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 vote289 views1 answer
Java jpanel popup message
Java
1 vote273 views2 answers
Format localdate java
Java
0 vote265 views2 answers
Get week number from localdate java
Java
3 votes279 views4 answers
Can't convert bytebuffer to string in java
Java
2 votes289 views1 answer
Hibernate select count
Java
0 vote288 views1 answer
Java detect new line in string
Java
0 vote261 views1 answer
Stream reduce stringbuilder
Java
0 vote366 views1 answer
Spring boot return 201 created
Java Spring
1 vote284 views1 answer
Share application “link” in Android
Java
0 vote285 views1 answer
Textfield border radiuis in javafx
Java