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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
43,540
questions
56,739
answers
573
users
Recent questions tagged java
1
answer
24
views
How to get the Nth digit of a number from the right in Java
asked
1 day
ago
by
avibootz
java
java-get-n-digit-of-number-from-right
get-n-digit-of-number-from-right
2
answers
24
views
How to remove file extension in Java
asked
2 days
ago
by
avibootz
java
java-remove-file-extension
remove-file-extension
11
answers
148
views
How to initialize array elements in Java
asked
5 days
ago
by
avibootz
java
java-array
java-initialize-array-elements
initialize-array-elements
1
answer
35
views
How to convert int to Integer in java
asked
5 days
ago
by
avibootz
java
java-convert-int-integer
convert-int-integer
2
answers
54
views
How to compare floating-point values safely in Java
asked
Oct 7
by
avibootz
java
java-floating-point
java-compare-floating-point-safely
compare-floating-point-safely
1
answer
47
views
How to generate a range of floating-point numbers in Java
asked
Oct 4
by
avibootz
java
java-floating-point
java-generate-range-floating-point-numbers
generate-range-floating-point-numbers
1
answer
51
views
How to hash a string in Java
asked
Oct 4
by
avibootz
java
java-string
java-hash-string
hash-string
1
answer
55
views
How do you find the position of the most significant bit (MSB) of an unsigned integer in Java
asked
Sep 30
by
avibootz
java
java-position-msb-integer
position-msb-integer
1
answer
50
views
How to use XOR to swap two characters in a string in Java
asked
Sep 29
by
avibootz
java
java-xor-swap-two-characters-string
xor-swap-two-characters-string
1
answer
79
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
79
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
73
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
79
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
65
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
70
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
79
views
How to compare two dates in Java
asked
Sep 20
by
avibootz
java
java-compare-two-dates
compare-two-dates
1
answer
77
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
71
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
77
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
93
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
82
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
86
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
86
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
77
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
86
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
95
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
130
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
99
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
95
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
93
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
86
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
100
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
127
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
93
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
101
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
83
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
95
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
92
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
91
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
99
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
99
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
115
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
101
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
105
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
105
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
99
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
118
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
106
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
117
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
134
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
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