Month: September 2022

[Solved] Why Bitset allows values distinct from 1 and 0?

by

BitSet logically represents a “vector of bits that grows as needed” (javadoc). When you create it via new BitSet(), you have all bits set to 0 (false). 0 5 10 | | | 000000000000… (virtually infinite sequence) Using set(x) you set to 1 (true) the bit at position x (where the first position is 0); … Read more

[Solved] Knockout bootstrap modal issue

by

Your code is nearly working. But there is one javascript issue, a global variable pollution, which prevents it from working. fixed your jsfiddle: http://jsfiddle.net/63tGP/3/ it fixed self = this; to var self = this; self = this; is same as window.self = this; the result is, at the end, the self in your addTask() always … Read more

[Solved] Why isn’t there a “

by

–> is not one operator, it is two; (post) decrement and less than. C is whitespace agnostic for the most part, so: x –> y /* is the same as */ x– > y <– is the same idea: x <– y /* is the same as */ x < –y Perhaps you are confusing … Read more

[Solved] How to cover a range using a set of ranges with minimal overlap?

by

Here is the greedy algorithm – always the best place to start. allocate all teams IF not all sections covered output -1 stop mark all teams non-critical flag_improved = true WHILE( flag_improved == true ) flag_improved = false find most expensive section find most expensive non-critical team on most expensive section IF team found that … Read more

[Solved] Why does SimpleDateFormat() return wrong month?

by

As noted by other people, there are two problems in your current code: Months are zero based. So, month 7 is August, not July =\ Year doesn’t start by default at 1900 but at 1970, but if you set the year by yourself you’ll get as year the same number you’re setting, in this case, … Read more

[Solved] how to remove all text before a pattern? [duplicate]

by

To solve this problem you can use a positive lookahead ‘.*(?=START)’, as follows: # load environment library(stringr) # create text vector text = c(‘hello guys this is it START hi’, ‘one two START this is good’, ‘a longer example. I cannot believe it! START hello’) # remove pattern text = str_remove(text, ‘.*(?=START)’) # print output … Read more

[Solved] What’s wrong to have empty lines in Java class? [closed]

by

Not at all. Empty lines do not matter at runtime, as the java compiler turns your source code into bytecode in the very first place. The only “consequence” of using empty lines will be the line number information that the compiler can include in the bytecode files. More empty lines, resulting in higher numbers. But … Read more