-Tac-Toe game in Java
asked
Aug 26
by
avibootz
java
java-tic-tac-toe-game
tic-tac-toe-game
1
answer
81
views
How to initialize different types of arrays to zero in Java
asked
Aug 26
by
avibootz
java
java-initialize-array
java-initialize-different-types-of-arrays-to-zero
initialize-different-types-of-arrays-to-zero
1
answer
91
views
How to generate a random RGBA color and opacity in Java
asked
Aug 25
by
avibootz
java
java-generate-random-rgba-color-opacity
generate-random-rgba-color-opacity
1
answer
88
views
How to generate a series of unique HEX colors in Java
asked
Aug 23
by
avibootz
java
java-generate-series-unique-hex-colors
generate-series-unique-hex-colors
2
answers
100
views
How to print the numbers 0 to 31 by changing 1 bit each time in Java
asked
Aug 21
by
avibootz
java
java-print-0-31-changing-1-bit-each-time
print-0-31-changing-1-bit-each-time
1
answer
86
views
How to find the first and last 20‑digit prime numbers in Java
asked
Aug 21
by
avibootz
java
java-first-last-20-digit-prime-numbers
first-last-20-digit-prime-numbers
1
answer
90
views
How to find the first and last 10‑digit prime numbers in Java
asked
Aug 21
by
avibootz
java
java-first-last-10-digit-prime-numbers
first-last-10-digit-prime-numbers
1
answer
86
views
How to find the next number in the series 1, 8, 27, 64, 125, 216 using Java
asked
Aug 20
by
avibootz
java
java-find-next-number-in-series-1-8-27-64-125-216
find-next-number-in-series-1-8-27-64-125-216
1
answer
84
views
How to generate N random 1s in a zero-based matrix with Java
asked
Aug 20
by
avibootz
java
java-generate-n-random-1-zero-based-matrix
generate-n-random-1-zero-based-matrix
1
answer
106
views
How to initialize a list with a range of numbers in Java
asked
Aug 17
by
avibootz
java
java-initialize-list-range-of-numbers
initialize-list-range-of-numbers
1
answer
91
views
How to initialize an array with a range of numbers in Java
asked
Aug 17
by
avibootz
java
java-initialize-array-range-of-numbers
initialize-array-range-of-numbers
1
answer
106
views
How to do modulo multiplication for 64‑bit values without using BigInteger in Java
asked
Aug 16
by
avibootz
java
java-modulo-multiplication-64-bit-values-without-biginteger
modulo-multiplication-64-bit-values-without-biginteger
1
answer
118
views
How to remove every N‑th element from a list in Java
asked
Aug 15
by
avibootz
java
java-remove-every-n-element-list
remove-every-n-element-list
2
answers
139
views
How to build sparse array in Java
asked
Aug 14
by
avibootz
java
java-build-sparse-array
build-sparse-array
1
answer
123
views
How to check if a given array is a sparse array in Java
asked
Aug 14
by
avibootz
java
java-check-sparse-array
check-sparse-array
1
answer
122
views
How to get the first N digits of a BigInteger in Java
asked
Aug 13
by
avibootz
java
java-get-first-n-digits-biginteger
get-first-n-digits-biginteger
1
answer
123
views
How to extract and sort numbers from a string containing numbers and text in Java
asked
Aug 12
by
avibootz
java
java-extract-sort-numbers-string
extract-sort-numbers-string
1
answer
106
views
How to convert radians to degrees and degrees to radians in Java
asked
Aug 11
by
avibootz
java
java-convert-radians-degrees-degrees-radians
convert-radians-degrees-degrees-radians
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