First two deal with null value and second two deal with empty string. <xsl:if test="USER/FIRSTNAME"> USERNAME is not null </xsl:if> <xsl:if test="not(USER/FIRSTNAME)"> USERNAME is null </xsl:if> <xsl:if test="U
object EmptyStringExtensions { extension (str: String) def isEmptyOrWhitespace: Boolean = str.trim.isEmpty def isNullOrEmptyOrWhitespace: Boolean = str == null || str.isEmptyOrWhitespace } We must import EmptyStringExtensions to use the methods we defined above: import EmptyStringExtensions._ cl...
Check if a String is Null, Empty or Blank in Java Java: Check if String is Numeric How to Convert String to int in Java Reverse a String in Java Convert int to String in Java How to Split a String in Java: Different Examples
check if input is integer or string Check if linq result is null. check if the data column and the data row have the same value in a datatable check if the datarow has values in datatable check if the result is integer or not check if variable is number in C# Check if vb.net ...
Learn how to effectively check if a Java string is null, empty, and whitespace. Enhance code reliability and prevent errors. Master string validation in Java now!
Checking if a string is NULL or EMPTY is very common requirement in Powershell script. If we don’t do that we will end up with run time errors if we try to perform some operation on that string variable which is empty or null. So the question now is, how to check it?
Example 1: Check if String is Empty or Null class Main { public static void main(String[] args) { // create null, empty, and regular strings String str1 = null; String str2 = ""; String str3 = " "; // check if str1 is null or empty System.out.println("str1 is " + is...
where (**string.IsNullOrEmpty(f.ParentID)==**false && f.ParentID == TreeItemId) Tuesday, March 15, 2011 5:35 AM Still nothing, ParentID is a type of int, and allows null. Here is what I get: "The value for column 'ParentID' in table 'TreeItem' is DBNull." I tried whe...
public static void CheckIsNotNullOrEmpty( string paramName, string paramValue ) Parameters paramName Type: System.String The name of the parameter to check. paramValue Type: System.String The value of the parameter. See Also RequestChecker Class Microsoft.WindowsServerSolutions.WebApi.Framework Nam...
Entry<String, HealthIndicator> entry : healthIndicators.entrySet()) { //ignore EurekaHealthIndicator and flatten the rest of the composite //otherwise there is a never ending cycle of down. See gh-643 if (entry.getValue() instanceof DiscoveryCompositeHealthIndicator) { DiscoveryCompositeHealth...