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;
}
}better way to check string on null and empty java
/* You can use Apache Commons */
StringUtils.isEmpty(str)
/* which checks for empty strings and handles null gracefully. */
/* HINT */
/* the shorter and simler your code, the easier it is to test it */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.check if a string is empty java
if (myString == null || myString.equals(""))
throw new IllegalArgumentException("empty string");Copyright © 2021 Codeinu
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