3 Ways to check if String is null or empty in Java

if(stirng != null && !string.isEmpty())
{
 System.out.println("String is not null and not empty");
}

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if(stirng != null && string.length() > 0)
{
   System.out.println("String is not null and not empty");
}


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if(stirng != null && string.trim().length() > 0)
{
System.out.println("String is not null and not empty");
}