Check if a string is empty java

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");

Similar codes

0 vote219 views2 answers
Auto in java
Java
0 vote223 views1 answer
! en java
Java
0 vote204 views2 answers
How to get width android
Java
2 votes212 views6 answers
How to reverse a number in java
Java
2 votes207 views1 answer
Java cast duration to long
Java
3 votes217 views1 answer
Jlabel text center
Java
0 vote244 views1 answer
What is static setter and getter examples in java
Java
0 vote207 views1 answer
Getarguments().getstring updates android
Java
0 vote212 views1 answer
Java mockito print called methods
Java
0 vote209 views2 answers
Print prime numbers in java
Java