Learn tocheck if a directory is empty, or contains any files, in Java using NIO APIs. 1. UsingFiles.list() TheFiles.list(dirPath)returns a lazily populatedStreamof files and directories(non-recursive) in a given path. We can use thestream.findAny()method thatreturns an emptyOptionalif th...
Use str.isEmpty() to Check if a String Is Empty in Java The simplest way to check if a given string is empty in Java is to use the built-in method of String class - isEmpty(). The below example illustrates this: public class MyClass { public static void main(String args[]) { ...
= null && !error.isEmpty()) { // throw exception if error stream throw new RuntimeException(error); } System.out.println(result); // better to use e.g. Slf4j return result; // return result for optional additional processing } catch (IOException e) { throw new RuntimeException(e);...
assertFalse(string.isEmpty()); assertThat(string.toCharArray(), is(not(emptyArray()));// (although this didn't compile) My question is: is there a better way of checking this - something like: assertThat(string, is(not(empty()))? In hamcrest 1.3 you can usingMatchers#isEmptyString: ...
the first is the index of an element you want to replace, and the second is the new value you want to insert. You can use this method as long as your ArrayList is notimmutable, I mean, not created using theCollections.unmodifiableList(), in such case theset()method throwsjava.lang.Uns...
How to use a custom HTTP client com.nimbusds.oauth2.sdk.http.*;com.nimbusds.oauth2.sdk.util.*;net.jcip.annotations.*;org.apache.http.*;org.apache.http.client.methods.*;org.apache.http.entity.*;org.apache.http.impl.client.*;org.apache.http.util.*;java.io.*;java.net.*;java.nio....
% GIFT uses Independent Component Analysis to make group inferences from fMRI data % For more information use the help button in the toolbox try% add this statement to fix the button color feature('JavaFigures', 0); catch end icatb_delete_gui({'groupica','eegift','sbm'})...
However, I can't run it in VS2017 because of this error: Severity Code Description Project File Line Suppression State Error An error occurred while signing: Failed to sign bin\Release\app.publish\SQLSvrDETool_OOP.exe. SignTool Error: No certificates were found that met all the given ...
内容realhowto网站典问答.pdf,Reals HowTo PDF version. This is the PDF version of the Reals HowTo Web site ( ). For up−to−date content, please refer to the Web site. There are 3 files : Reals Java , Reals Javascript and Reals Powerbuilder HowTo. Plea
In Interface Builder, add a UITableViewController to your storyboard. By default, the UITableViewController will use dynamic cells. That is perfect for our demo. The only other configuration we need to do is to configure our dynamic cell. Click on the cell and give it a reuse identifier. ...