![]() ![]() ![]() println ( "String " + input2 + " is empty :" + StringUtils. println ( "check if String empty by commons StringUtils" ) String is empty by Apache commons StringUtils ![]() println ( "String " + input3 + " is empty :" + input3. println ( "find if String empty using isEmpty method of Java println ( "String " + input2 + " is empty :" +isStringEmptyByEquals (input2 ) ) println ( "find if String empty using equals" ) println ( "String " + input3 + " is empty :" +isStringEmpty (input3 ) ) println ( "String " + input2 + " is empty :" +isStringEmpty (input2 ) ) println ( "String " + input1 + " is empty :" +isStringEmpty (input1 ) ) println ( "checking if String empty using length" ) String is empty using length method, also checks if string is null Here are our five ways to check empty String In this Java String tutorial, we going to see 5 ways to find ifĪny String in Java is empty or not. If the count of characters is zero then itsĪn empty String. Thankfully there are multiple ways to find if String is empty in Java or not.Ĭan also count the number of characters in String, as String is represented as a character arrayĪnd decide if String is empty or not. Since String is one of the mostįrequently used classes and commonly used in method arguments, we often need toĬheck if String is empty or not. The definition of empty String may be extended to those String as well which onlyĬontains white space but it's a specific requirement and in general String with white space is not considered as empty String in Ja va. Will result in .Įmpty String is represented by String literal “”. Null because calling length() method on null String By the way, before checking length you should verify that String is not String in Java is considered empty if it's not null and its length is ![]()
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