How to create a list of dummy files in Java?

How to create a list of dummy files in Java?

By : user2956995
Date : November 22 2020, 03:03 PM
will be helpful for those in need I would recommend not mocking File and instead make fake values. Methods that act on File instances tend to care about the file path and/or whether the file exists, so the most straight-forward way to do that is to use real instances.
Here is an example using JUnit4 that creates a list of three File instances to refer to files that don't exist in a directory that does:
code :
public class ExampleTest {
  public TemporaryFolder testFolder = new TemporaryFolder();

  private final Foo foo = new Foo();

  public void shouldFailIfFilesDoNotExist() {
    List<File> files = Lists.newArrayList(

Share : facebook icon twitter icon
Create a list using dummy variables in R

Create a list using dummy variables in R

By : Mr No Idea
Date : March 29 2020, 07:55 AM
To fix this issue I have three dummy variables that indicate the source of data , I'd do something like this:
code :
df = data.frame(DS1 = c(1,0,0), 
                DS2 = c(0,1,1), 
                DS3 = c(0,0,1))
df$source = apply(df == 1, 1, function(x) paste(names(df)[x], collapse = "|"))
> df
  DS1 DS2 DS3  source
1   1   0   0     DS1
2   0   1   0     DS2
3   0   1   1 DS2|DS3
How to quickly create dummy variables from list in R

How to quickly create dummy variables from list in R

By : Tushar
Date : March 29 2020, 07:55 AM
will be helpful for those in need We can use grepl with patterns as the Names' column in 'df2' (looped withsapply) to return a logical vector for the 'Group' column, coerce to binary withas.integerandcbind` with the first dataset ('df1').
code :
cbind(df1, sapply(df2$Names, function(x) as.integer(grepl(x, df1$Group))))
#               Group Score.Diff Anthony Kyle Zack
#Row 1   Kyle, Steve         15       0    1    0
#Row 2 Matthew, Tony         12       0    0    0
#Row n Anthony, Zack        -10       1    0    1
df1 <- structure(list(Group = c("Kyle, Steve", "Matthew, Tony",
 "Anthony, Zack"
), Score.Diff = c(15L, 12L, -10L)), .Names = c("Group", "Score.Diff"
), class = "data.frame", row.names = c("Row 1", "Row 2", "Row n"))

df2 <- structure(list(Names = c("Anthony", "Kyle", "Zack")), 
   .Names = "Names", class = "data.frame", row.names = c("Row 1", "Row 2",  "Row n"))
Create dummy variable from list

Create dummy variable from list

By : Sümeyra Ayengin
Date : March 29 2020, 07:55 AM
This might help you I have a pandas dataframe with a column named “Notes”. It has entries like the example below. I would like to create dummy variable columns based on a list: , Check with str.findall then get_dummies
code :
   Borrower  debts  loan
0         0      0     1
1         1      0     0
2         0      1     0
            Note  Borrower  debts  loan
0       loan lll         0      0     1
1  llll Borrower         1      0     0
2    ......debts         0      1     0
df=pd.DataFrame({'Note':['loan lll','llll Borrower','......debts']})
Create a dummy of a folder with a lot of files

Create a dummy of a folder with a lot of files

By : user3637911
Date : March 29 2020, 07:55 AM
hop of those help? Alright here is a non recursive solution with multithreading:
We rely on EnumerateFileSystemEntries to get recursivly everything in a given folder. We split every paths in two groups: folders and files. We create every folders in parallel in the dummy folder We create every files in parallel in the dummy folder
code :
public static async Task Main()
    var oldPath = "foo"; // folder to copy
    var newPath = "dummy"; // folder to create dummies

    var oldDirectory = Path.GetFullPath(oldPath);
    var oldDirectoryParent = Path.GetDirectoryName(oldDirectory);
    var newDirectory = Path.Combine(oldDirectoryParent, newPath);

    var paths = Directory.EnumerateFileSystemEntries(oldDirectory, "*.*", SearchOption.AllDirectories);
    var filesAndFolders = paths.ToLookup(Directory.Exists);

    var directoryTasks = filesAndFolders[true]
        .Select(path => newDirectory + path.Substring(oldDirectory.Length))
    await Task.WhenAll(directoryTasks);

    var fileTasks = filesAndFolders[false]
        .Select(path => newDirectory + path.Substring(oldDirectory.Length))
    await Task.WhenAll(fileTasks);

public static Task<FileStream> CreateAsync(string path) => Task.Run(() => File.Create(path));
public static Task<DirectoryInfo> CreateDirectoryAsync(string path) => Task.Run(() => Directory.CreateDirectory(path));
bash create dummy files and folders based on real files

bash create dummy files and folders based on real files

By : Rogério Custódio
Date : March 29 2020, 07:55 AM
around this issue Rather than using `cmd`, $(cmd) is the new style and should be used if possible, it's clearer and can be nested too. However I wouldn't use either.
The issue your having is, I suspect, to do with you're mkdir, which requires that all the top level directories exist before creating the base ie
Related Posts Related Posts :
  • Why onNext has no effect
  • IntelliJ Idea 2018.2 no option for importing gradle project
  • Remove a negative element from an array w/o array.copy
  • Could this prevent overflow in Java?
  • In Java Swing, can I receive Caret events in real time?
  • I need help not using brute force when using JFrames and DrawWindows
  • How do I refactor ArrayList<MyClass> into MyClassLIst?
  • My program keeps saying that the method cannot be resolved
  • BubbleSort -my code returns random addresses
  • JavaFX components inside HTML?
  • Character in Java game not responding
  • Working around access denied in a FileWalking Tree in Java7
  • How to avoid if/else when using multple suppliers?
  • How to pass object from table cell editor to Table Model?
  • Paypal Sandbox payment state pending
  • sejda-console.bat passing parameters with spaces
  • Multiple Consumers Spring Kafka
  • Bitbucket pipeline: environmental variables in build.gradle file not recognized
  • Java static enum method to return a default enum value
  • What is the complexity of empty for loop?
  • Group randomly List of Lists as N subsets with K elements in each
  • How to set texture on a shape drawn by glDrawArrays()?
  • How to make a jlabel resizable according to the window
  • Java Mathematical Expression Syntax
  • assigning values to characters in java
  • Method overriding and Inheritance in java
  • given a set of lists/groups with a series of number, find matching numbers
  • Connection to HID USB device (keyboard and mouse) in android
  • Inject HttpServletRequest in CDI SessionScoped bean
  • Pool game in java - ball collision algorithm
  • Focus ScrollView to selected position programmatically - Android
  • Is it hibernate bug?
  • Glib memory allocation error
  • Android Proguard - step by step
  • Setting the pivot point of a JPanel to its center
  • java check time is greater time
  • how to save a screenshot (matlab)
  • Anti-aliasing filled shapes in libgdx
  • Gwt custom text box having baloon popup
  • How to change date dynamically for each element in an Array
  • JPanel won't add the JLabel text?
  • how to access the .properties file in ant if it is in different location
  • Reduce application memory footprint
  • java.lang.ClassCastException: javax.mail.Session cannot be cast to javax.mail.Session
  • What is the exact purpose of calling System.exit() in java
  • How to do you get output from Javascript into Java using ScriptEngine
  • Java replaceAll() method to escape special characters
  • Java (Removing a 'keyword' from the alphabet)
  • Format BigDecimal in Spring
  • iterating checkbox values stored in array using EL
  • Java - Jackcess API with .accde(MS Access) format
  • Alternative for some of Struts 1 methods in Struts 2
  • javax.crypto JDK source code, again
  • Spring Roo - Command 'service' not found
  • antlr4: ATN version 2 expected 3
  • Deploy GlassFish using Netbeans generate java.net.MalformedURLException: Bad URL path
  • why is wait() called for loop in Thread.join() of Java?
  • Java JAXB marshall into DOM Document
  • Why JDBI 3 @ColumnName annotation doesn't work?
  • Java SimpleDateformatter with 10 decimals after the seconds, cannot convert to Date
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org