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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
42,844
questions
55,671
answers
573
users
Recent questions tagged JAVA
1
answer
115
views
How to encode and decode a string to base64 in Java
asked
Jul 10, 2025
by
avibootz
java
java-encode
java-base64
java-decode
1
answer
127
views
How to remove the letters from word1 if they do not exist in word2 with Java
asked
Jul 9, 2025
by
avibootz
java
java-string
2
answers
193
views
How to check elapsed milliseconds using Thread.Sleep in for loop with Java
asked
Jul 9, 2025
by
avibootz
java
java-sleep
1
answer
143
views
How to remove the letters from word1 if they exist in word2 with Java
asked
Jul 8, 2025
by
avibootz
java
java-string
3
answers
169
views
How to print a HashSet in Java
asked
Jul 6, 2025
by
avibootz
java
java-hashset
4
answers
248
views
How to pad a string on both sides in Java
asked
Jul 5, 2025
by
avibootz
java
java-string
1
answer
158
views
How to increment an integer represented as an integer array of digits by one in Java
asked
Jul 2, 2025
by
avibootz
java
java-array
1
answer
136
views
How to allocate an array of type byte with length of N millions in Java
asked
Jul 1, 2025
by
avibootz
java
java-allocation
java-array
1
answer
117
views
How to use switch statement with strings in Java
asked
Jul 1, 2025
by
avibootz
java
java-switch
2
answers
143
views
How to get the fraction and exponent of a real number in Java
asked
Jun 30, 2025
by
avibootz
java
java-fraction
java-exponent
1
answer
148
views
How to calculate the mean and the standard deviation of an array of floating-point values in Java
asked
Jun 29, 2025
by
avibootz
java
java-standard-deviation
java-mean
1
answer
147
views
How to calculate the sum of squares of an array of floating-point values in Java
asked
Jun 29, 2025
by
avibootz
java
java-array
1
answer
85
views
How to compute the hypotenuse h of the triangle in Java
asked
Jun 28, 2025
by
avibootz
java
java-triangle
1
answer
131
views
How to convert a string with either , or . as decimal/thousand separators into a float in Java
asked
Jun 27, 2025
by
avibootz
java
java-string
java-convert
1
answer
133
views
How to declare a real variable with at least 20 digits in Java
asked
Jun 26, 2025
by
avibootz
java
1
answer
147
views
How to check if any value in a one-dimensional array a is larger than x using anyMatch in Java
asked
Jun 25, 2025
by
avibootz
java
java-array
java-anymatch
1
answer
118
views
How to generate an n x n matrix filled with elements from 1 to N^2 in spiral order in Java
asked
Jun 24, 2025
by
avibootz
java
java-matrix
2
answers
143
views
How to schedule the execution of a function in 5 seconds with Java
asked
Jun 23, 2025
by
avibootz
java
java-execution
3
answers
135
views
How to calculate the center of a rectangle in Java
asked
Jun 22, 2025
by
avibootz
java
java-rectangle
3
answers
136
views
How to check if a point is inside a rectangle in Java
asked
Jun 22, 2025
by
avibootz
java
java-point
java-rectangle
2
answers
157
views
How to print array elements in groups of 2 with Java
asked
Jun 20, 2025
by
avibootz
java
java-array
1
answer
118
views
How to detect if a 32-bit or 64-bit architecture in Java
asked
Jun 20, 2025
by
avibootz
java
java-os
2
answers
189
views
How to create a random sublist from a list in Java
asked
Jun 20, 2025
by
avibootz
java
java-list
2
answers
124
views
How to declare a constant string in Java
asked
Jun 19, 2025
by
avibootz
java
java-constant
1
answer
104
views
How to format an integer with zero-padding in Java
asked
Jun 18, 2025
by
avibootz
java
java-padding
1
answer
87
views
How to find the average between RGB colors c1 and c2 in Java
asked
Jun 18, 2025
by
avibootz
java
java-color
1
answer
149
views
How to remove string trailing path separator in Java
asked
Jun 16, 2025
by
avibootz
java
java-string
1
answer
122
views
How to match the first word after an expression in a string using RegEx with Java
asked
Jun 14, 2025
by
avibootz
java
java-regex
1
answer
153
views
How to remove the trailing slashes from a string in Java
asked
Jun 13, 2025
by
avibootz
java
java-string
1
answer
152
views
How to remove all non-ASCII characters from a string in Java
asked
Jun 12, 2025
by
avibootz
java
java-string
java-ascii
1
answer
147
views
How to calculate the date six months from the current date in Java
asked
Jun 11, 2025
by
avibootz
java
java-date
1
answer
126
views
How to replace the characters !@#$%^*_+\= in a string using RegEx with Java
asked
Jun 11, 2025
by
avibootz
java
java-regex
1
answer
143
views
How to find the first occurrence of a pattern in a string from some starting position in Java
asked
Jun 10, 2025
by
avibootz
java
java-string
1
answer
97
views
How to group Anagrams from an array of strings in Java
asked
Jun 9, 2025
by
avibootz
java
java-anagram
3
answers
155
views
How to check if date1 is before date2 in Java
asked
Jun 8, 2025
by
avibootz
java
java-date
1
answer
151
views
How to check if a string is blank (empty, null, or contains only whitespace) in Java
asked
Jun 7, 2025
by
avibootz
java
java-string
1
answer
138
views
How to replace consecutive characters with only one using RegEx in Java
asked
Jun 6, 2025
by
avibootz
java
java-regex
1
answer
188
views
How to get OS name on Unix-like systems with Java
asked
Jun 6, 2025
by
avibootz
java
java-os
1
answer
120
views
How to multiply two integers represented as strings and return the result also as a string in Java
asked
Jun 5, 2025
by
avibootz
java
java-multiply
1
answer
158
views
How to get the number of bytes of a variable in Java
asked
Jun 4, 2025
by
avibootz
java
java-byte
1
answer
204
views
How to sort each column of a matrix with strings in Java
asked
Jun 2, 2025
by
avibootz
java
java-matrix
java-sort
1
answer
156
views
How to fill a 3x3 grid to be a valid Sudoku grid in Java
asked
Jun 1, 2025
by
avibootz
java
java-sudoku
1
answer
193
views
How to calculate the future occurrences of Friday the 13th in Java
asked
May 31, 2025
by
avibootz
java
java-date
1
answer
181
views
How to check if a string contains only letters, numbers, underscores and dashes in Java
asked
May 31, 2025
by
avibootz
java
java-regex
1
answer
127
views
How to check if a 3x3 grid is a valid Sudoku grid in Java
asked
May 30, 2025
by
avibootz
java
java-sudoku
2
answers
219
views
How to rotate a matrix 90 degrees clockwise in Java
asked
May 29, 2025
by
avibootz
java
java-matrix
1
answer
203
views
How to check if a matrix columns contain numbers without repetition in Java
asked
May 28, 2025
by
avibootz
java
java-matrix
1
answer
214
views
How to sort a string with digits and letters (digits before letters) in Java
asked
May 27, 2025
by
avibootz
java
java-sort
java-string
3
answers
273
views
How to convert String to character array (Character[]) in java
asked
May 26, 2025
by
avibootz
java
java-convert
2
answers
209
views
How to convert character array (Character[]) to String in java
asked
May 26, 2025
by
avibootz
java
java-convert
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