java string is null or empty
public class Null {
public static boolean isNullOrEmpty(String str) {
if(str != null && !str.isEmpty())
return false;
return true;
}
}java string is null or empty
public class Null {
public static boolean isNullOrEmpty(String str) {
if(str != null && !str.isEmpty())
return false;
return true;
}
}how to check null and empty string in java
if(str != null && !str.isEmpty())
Be sure to use the parts of && in this order, because java will not proceed to evaluate the second part if the first part of && fails, thus ensuring you will not get a null pointer exception from str.isEmpty() if str is null.Copyright © 2021 Codeinu
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