loops

问题 I'm having troubles accessing the objects displayed in the TableColumn Here's the code snippet where I set the graphics of one Column. Only want to show the Name of the Person object: (Any better/easier way in doing that is welcome) ownerColumn .setCellFactory(new Callback<TableColumn<Site, Person>, TableCell<Site, Person>>() { @Override public TableCell<Site, Person> call( TableColumn<Site, Person> param) { TableCell<Site, Person> ownerCell = new TableCell<Site, Person>() { @Override

问题 I wrote a skript to quickly create short preview clips from vides I recorded on timestamps that I found worth checking out later for cutting. My file with the timestamps is written like this FILE_NAME1#MM:SS MM:SS FILE_NAME2#MM:SS MM:SS MM:SS MM:SS example: MAH01728#02:47 03:34 03:44 05:00 06:08 06:55 The script looks like this: #!/bin/bash while read f do file=$(echo $f | cut -d"#" -f1) filename=${file}".MP4" timestamps=$(echo $f | cut -d"#" -f2) for time in $timestamps do ffmpeg -ss 00:$

问题 I wrote a skript to quickly create short preview clips from vides I recorded on timestamps that I found worth checking out later for cutting. My file with the timestamps is written like this FILE_NAME1#MM:SS MM:SS FILE_NAME2#MM:SS MM:SS MM:SS MM:SS example: MAH01728#02:47 03:34 03:44 05:00 06:08 06:55 The script looks like this: #!/bin/bash while read f do file=$(echo $f | cut -d"#" -f1) filename=${file}".MP4" timestamps=$(echo $f | cut -d"#" -f2) for time in $timestamps do ffmpeg -ss 00:$

问题 I wrote a skript to quickly create short preview clips from vides I recorded on timestamps that I found worth checking out later for cutting. My file with the timestamps is written like this FILE_NAME1#MM:SS MM:SS FILE_NAME2#MM:SS MM:SS MM:SS MM:SS example: MAH01728#02:47 03:34 03:44 05:00 06:08 06:55 The script looks like this: #!/bin/bash while read f do file=$(echo $f | cut -d"#" -f1) filename=${file}".MP4" timestamps=$(echo $f | cut -d"#" -f2) for time in $timestamps do ffmpeg -ss 00:$

问题 Im trying to add an input validation to this menu. When the user enters eg: 'a' or any input that is not a integer and with the given range, it must execute the catch block and loop again to prompt the user to enter again but instead it keeps looping infinitely after taking the input once. So it goes from executing the menu and just skipping over the input part and executes the catch block. Edit: it goes into infinite loop if i input anything that is not an integer. Scanner sc = new Scanner

问题 I am building a navigation menu from a list of pages. The table is like this: Table name: pages id | type | parent | name ------------------------------- 1, 1, null, root1 2, 1, null, root2 3, 2, 2, home 4, 2, 3, child 5, 2, 4, sub_child 6, 3, 5, sub_sub_child type: 1 = root page / site 2 = page 3 = ... My problem is that from any page, I have to find the root page. I have a column parent that refers to the parent page, except for the root pages. I can have multiple root pages in the table,

问题 I am an extreme beginner in Python and I am having a difficulty writing a very simple code. I am trying to write a simple code to generate 100 normally distributed number by using the function gauss with expectation 1.0 and standard deviation 0.005, and later store in an array that can be used to calculate the mean and standard deviation from those 100 sample. Here is my code: def uniformrandom(n): i=0 while i< n: gauss(1.0, 0.005) i = i + 1 return i Then I tried L = uniformrandom(100) The

问题 I am an extreme beginner in Python and I am having a difficulty writing a very simple code. I am trying to write a simple code to generate 100 normally distributed number by using the function gauss with expectation 1.0 and standard deviation 0.005, and later store in an array that can be used to calculate the mean and standard deviation from those 100 sample. Here is my code: def uniformrandom(n): i=0 while i< n: gauss(1.0, 0.005) i = i + 1 return i Then I tried L = uniformrandom(100) The

问题 I am an extreme beginner in Python and I am having a difficulty writing a very simple code. I am trying to write a simple code to generate 100 normally distributed number by using the function gauss with expectation 1.0 and standard deviation 0.005, and later store in an array that can be used to calculate the mean and standard deviation from those 100 sample. Here is my code: def uniformrandom(n): i=0 while i< n: gauss(1.0, 0.005) i = i + 1 return i Then I tried L = uniformrandom(100) The

问题 From what I understand, spacial locality has to do with nearby memory being used in the nearby future. However I was wondering if a loop is executed many times, does this lead to good spacial locality? Thanks in advance, and sorry if I'm hard to understand. 回答1: The number of iterations of a loop doesn't necessarily affect spatial locality. What the loop is doing does. In practice, the key to spatial locality really has to do with cache lines. In simple terms, a program that limits its