isEmpty(String str) – Checks if a String is empty (“”) or null. StringUtils. isBlank(String str) – Checks if a String is whitespace, empty (“”) or null.
Read moreDoes == null work in Java?
Static methods are callable with a reference of the null type. You cannot call non-static methods with a reference of the null type. You can use == and != comparisons with null types in Java .
Read moreDoes == null work in Java?
Static methods are callable with a reference of the null type. You cannot call non-static methods with a reference of the null type. You can use == and != comparisons with null types in Java .
Read moreHow do I stop checking for null in Java?
10 Tips to Handle Null Effectively
Read moreHow do I stop checking for null in Java?
10 Tips to Handle Null Effectively
Read moreHow do I stop null checks?
One way of avoiding returning null is using the Null Object pattern . Basically you return a special case object that implements the expected interface. Instead of returning null you can implement some kind of default behavior for the object. Returning a null object can be considered as returning a neutral value.
Read moreHow do I stop null checks?
One way of avoiding returning null is using the Null Object pattern . Basically you return a special case object that implements the expected interface. Instead of returning null you can implement some kind of default behavior for the object. Returning a null object can be considered as returning a neutral value.
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